ROOTECH ACCURA 2300S User manual

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Distribution Panel Digital Power Meter
Accura 2300S front
Accura 2300S rear
Split-core Single-phase Three-feeder
Power Measuring Module
Special-purpose
Modules
Accura 2350-1P3FSC-125A
(Basic Module)
Accura 2350-GAS
Accura 2350-GW
Accura 2350-1P3FSC-125A-DIZCT
(Optional Module)
Accura 2350-TEMP
Accura TSEN
Accura 2350-TEMPS
Accura 2350-1P3FSC-60A
(Basic Module)
Accura 2350-DO
Accura 2350-IDC
Accura 2350-VDC
Accura 2350-1P3FSC-60A-DIZCT
(Optional Module)
Accura 2350-DCM-50V-
80A
Accura 2350-DCM-500V-
80A

Accura 2300S/2350-1P3FSC User Guide
Notice
ⓒ2015 Rootech Inc. All Rights Reserved
Page 3
Notice
Symbols
Caution
Indicates the presence of dangerous voltage which can cause severe injury or
death if proper precautions are not followed.
Caution
Alerts users of the presence of hazards which can cause injury to persons,
property damage or damage to the device if proper precautions are not
followed.
Note
Indicates major instructions for the installation, operation, and maintenance of
the product.
Indicates alternative voltage or current.
Indicates direct voltage or current.
Installation Considerations
The installation, operation, and maintenance of the product should be performed only by
qualified, competent personnel that have received appropriate training for high voltage and
current devices.
Caution
If hazardous voltages are mishandled while installing and operating the product in the
field, it can cause serious injury or death.
◼This device must be installed and serviced only by qualified personnel who have in-depth
knowledge of installing, commissioning and operating the device and have had
appropriate training. He or she should have read and understood the various safety
measures and warnings stated in the instructions.
◼Before carrying out any work on the device, switch off the power supply to the device.
◼Always use an appropriate voltage detection device to confirm the absence of voltage.
◼Always power the device with the correct rated voltage.

Notice
Accura 2300S/2350-1P3FSC User Guide
Page 4
ⓒ2015 Rootech Inc. All Rights Reserved
◼Install the device in a suitable electrical cabinet by following recommended installation
instructions. Failure to take these precautions could cause serious injuries or death.
Caution
Observe the following instructions, or it may cause permanent damage to the product.
To ensure that the device operates correctly, make sure that:
◼The device is correctly installed.
◼The auxiliary power supply voltage indicated on the product is observed: AC 85 –265 V,
DC 100 –300 V
About the Manual
Rootech Inc. reserves the right to make changes in the product specifications shown in this User Guide
without prior notice. We recommend that customers should obtain the latest information on product
specifications and the manual before making orders.
In the absence of written agreements, Rootech, Inc. assumes no liability for applications assistance,
customer’s system design, or infringement of patents or copyrights induced by third parties arising
from the use of the products described herein.
We endeavor to provide accurate information in the document. However, we are not responsible for any
errors which may appear here and reserves the right to make changes without prior notice.
Limitation of Liability
Where applicable law allows and does not prohibit or restrict such limitation, Rootech, Inc’s
liability for this product shall be limited to the amount actually paid by customers for the
product.

Accura 2300S/2350-1P3FSC User Guide
Warranty
ⓒ2015 Rootech Inc. All Rights Reserved
Page 5
Warranty
Rootech Inc. provides warrants for two years from the product receipt date only to the
original purchaser of the products and software that are sold or licensed by the company.
To obtain warranty service, the purchased products should be free from serious defects in
material and workmanship.
The software is provided in an up-to-date version, thus we do not offer any warranty for the
software product.
In order to make a product claim under the warranties described above, the original
purchaser should immediately contact Rootech headquarters. Upon receiving claims, Rootech
will check out the product either at where the purchaser is or at the company after receiving
the product from the customer, who is responsible for the cost of shipping the product. After
inspecting the product, we will provide repair or replacement services for the product.
Rootech will decide at its discretion whether to repair or replace it or give a refund for the
product for when the warranty period for the product expired or issues related to the
product are not applicable for warranty terms and conditions.
Limitation of Warranty
The Warranty does not apply to uninterrupted or error-free operation of the product or cover normal
wear and tear of the product or costs caused by the removal, installation, or troubleshooting of the
customer's electrical systems.
Defects caused by any of the following factors are not covered under the warranty.
◼Improper use (alteration, accident, misuse, abuse) or failure to act in accordance with
installation, operation or maintenance instructions
◼Unauthorized modifications, changes or repair attempts
◼Failure to comply with applicable safety standards & regulations
◼Damages coming from when transporting or storing the product
◼Damages caused by the force majeure event, including fire, flood, earthquakes, storm
damage, overvoltage & lightning
◼If the original identification marks (trade-mark, serial number, etc.) have been defaced,
altered, or removed.

