CE+T Power RBS Series User manual

Copyright © 2013. Construction electroniques & telecommunications S.A.
All rights reserved. The contents in document are subject to change without notice.
The products presented are protected by several international patents and trademarks.
Address: CE+T S.a, Rue du Charbonnage 12, B 4020 Wandre, Belgium
www.cet-power.com - [e-mail]
DUAL INPUT INVERTER
The Commercial Power as default source
AC BACKUP IN A DC ENVIRONMENT
Leverage your existing DC infrastructure
ONE STOP SHOP
Wide output power range
HARSHEST AC INPUT CONDITIONS
Without compromising the quality of the AC output
BEYOND THE INVERTER
THE NEW GENERATION OF POWER CONVERTERS
www.cet-power.com
TSI REDUNDANT BRAVO SYSTEM
(RBS)-120 VAC
User Manual V7.0
Important Safety Instructions
Save these Instructions

2 – RBS 120VAC– User manual – v7.0
Table of content
1. CE+T at a glance ...................................................................................................................................................... 5
2. Abbreviations ........................................................................................................................................................... 6
3. Safety Instructions .................................................................................................................................................... 7
3.1 Disclaimer ........................................................................................................................................................ 7
3.2 Technical care .................................................................................................................................................. 7
3.3 Installation........................................................................................................................................................ 8
3.3.1 Handling ............................................................................................................................................... 8
3.3.2 Surge and transients............................................................................................................................. 8
3.3.3 Other .................................................................................................................................................... 8
3.4 Maintenance .................................................................................................................................................... 9
3.5 Replacement and Dismantling .......................................................................................................................... 9
4. TSI TECHNOLOGY ..................................................................................................................................................... 10
4.1 EPC Mode......................................................................................................................................................... 11
4.2 On-line Mode.................................................................................................................................................... 11
4.3 Safe Mode........................................................................................................................................................ 11
4.4 Mix Mode & Walk-in Mode................................................................................................................................ 11
5. Building Blocks ......................................................................................................................................................... 12
5.1 Inverter module ................................................................................................................................................ 12
6. Accessories .............................................................................................................................................................. 13
6.1 T2S Interface.................................................................................................................................................... 13
6.1.1 Parameters setting................................................................................................................................ 13
6.1.2 System diagnostic and troubleshooting ................................................................................................ 13
6.1.3 On-the-fly monitoring ........................................................................................................................... 13
6.2 Catena.............................................................................................................................................................. 14
6.3 Candis.............................................................................................................................................................. 15
6.4 Surge Arresters................................................................................................................................................. 15
7. RBS Design and Description...................................................................................................................................... 16
7.1 System Design ................................................................................................................................................. 16
7.2 System Description........................................................................................................................................... 17
7.3 RBS Single Phase Configuration........................................................................................................................ 18
7.4 RBS Split Phase Configuration .......................................................................................................................... 19
7.5 RBS Three Phase Configuration ....................................................................................................................... 20
7.6 RBS Module based Current Ratings .................................................................................................................. 21
8. System Installation.................................................................................................................................................... 22
8.1 Site Preparation................................................................................................................................................ 22
8.2 Unpacking the system ...................................................................................................................................... 23
8.3 Fixing the System to Cabinet ............................................................................................................................ 23
8.4 Cabling............................................................................................................................................................. 23
8.4.1 Cable Inlets........................................................................................................................................... 24
8.4.2 Grounding............................................................................................................................................. 24
8.4.3 AC Input and Output.............................................................................................................................. 25