Warranty
Accura 2300S/2350-1P3FSC User Guide
Page 6
ⓒ2015 Rootech Inc. All Rights Reserved
Rootech shall not be liable for any other claims except the claims made by customers, including the
original purchaser, his employees, agents, or contractors for any loss, damage, or expense incurred
related to the purchased product when the above warranty terms and conditions are not fulfilled.
Any technical assistance with system design provided by Rootech's personnel or representatives shall be
deemed to be a suggestion. The original purchaser is responsible for determining the feasibility of such
suggestions and should conduct tests to prove their feasibility.
It is the original purchaser’s responsibility to determine the suitability of the product and associated
documentation. The original purchaser should acknowledge that 100% up time is not realizable because
of possible hardware or software defects. The original purchaser should recognize that such defects and
failures may cause inaccuracies or malfunctions.
No agency, corporate entity, or employee of Rootech or other companies has authority to amend,
modify or extend the terms and conditions of this warranty in any way without express written
authorization from Rootech, Inc.
Standards Compliance
Energy-usage Monitor
E522977
MSIP-REM-RTE-ACCURA2300S

Accura 2300S/2350-1P3FSC User Guide
Revision History
ⓒ2015 Rootech Inc. All Rights Reserved
Page 7
Revision History
The following versions of 「Accura 2300S/2350-1P3FSC User Guide」have been released.
Revision
Date
Description
Revision 2.00
February 14, 2022
Release of the User Guide for the device with HW revision number
higher than 200.00
Changed voltage sampling information to 512 samples/cycle
Added contents on the demand sync mode
Added contents on the power event log
Modified the input accuracy of the ZCT of Accura 2350-1P3FSC-DIZCT
module
Revision 2.01
September 27, 2022
Changed some of the terms used in the document to achieve
consistency

Contents
Accura 2300S/2350-1P3FSC User Guide
Page 8
ⓒ2015 Rootech Inc. All Rights Reserved
Contents
Chapter 1 Introduction..................................................................................................................................................... 15
Overview..................................................................................................................................................................................................................15
Applications ........................................................................................................................................................................................................... 18
Product Information .......................................................................................................................................................................................... 19
Data Center Distribution Panel Digital Meter/Split-core Single-phase Three-feeder Power Measuring
Module........................................................................................................................................................................................................... 19
Distribution Panel Digital Power Meter/General Power Measuring Module ............................................................. 19
Special-purpose Modules.....................................................................................................................................................................20
Installation Example ................................................................................................................................................................................ 21
Product Features.......................................................................................................................................................................................24
Chapter 2 Installation ....................................................................................................................................................... 27
Installation Conditions...................................................................................................................................................................................... 27
Before Installation...............................................................................................................................................................................................28
Product Appearance ............................................................................................................................................................................... 28
Components................................................................................................................................................................................................29
Dimensions ..................................................................................................................................................................................................30
Installation Diagram................................................................................................................................................................................32
Step 1: Installing the Product .......................................................................................................................................................................34
Mounting Accura 2300S on the Panel ..........................................................................................................................................34
Mounting Accura 2350-1P3FSC Power Measuring Module on the Panel .................................................................. 35
Step 2: Accura 2300S Wiring ........................................................................................................................................................................ 40
Accura 2300S Voltage Wiring ............................................................................................................................................................40
Digital Input/Output Wiring of Accura 2300S........................................................................................................................... 46
Step 3: Through-hole Current Wiring of Accura 2350-1P3FSC...................................................................................................49
Step 4: Connecting Accura 2350-1P3FSC-DIZCT Module to DIs/ZCT ..................................................................................... 54
Step 5: Connecting Accura 2300S with Accura 2350 ....................................................................................................................... 57
Step 6:Connecting Accura 2300S Devices for External Communication ................................................................................ 59
Ethernet Communication......................................................................................................................................................................59
RS-485 Communication ........................................................................................................................................................................ 61
Step 7: Accura 2300S Control Power Supply and Ground Wiring.............................................................................................63
Control Power Supply Wiring............................................................................................................................................................. 63
Ground Wiring ...........................................................................................................................................................................................63
Chapter 3 Accura 2350-1P3FSC Operation/Setup ........................................................................................................... 64
Operation Mode ....................................................................................................................................................................................... 64
Button Operation...................................................................................................................................................................................... 64
Front View.................................................................................................................................................................................................... 65
Display Mode ............................................................................................................................................................................................. 66

Accura 2300S/2350-1P3FSC User Guide
Contents
ⓒ2015 Rootech Inc. All Rights Reserved
Page 9
Setup Mode.................................................................................................................................................................................................67
Chapter 4 Accura 2300S Operation/Setup ................................................................................................................... 76
Device Configuration ........................................................................................................................................................................................ 76
Operation Mode ....................................................................................................................................................................................... 76
LED Display.................................................................................................................................................................................................. 76
Button Operation...................................................................................................................................................................................... 77
Display Mode........................................................................................................................................................................................................79
Front View.................................................................................................................................................................................................... 79
Selecting the ID of Accura 2350 Module.....................................................................................................................................81
Full Display Screen...................................................................................................................................................................................83
Measurement of Voltage/Current/Power ..................................................................................................................................... 84
Measurement of Voltage/Frequency ..............................................................................................................................................84
Measurement of Current ......................................................................................................................................................................85
Measurement of Power/Power Factor............................................................................................................................................85
Measurement of Demand ....................................................................................................................................................................86
Measurement of Active Energy ......................................................................................................................................................... 86
Measurement of Leakage Current ...................................................................................................................................................87
Ethernet Information ..............................................................................................................................................................................87
Temperature/ Date & Time ................................................................................................................................................................. 89
Setup Mode...........................................................................................................................................................................................................90
Full Screen in Setup Mode..................................................................................................................................................................91
Measurement Setup................................................................................................................................................................................ 92
Event Setup .................................................................................................................................................................................................98
Accura 2350 Module ID Setup ........................................................................................................................................................109
Ethernet Communication Setup......................................................................................................................................................113
RS-485 Communication Setup ........................................................................................................................................................116
Reset Configuration...............................................................................................................................................................................118
Digital Input/Output Setup ...............................................................................................................................................................120
Display Setup............................................................................................................................................................................................125
Information................................................................................................................................................................................................128
Event Log Mode ................................................................................................................................................................................................129
Start Event and End Event .................................................................................................................................................................129
Start Event Alarm Generation ..........................................................................................................................................................129
Clearing Event Notifications..............................................................................................................................................................129
Button Function.......................................................................................................................................................................................130
Event Log Number.................................................................................................................................................................................131
Event Timestamp ....................................................................................................................................................................................131
Dip Event Log...........................................................................................................................................................................................132
Swell Event Log .......................................................................................................................................................................................132
Fuse Fail Event Log................................................................................................................................................................................133
Temperature Event Log .......................................................................................................................................................................134
Current Event Log ..................................................................................................................................................................................134