3 – RBS 120VAC– User manual – v7.0
8.4.4 DC Input ............................................................................................................................................... 27
8.4.5 Signalling Connection and Purpose ...................................................................................................... 29
9. Human-Machine Interface......................................................................................................................................... 31
9.1 Inverter module ................................................................................................................................................ 31
9.2 T2S .................................................................................................................................................................. 31
9.3 Candis Interface ............................................................................................................................................... 32
9.3.1 Installing Candis Display ....................................................................................................................... 32
9.3.2 Replacing Candis Display...................................................................................................................... 34
9.4 Catena GUI Interface......................................................................................................................................... 35
9.4.1 Installing Catena GUI Interface .............................................................................................................. 35
9.4.2 Replacing Catena GUI Interface............................................................................................................. 36
10. System set up.......................................................................................................................................................... 37
10.1 T2S USB........................................................................................................................................................... 37
10.1.1 Communication Setting......................................................................................................................... 37
10.1.2 Menu access ........................................................................................................................................ 38
10.2 T2S Ethernet via Catena ................................................................................................................................... 39
10.2.1 User GUI Interface Catena ..................................................................................................................... 39
10.2.2 The TOOLBAR ....................................................................................................................................... 45
10.3 Switching OFF RBS System .............................................................................................................................. 48
11. Inserting/removing/replacing modules ..................................................................................................................... 49
11.1 TSI Inverter....................................................................................................................................................... 49
11.1.1 Removal ............................................................................................................................................... 49
11.1.2 Inserting ............................................................................................................................................... 49
11.2 T2S .................................................................................................................................................................. 50
11.2.1 Removal ............................................................................................................................................... 50
11.2.2 Inserting ............................................................................................................................................... 50
11.3 Fan replacement............................................................................................................................................... 50
12. System Start-up and Shut down .............................................................................................................................. 51
12.1 Final Check....................................................................................................................................................... 51
12.2 START UP ........................................................................................................................................................ 52
13. Commissioning ......................................................................................................................................................... 53
13.1 Check list ......................................................................................................................................................... 54
14. Trouble Shooting and Defective Situations Fixing....................................................................................................... 55
14.1 Trouble Shooting............................................................................................................................................... 55
14.2 Defective modules............................................................................................................................................ 56
14.2.1 Replacing modules ............................................................................................................................... 56
14.2.2 Return defective T2S interface ............................................................................................................. 56
14.2.3 Return defective shelf .......................................................................................................................... 56
14.2.4 Return defective modules ..................................................................................................................... 56
15. Service .................................................................................................................................................................... 57
16. Maintenance Task..................................................................................................................................................... 58

Release Note:
Version Release date
(DD/MM/YYYY)
Modified page
number Modifications
7.0 16/03/2016 - First release of the Manual.
4 – RBS 120VAC– User manual – v7.0

1. CE+T at a glance
CE+T Power designs, manufactures and markets a range of products for industrial operators with mission critical applications,
who are not satisfied with existing AC backup systems performances, and related maintenance costs.
Our product is an innovative AC backup solution that unlike most used UPS’s
 Maximizes the operator’s applications uptime;
 Operates with lowest OPEX;
 Provides best protection to disturbances;
 Optimizes footprint.
Our systems are:
 Modular
 Truly redundant
 Highly efficient
 Maintenance free
 Battery friendly
CE+T puts 60+ years expertise in power conversion together with worldwide presence to provide customized solutions and
extended service 24/7 - 365
5 – RBS 120VAC– User manual – v7.0
CE+T at a glance

2. Abbreviations
TSI Twin Sine Innovation
EPC Enhanced Power Conversion
REG Regular
DSP Digital Signal Processor
AC Alternating current
DC Direct current
ESD Electro Static Discharge
MET Main Earth Terminal
MBP Manual By-pass
TCP/IP Transmission Control Protocol/Internet Protocol
USB Universal Serial Bus
PE Protective Earth (also called Main Protective Conductor)
N Neutral
PCB Printed Circuit Board
TRS True Redundant Structure
MCB Miniature Circuit Breaker
MCCB Molded Case Circuit Breaker
CB Circuit Breaker
6 – RBS 120VAC– User manual – v7.0
Abbreviations