Contents
Accura 2300S/2350-1P3FSC User Guide
Page 10
ⓒ2015 Rootech Inc. All Rights Reserved
Leakage Current Event Log ...............................................................................................................................................................135
Demand Current Event Log...............................................................................................................................................................136
DI Event Log .............................................................................................................................................................................................137
No Event Log............................................................................................................................................................................................137
Necessary Steps for Device Setup ...........................................................................................................................................................138
Step 1: Setup for the Voltage Wiring of Accura 2300S and PT Rating ......................................................................138
Step 2: Automatic Assignment of Accura 2350 Module IDs and Update of IDs ..................................................139
Step 3: Ethernet Setup of Accura 2300S ....................................................................................................................................142
Chapter 5 Measurements............................................................................................................................................... 143
General Measurement ....................................................................................................................................................................................143
Measurement Event .........................................................................................................................................................................................145
Voltage Wiring....................................................................................................................................................................................................146
3-Phase 4-Wire Connection..............................................................................................................................................................146
3-Phase 3-Wire Connection..............................................................................................................................................................147
1-Phase 3-Wire Connection..............................................................................................................................................................149
1-Phase 2-Wire Connection..............................................................................................................................................................150
Measurement of Voltage Dips(Sags)/Swells........................................................................................................................................151
Leakage Current Measurement..................................................................................................................................................................152
Residual Voltage Measurement .................................................................................................................................................................152
Measurement of Power Per Phase ...........................................................................................................................................................153
Power Factor(PF) Measurement .................................................................................................................................................................154
Phase Angle Measurement(Lead/Lag)....................................................................................................................................................154
Demand Measurement...................................................................................................................................................................................155
Voltage Harmonics ...........................................................................................................................................................................................157
Current Harmonics ...........................................................................................................................................................................................157
Unbalance(NEMA MG1).................................................................................................................................................................................158
Negative-Sequence/Zero-Sequence Unbalance................................................................................................................................159
Aggregation.........................................................................................................................................................................................................160
Appendix A Specifications ............................................................................................................................................. 163
Appendix B Standards Compliance.............................................................................................................................. 168
IEC 62053-22:2020 Static Meters for AC Active Energy (Classes 0.1S, 0.2S and 0.5S) .......................................171
IEC 62053-24:2020 Static Meters for Fundamental Reactive Energy (Classes 0.5S, 1S, 1, 2 and 3) ............171
Appendix C Accuracy/Reliability................................................................................................................................... 172
Accuracy......................................................................................................................................................................................................172
Reliability.....................................................................................................................................................................................................173
Appendix D Line-to-neutral Voltage for Common Main Supply Systems.................................................................... 174
Wiring Modes...........................................................................................................................................................................................174

Accura 2300S/2350-1P3FSC User Guide
Contents
ⓒ2015 Rootech Inc. All Rights Reserved
Page 11
Appendix E Ordering Information................................................................................................................................ 175

Figures
Accura 2300S/2350-1P3FSC User Guide
Page 12
ⓒ2015 Rootech Inc. All Rights Reserved
Figures
Fig 1.1 Accura 2350-1P3FSC Module Compatible with MCCBs/ELBs............................................................................ 17
Fig 1.2 Installation of Accura 2350-1P3FSC Module..............................................................................................................17
Fig 1.3 Installation of Accura 2350-1P3FSC (Using Accura 2350-3P-CT5A Module).............................................21
Fig 1.4 Installation of Accura 2350-1P3FSC (Using Accura 2350-1PSCSH Modules) ............................................22
Fig 2.1 Accura 2300S Front .................................................................................................................................................................28
Fig 2.2 Accura 2300S Side ................................................................................................................................................................... 28
Fig 2.3 Accura 2300S Rear................................................................................................................................................................... 28
Fig 2.4 Accura 2350-1P3FSC Power Measuring Modules....................................................................................................29
Fig 2.5 Accura 2300S Components ................................................................................................................................................. 29
Fig 2.6 Accura 2350-1P3FSC Components.................................................................................................................................. 29
Fig 2.7 Accura 2300S Front Dimensions.......................................................................................................................................30
Fig 2.8 Accura 2300S Side Dimensions......................................................................................................................................... 30
Fig 2.9 Accura 2300S Rear Dimensions ........................................................................................................................................ 30
Fig 2.10 Accura 2350-1P3FSC Module Dimensions................................................................................................................ 31
Fig 2.11 Installation Diagram of Accura 2350-1P3FSC(Using Accura 2350-3P-CT5A Module) ........................32
Fig 2.12 Accura 2350-1P3FSC Installation Diagram (using Accura 2350-1PSCSH Module) .............................. 33
Fig 2.13 Mounting Accura 2300S on the Panel........................................................................................................................ 34
Fig 2.14 New Installation of Accura 2350-1P3FSC (Using Mounting Wings)............................................................35
Fig 2.15 Mounting Accura 2350-1P3FSC on Panel through Mounting Holes (Using Mounting Wings) .... 36
Fig 2.16 New Installation of Accura 2350-1P3FSC (Using the Lower Part of the Module)................................ 37
Fig 2.17 Retrofit Installation of Accura 2350-1P3FSC (Fixing the Module with Cable Ties) ..............................38
Fig 2.18 Retrofit Installation of Accura 2350-1P3FSC ............................................................................................................ 39
(Fixing the Module Using the Lower Part of the Module).................................................................................................. 39
Fig 2.19 Voltage Wiring of Accura 2300 S ..................................................................................................................................40
Fig 2.20 3-phase 4-wire, Direct Connection ............................................................................................................................... 42
Fig 2.21 3-phase 4-wire Connection with 3 PTs....................................................................................................................... 42
Fig 2.22 3-phase 3-wire, Direct Connection ............................................................................................................................... 43
Fig 2.23 Three-phase 3-wire Connection with 2 PTs .............................................................................................................43
Fig 2.24 Single-phase 3-wire, Direct Connection..................................................................................................................... 44
Fig 2.25 Single-phase 3-wire Connection with 2 PTs ............................................................................................................44
Fig 2.26 Single-phase 2-wire, Direct Connection..................................................................................................................... 45
Fig 2.27 Single-phase 2-wire Connection with 1 PT .............................................................................................................. 45
Fig 2.28 Digital Input/Output Channels on Accura 2300S.................................................................................................. 46
Fig 2.29 Digital Input.............................................................................................................................................................................. 47

Accura 2300S/2350-1P3FSC User Guide
Figures
ⓒ2015 Rootech Inc. All Rights Reserved
Page 13
Fig 2.30 Application of DC Relay .....................................................................................................................................................48
Fig 2.31 Application of AC Relay......................................................................................................................................................48
Fig 2.32 Location of the Cables Passing Through the Holes of Accura 2350-1P3FSC Module.......................50
Fig 2.33 Measurement Principle of Accura 2350-1P3FSC.................................................................................................... 51
Fig 2.34 Through-hole Wiring in 3P4W Mode..........................................................................................................................51
Fig 2.35 Through-hole Wiring in 3P3W Mode..........................................................................................................................53
Fig 2.36 4 Digital Input Channels on the Optional Module ..............................................................................................54
Fig 2.37 3 ZCT Input Channels on the Optional Module .................................................................................................... 55
Fig 2.38 Connecting the Optional Module to the External ZCT ......................................................................................55
Fig 2.40 Example of Connecting Accura 2300S to Accura 2350 for Dedicated Communication ................... 57
Fig 2.41 Ethernet Communication Ports on Accura 2300S................................................................................................. 59
Fig 2.42 Connecting Accura 2300S Devices via Ethernet Communication.................................................................60
Fig 2.43 RS-485 Communication Port on Accura 2300S .....................................................................................................61
Fig 2.44 Connecting Accura 2300S Devices via RS-485 Communication.................................................................... 62
Fig 2.45 Accura 2300S Power Supply Wiring............................................................................................................................. 63
Fig 4.1 Accura 2300S Front View ..................................................................................................................................................... 76
Fig 4.2 Screen in Display Mode ........................................................................................................................................................ 77
Fig 4.3 Screen in Setup Mode ........................................................................................................................................................... 77
Fig 4.4 Screen in Event Log Mode .................................................................................................................................................. 78
Fig 4.5 Accura 2300S Front View ..................................................................................................................................................... 79
Fig 4.6 Temperature Sensor on Accura 2300S .......................................................................................................................... 81
Fig 4.7 Selecting the ID of Accura 2350 Module.....................................................................................................................81
Fig 4.8 Line-to-neutral Voltage/Current/Power Display Screen........................................................................................ 84
Fig 4.9 Line-to-line Voltage/Current/Power Display Screen ...............................................................................................84
Fig 4.10 Line-to-line Voltage Display Screen .............................................................................................................................85
Fig 4.11 Current Display Screen........................................................................................................................................................85
Fig 4.12 Active Power Display Screen............................................................................................................................................ 86
Fig 4.13 Active Power Demand Display Screen ........................................................................................................................ 86
Fig 4.14 Net Energy Display Screen................................................................................................................................................87
Fig 4.15 Leakage Current Display Screen.....................................................................................................................................87
Fig 4.16 Ethernet Connection Status Display Screen .............................................................................................................88
Fig 4.17 Temperature Display Screen............................................................................................................................................. 89
Fig 4.18 3-phase 4-wire Connection(3P4W): Setup for PT Primary VL12 & Secondary V12.................................92
Fig 4.19 3-phase 3-wire Connection(3P3W): Setup for PT Primary VL12 & Secondary V12.................................93
Fig 4.20 1-phase 3-wire Connection(1P3W): Setup for PT Primary VL12 & Secondary V13.................................93
Fig 4.21 1-phase 2-wire Connection(1P2W): Setup for PT Primary VL1 & Secondary V1N..................................93