3. Safety Instructions*
Important safety instructions and save these instructions.
3.1 Disclaimer
 The manufacturer declines all responsibilities if equipment is not installed, used or operated according to instructions
herein by skilled technician according to local regulations.
 Warranty does not apply if the product is not installed, used and handled according to the instructions in the manuals.
3.2 Technical care
 This electric equipment can only be repaired or maintained by “qualified employee” with adequate training. Even the
personnel who are in charge of simple repair or maintenance are required to have the knowledge or experience in relation
to electrical maintenance.
 Please follow the procedures contained in this Manual, and note all the “DANGER”, “WARNING” AND “NOTICE” marks
contained in this manual. Warning labels must not be removed.
 Qualified employees should have the knowledge to know how to recognize and avoid any dangers that might be present
when working on or near exposed electrical parts.
 Qualified employees should know how to lock out and tag out machines, so the machines will not accidentally be turned
on and hurt the employees that are working on them.
 Qualified employees also should know safety related work practices, including those by OSHA and NFPA, as well as
knowing what personal protective equipment should be worn.
 All operators are to be trained to perform the emergency shut-down procedure.
 This product is intended to be installed only in a restricted access area as defined by UL 60950 and in accordance with the
National Electrical Code ANSI/NFPA 70, or equivalent local agencies.
 Maximum operating ambient temperature is 50°C (122°F).
 This unit is intended for installation in a temperature-regulated, indoor area that is relatively free of conductive
contaminants.
 Never wear metallic objects such as rings, watches, bracelets during installation, service or maintenance of the product.
 This product is suitable for use in a computer room.
 CAUTION – Risk of electric shock. Capacitors store hazardous energy. Do not remove cover until 5 minutes after
disconnecting all sources of supply.
 CAUTION – Risk of electric shock. This Inverter / UPS receives power from more than one source. Disconnection of the AC
source and DC source is required to de-energize this unit before servicing.
 CAUTION - For continued protection against risk of fire, replace only with same type and rating of fuse.
 Insulated tools must be used at all times when working with live systems.
 When handling the system/units pay attention to sharp edges.
* These instructions are valid for most CE+T Products/Systems. Some points might however not be valid for the product
described in this manual
7 – RBS 120VAC– User manual – v7.0
Safety Instructions

3.3 Installation
 Inverter System may contain output over current protection in the form of circuit breakers. In addition to these circuit
breakers, the user must observe the recommended UL listed upstream and downstream circuit breaker requirements as
defined in this manual.
 UL listed (DIVQ) branch overcurrent protections have to be provided by others / by customer.
 Please use extreme caution when accessing circuits that may be at hazardous voltages or energy levels.
 The modular inverter rack is a dual input power supply. The complete system shall be wired in a way that both input and
output leads can be made powerless.
 When AC Mains is not connected, the output AC circuit is considered as a separately-derived source. If local codes require
grounding of this circuit, use the identified terminal for bonding this circuit to the enclosure. Ground the enclosure to a
suitable grounding electrode in accordance with local code requirements.
Ground the enclosure to the electrode terminal (see section 8.4.2, page 24).
 Remove output neutral-to-ground jumper when input AC MAINS is connected ( see section 8.4.3, page 25).
 Use 90°C copper wires / conductors only.
 AC and DC circuits shall be terminated with no voltage / power applied.
 The safety standard IEC/EN62040-1-1 requires that, in case of output short circuit, the inverter must disconnect in
maximum 5 seconds. Parameter can be adjusted on T2S; however, if the parameter is set at a value >5 seconds, an
external protection must be provided in order that the short circuit protection operates within 5 seconds. Default setting is
60s.
3.3.1 Handling
 The cabinet shall not be lifted using lifting eyes.
 Remove weight from the cabinet by unplugging the inverters. Mark inverters clearly with shelf and position for correct
rebuild. This is especially important in dual or three phase configurations.
 Empty inverter positions must not be left open. Replace with module or cover.
3.3.2 Surge and transients
The mains (AC) supply of the modular inverter system shall be fitted with suitable Lightning surge suppression and Transient
voltage surge suppression for the application at hand. Manufacturer’s recommendations of installation shall be adhered. It is
advisory to select device with alarm relay for function failure.
Indoor sites are considered to have a working lightning surge suppression device in service.
 Indoor sites Min Class II.
 Outdoor sites Min Class I + Class II or combined Class I+II.
3.3.3 Other
 Isolation test (Hi-Pot) must not be performed without instructions from the manufacturer.
8 – RBS 120VAC– User manual – v7.0
Safety Instructions