Figures
Accura 2300S/2350-1P3FSC User Guide
Page 14
ⓒ2015 Rootech Inc. All Rights Reserved
Fig 4.22 Dip Event Setup(3-phase 4-wire)................................................................................................................................... 99
Fig 4.23 Dip Event Setup(3-phase 3-wire)................................................................................................................................... 99
Fig 4.24 Swell Event Setup(3-phase 4-wire) .............................................................................................................................101
Fig 4.25 Swell Event Setup(3-phase 3-wire) .............................................................................................................................101
Fig 4.26 Dip(Sag) Event Notification Screen.............................................................................................................................129
Fig 4.27 Swell Event Notification Screen....................................................................................................................................129
Fig 4.28 Example of Event Log Number.....................................................................................................................................131
Fig 5.1 3P4W Connection with 3 PTs and 3 CTs ....................................................................................................................146
Fig 5.2 3P3W Connection with 2 PTs and 3 CTs ....................................................................................................................147
Fig 5.3 1P3W Connection with 2 PTs and 2 CTs ....................................................................................................................149
Fig 5.4 1P2W Connection with 1 PT and 1 CT........................................................................................................................150
Fig 5.5 Calculation of 1-cycle RMS Voltage Refreshed Each Half Cycle ....................................................................151
Fig 5.6 Voltage Dip(Sag) Detection...............................................................................................................................................151
Fig 5.7 PF Sign and Phase Angle(Lead/Lag).............................................................................................................................154
Fig 5.8 Demand Calculation..............................................................................................................................................................155
Fig 5.9 Predicted Demand Calculation ........................................................................................................................................156
Fig 5.10 Hourly Auto Sync.................................................................................................................................................................156
Fig 5.11 Manual Sync ...........................................................................................................................................................................157
Fig 5.12 Symmetrical Components................................................................................................................................................159
Fig 5.13 Aggregation Process ..........................................................................................................................................................160

Accura 2300S/2350-1P3FSC User Guide
Chapter 1 Introduction
ⓒ2015 Rootech Inc. All Rights Reserved
Page 15
Chapter 1 Introduction
Overview
Paradigm Shift in Energy Management
When energy costs were low, energy management mainly focused on controlling the total energy
supply to all loads using switchgear panels, including incoming feeders and ABS panels for stable
power supply. However, carbon pricing policies have been implemented since 2015, and energy costs
have sharply increased. This has resulted in a rapidly growing need to manage energy usage on
individual branch loads in distribution panels at various industrial facilities, manufacturing plants, IDC
centers, etc.
Limit in Applying Digital Power Meters Used in Switchgear Panels to Distribution Panels
Installing digital power meters used in existing switchgear panels at distribution panels entails
limitations, such as narrow installation space, electrical hazards arising from the voltage and current
wiring process, and high installation costs. It makes it difficult for energy managers to access energy
data on individual branch loads and devise practical energy efficiency measures for each branch load.
Power Meters Specialized for Managing Major Branch Loads
The distribution panel digital power meter product line includes Accura 2300S installed on the front of
distribution panels(including MCC panels) and Accura 2350 installed at individual branch loads inside
distribution panels. Accura 2300S collects power data from multiple Accura 2350 modules via internal
communication and displays measurement data on each branch load. This enables energy managers to
check power data on individual branch loads in distribution panels, which were unavailable with the
existing digital power meters installed at switchgear panels.
Accura 2350-1P3FSC Module Suitable for Measurements at Distribution Panels in Data
Centers with Multiple Single-phase Feeders
Distribution panels within data centers have multiple single-phase feeders with the same current ratings
for power supply to servers. As the basic module, Accura 2350-1P3FSC performs measurements in three
single-phase feeders with the same current ratings at the same time. Compared to installing Accura
2350-1P/1PSC module on each feeder, it drastically saves installation time and costs.

Chapter 1 Introduction
Accura 2300S/2350-1P3FSC User Guide
Page 16
ⓒ2015 Rootech Inc. All Rights Reserved
Accura 2350-1P3FSC-DIZCT Module Monitoring Leakage Current for Each Single-phase
Feeder and the Trip Status of the MCCB
As an expansion module of Accura 2350-1P3FSC module, Accura 2350-1P3FSC-DIZCT is the optional
single-phase, three-feeder power measuring module that monitors leakage current for each feeder and
the trip status of the MCCB. It not only enables efficient energy management but also ensures the
continuity of the power supply and the safe use of electrical equipment.
Accurate Measurements: ±0.2 %/±0.5 % of Reading(Volt-age/Current) and Class
0.5S(Active Energy)
Due to greenhouse gas emission regulations, it has recently become essential to establish enterprise-
wide energy management systems for efficient energy usage at sites such as plants, manufacturing
factories, and buildings.
A key factor determining the reliability of energy management systems is the measurement accuracy of
meters. Accura 2300S/2350 perform accurate voltage/current measurements with ±0.2/±0.5%1of
reading accuracy. It also meets IEC 62053-22 Class 0.5S standards for active energy measurement. Thus,
this allows for accurate analysis and diagnosis of various problems in energy management at power
facilities.
1. The maximum accuracy error of ±1 % may occur according to the position of the holes
cables pass through.
A Variety of Data including Dip(Sag)/Swell Available for Power Quality Analysis
Accura 2300S/2350 provide a variety of data, including dips(sags), swells and harmonics(up to 40th
order), crest factor, K-factor, and unbalance for power quality analysis. It allows energy managers to
easily identify changes in power quality in various distribution panels at power facilities, enabling
effective power quality management.
Maximum/Minimum/Average Values Available within an Aggregation Interval
Accura 2300S/2350 calculate the average of the data collected every 0.5 seconds based on the data
measured over one cycle for various parameters, including voltage, current, and power. Based on this
data, it also provides the maximum/minimum/average values for various aggregation intervals, including
1 second, 5 seconds, 1 minute, 5 minutes, 1 hour and 6 hours. A measurement interval longer than 0.5
seconds refers to an aggregation interval.
Via communication, Accura 2300S/2350 provide not only the average value for the 0.5-second interval
but also the maximum/minimum/average values for each aggregation interval and timestamped data
for the max/min values. Since it includes measurement data that change instantaneously during
aggregation intervals, it allows for accurate trend analysis of voltage, current and power quality.

Accura 2300S/2350-1P3FSC User Guide
Chapter 1 Introduction
ⓒ2015 Rootech Inc. All Rights Reserved
Page 17
Proven Safety and Reliability with CE/UL Certifications
The internal and external structures(product and circuit design) of Accura 2300S/2350 meet safety and
reliability requirements for CE(EN 61326-1, EN 61326-2-1, EN 61010-1) and UL(UL 61010-1 3rd edition,
IEC 61010-2-030) standards.
Compatible with MCCBs/ELBs with the Same Current Rating
Accura 2350-1P3FSC power measuring modules are compatible with the MCCB with a current rating of
60 A or 125 A since they have identical installation dimensions and wiring hole positions. Thus, when
installing the products, it is possible to integrate them into the existing MCCBs/ELBs in distribution
panels.
Fig 1.1 Accura 2350-1P3FSC Module Compatible with MCCBs/ELBs
Split-core Structure Enabling Device Installation on Live Wires
Accura 2350-1P3FSC module feature the split-core structure. It allows for the easy installation of the
product on live wires without the need to cut off power.
Fig 1.2 Installation of Accura 2350-1P3FSC Module

Chapter 1 Introduction
Accura 2300S/2350-1P3FSC User Guide
Page 18
ⓒ2015 Rootech Inc. All Rights Reserved
Applications
Enterprise-wide Energy Management
Accura 2300S/2350 provide energy data on individual branch loads in distribution panels. Therefore, it
allows for a true enterprise-wide energy management in conjunction with other Accura products
(Accura 3300S/3500S/3550S/3700/7500) installed in switchgear panels.
Energy Management of Individual Servers in Data Centers
Accura 2350-1P3FSC module is optimized for use in distribution panels for server racks with multiple
single-phase feeders with the same current ratings. One Accura 2350-1P3FSC module can perform
measurements in three single-phase feeders. Accura 2350-1P3FSC-DIZCT module monitors leakage
current in each feeder and the trip status of the MCCB, enabling efficient energy management and the
safe use of electrical equipment.
CO2 Emission Management by Reduction of High Energy Cost
Accura 2300S/2350 provide a variety of information needed for effective management of energy
consumption, power facilities, and power quality, as well as analysis of high efficiency equipment. This
allows energy managers to conduct accurate analysis of energy consumption and effectively manage
CO2 emissions.
Energy Efficiency Evaluation of High-efficiency Equipment
Energy managers can identify the efficiency of a range of high-efficiency devices to be installed,
including LED lighting, motors, and power equipment based on the highly accurate energy data
provided by Accura 2300S/2350 modules.