3.4 Maintenance
 The modular inverter system/rack can reach hazardous leakage currents. Earthing must be carried out prior energizing the
system. Earthing shall be made according to local regulations.
 Prior to any work conducted to a system/unit make sure that AC input voltage and DC input voltage are disconnected.
 Prior to accessing the system or modules, make sure all source of supply is disconnected.
CAUTION – Risk of electric shock. Capacitors store hazardous energy. Do not remove cover until 5 minutes after
disconnecting all sources of supply.
 Some components and terminals carry high voltage during operation. Contact may result in fatal injury.
3.5 Replacement and Dismantling
 ESD Strap must be worn when handling PCB’s and open units.
 CE+T cannot be held responsible for disposal of the Inverter system and therefore the customer must segregate and
dispose the materials which are potentially harmful to the environment, in accordance with the local regulations in force in
the country of installation.
 If the equipment is dismantled, to dispose of the products it consists of, you must stick to the local regulations in force in
the country of destination and in any case avoid causing any kind of pollution.
To download the latest documentation and software, please visit our website at www.cet-power.com.
9 – RBS 120VAC– User manual – v7.0
Safety Instructions

BOOST
DSP
T2S
EMI
FILTER
EMI
FILTER
EMI
FILTER
User
Interface
Redundant
Commuication
Bus
L
N
L’
N’
-
+
Local Signaling
10 – RBS 120VAC– User manual – v7.0
TSI TECHNOLOGY
4. TSI TECHNOLOGY 1
Inverter modules carrying the TSI logo and the EPC mark are triple port converters (AC in, DC in, AC out). Sinusoidal output is
converted from Mains or/and DC.
The block diagram here below gives an explicit description of the topology and operation.
The module is built around the following sub-converters
 AC to DC at input
 DC to DC at input
 DC to AC at output
The energy can flow either from the AC source or the DC source under the control of the local DSP controller. Thanks to internal
energy buffering, the output sine wave is constant and disturbance free regardless of the active source.
The BOOST functionality multiplies the nominal current for a period of 20ms (max) in the event of down stream current surge.
The upstream breakers do not have to be oversized to prevent tripping. After the boost has been activated or if the AC input is not
present the overload capacity is 150% for 15 seconds regardless of the source currently used.
The TSI works according to True Redundant Structure (TRS) that features decentralized and independent logic, redundant
communication bus and three internal levels of disconnection to isolate a module after internal failure.
The functionality is included in every inverter module. Running them in parallel provides a modular system with, no single point of
failure, always conditioned output, high system efficiency and 0ms source transfer time.
1 Information and data given in this chapter is intended to serve as an overview of the TSI Technology. Detailed features and parameters for each individual
module type of the range may differ and should be referred in the dedicated data sheet.

11 – RBS 120VAC– User manual – v7.0
TSI TECHNOLOGY
4.1 EPC Mode
 Mains input (AC) is the primary source whilst DC works as backup.
 The TSI is designed to operate on Mains on permanent basis and to deliver output voltage conditioned with low THD.
 There is no physical difference on the output sine wave whether the source is AC (or) DC. If the Mains is out of tolerance or
drops, the converter seamlessly switches to DC and the converter operates in “Back-up mode” (Switching time back and
forth is 0ms).
 As soon as the Mains returns to its valid range, the EPC mode is automatically resumed.
 The EPC mode offers higher efficiency (up to 96% depending on the model) without compromising the purity of the output
sine wave.
4.2 On-line Mode
 DC is the primary source of supply whilst Mains (AC) works as the secondary source of supply. Switching time between DC
input and AC input is 0ms (source transfer).
 The power delivered by the DC source (usually a battery , but it could be any other type of DC generator) is converted to
provide regulated and transient free power to the load.
 In case of short circuit at the load side, the boost is automatically, timely and energized for a specific duration to trip
downstream protective devices.
4.3 Safe Mode
 Safe mode uses DC as primary source of supply while Mains (AC) is in standby.
 Mains (AC) is normally disconnected through internal inlet relay and is only connected when down stream clearance is
required (boost) or if DC is unavailable.
 The transfer between DC and AC results in typical transfer time of 10ms.
 Typically the safe mode is used in extremely harshed environments such as railways. Under such conditions it provides
extra isolation against disturbances carried by the Mains.
4.4 Mix Mode & Walk-in Mode
 Under some circumstances DC and AC source can be combined. The sequence is defined by a user selectable set of
parameters. Start, control and exit functions are fully automatic.
 A specific example of Mix-mode is the Walk-in mode where the transfer from DC source to AC source is ramped up within
a fix and adjustable period of time.
 Setting for Walk-in mode and Mix-mode can be made through the T2S supervisor configuration file.
See Section 10, page 37 for more information on T2S supervisor.
Note: REG modules
Inverter modules carrying the TSI logo together with REG mark are modules working only with DC input.
Sinusoidal output is converted from DC and the module operates as a traditional inverter. EPC mode and the
boost are not available with REG modules.