Accura 2300S/2350-1P3FSC User Guide
Chapter 1 Introduction
ⓒ2015 Rootech Inc. All Rights Reserved
Page 19
Product Information
Data Center Distribution Panel Digital Meter/Split-core Single-phase Three-feeder Power
Measuring Module
Data center distribution panel digital power meter product line includes Accura 2300S mounted on the
front of distribution panels and Accura 2350-1P3FSC modules connected to 3 single-phase loads in the
panel. Accura 2300S collects data from multiple Accura 2350-1P3FSC modules connected with 6C
telephone lines 1, and displays the data on its LCD screen.
Device
Model
Description
Weight
Distribution panel digital
power meter
Accura 2300S
Measures the voltage of the incoming
line in the distribution panel
487 g
Transmits the sampled voltage data to
Accura 2350 modules
Collects data from Accura 2350 modules
and selectively displays the data on the
LCD screen 2
Performs Ethernet or RS-485
communication
Measures the temperature 3of Accura
2300S with the sensor located at the rear
of the device
Split-core single-phase
Accura 2350-1P3FSC-125A
Basic current 125 A
457 g 4
three-feeder
Accura 2350-1P3FSC-125A-DIZCT
Basic current 125 A, option(digital input/
ZCT connection)
468 g4
power measuring module
Accura 2350-1P3FSC-60A
Basic current 60 A
393 g4
Accura 2350-1P3FSC-60A-DIZCT
Basic current 60 A, option(digital input/
ZCT connection)
404 g4
Mounting wing
-
-
4 g
1. It is provided with the product. The conducting wire of the 6C telephone line should be at least 0.128 mm2(26
AWG). It is recommended to keep a distance of over 5 mm from power lines generating high levels of noise to
prevent interference.
2. The LCD screen only shows the measurement data of the selected Accura 2350 module. Refer to 「Chapter 4
Accura 2300S Operation/Setup > Display Mode > Accura 2350 Module ID Selection」.
3. Temperature measurement is not for fire detection, but for reference only. A temperature sensor is located at the
rear of Accura 2300S.
4. It is the weight excluding the mounting wing.
Distribution Panel Digital Power Meter/General Power Measuring Module
Refer to 「Accura 2300S/2350 User Guide」for details on distribution panel digital power meters except
for the Accura 2350-1P3FSC module which measures three single-phase feeders at the same time.

Chapter 1 Introduction
Accura 2300S/2350-1P3FSC User Guide
Page 20
ⓒ2015 Rootech Inc. All Rights Reserved
Special-purpose Modules
Accura 2350 modules with specialized functions are as follows. For details on the special-purpose
modules, refer to the user guide for each module.
Module
Model
Description
GAS(GAS)
Accura 2350-GAS
Detects and measures combustible gases
GW(Gateway)
Accura 2350-GW
Collects data on peripheral devices supporting RS-485
communication
TEMP(Temperature)
Accura 2350-TEMP
Measures the external temperature of the panel where the module
is installed
Collects internal temperature data measured by Accura TSEN
devices(Up to 6 devices can be connected.)
Accura 2350-TEMPS
Measures the internal and external temperature of the panel(based
on the installation location)
DO(Digital Output)
Accura 2350-DO
Provides digital outputs which can be controlled from Accura 2300S
and also remotely
IDC(DC Current Input)
Accura 2350-IDC
Measures analog DC current inputs (-20 mA to 20 mA)
VDC(DC Voltage Input)
Accura 2350-VDC
Measures analog DC voltage inputs (-50 V to 50 V)
DCM(DC Voltage/Current)
Accura 2350-DCM
-50V-80A
Measures DC voltage/current up to 50 V/80 A
-500V-80A
Measures DC voltage/current up to 500 V/80 A