12 – RBS 120VAC– User manual – v7.0
Building Blocks
5. Building Blocks
5.1 Inverter module
Bravo: 110 VDC / 120 VAC, 60Hz.
 The TSI Bravo is a 2500VA/2000W triple port inverter.
 The TSI inverter modules are hot swappable and hot pluggable.
 The module operator interface is LEDs showing converter status and
output power
 Fan is equipped with alarm and run time meter. The fan is field
replaceable.
 17.13” (D) x 4.02” (W) x 3.46” (H)
 11 lbs (5 Kg).

6. Accessories
6.1 T2S Interface
The T2S is an interface giving access to the TSI modules that are connected together in any TSI systems.
The T2S doesn’t perform any control or management of the TSI system. It can be removed, replaced or moved to another live
system without affecting neither the original TSI system operation nor the target system.
6.1.1 Parameters setting
The T2S interface is featured with a USB connector at the front. Connected to a laptop, it enables TSI system settings, modules
and phase assignments, and other various adjustments to allow TSI best fit with actual site conditions.
(Operation of T2S is described in separate manual available on request).
6.1.2 System diagnostic and troubleshooting
The T2S is featured with built-in user interface to allow on-line diagnostic through laptop.
Installers and maintenance technicians should always carry proper laptop to access/reconfigure the system on site.
6.1.3 On-the-fly monitoring
The T2S monitors max of 32 inverter modules.
The T2S is featured with
 3 outgoing alarms contacts.
 2 digital inputs.
 MOD bus.
 CAN bus (optional).
 Alarm monitoring.
 Record the latest 200 events. FIFO
Note: Operation of T2S is described in seperate manual available on request.
13 – RBS 120VAC– User manual – v7.0
Accessories

6.2 Catena
Catena GUI Interface is a powerful web based touch screen graphical display, it allows user to easily access and monitor the
system.
In addition to the touch screen display, user can also access to same GUI by using an Ethernet port which is present on the catena.
 Measures
• AC In
• DC In
• AC Out
 Alarms
• Major/Minor
• System Level
• Phase Information
• Module Information
 7’’ touchscreen
 Web browser with laptop (ETH)
 Height: 3U
14 – RBS 120VAC– User manual – v7.0
Accessories

6.3 Candis
The Candis is an optional interface allowing the user to get system running information on display. The definition settings available
on Candis are voltages, currents, frequency, inverter configured, and so on.
1
2
3
4
(Use a tip pen or a soft edge stick to push on
buttons 2 , 3 or 4)
1Display (2 lines provided to display information).
2Up button to scroll UP in the menus.
3Down button to scroll DOWN in the menus.
4Enter button to change display or validate modifications.
6.4 Surge Arresters
The mains (AC) supply of the modular inverter system shall be fitted with suitable Lightning surge suppression and Transient
voltage surge suppression for the application at hand. Manufacturer’s recommendations of installation shall be adhered. It is
advisory to select a device with an alarm relay for function failure.
Surge arrester(optional) is installed in the cabinet. (NOTE: Option not yet available)
Indoor sites are considered to have a working lightning surge suppression device in service.
 Indoor sitesMin Class II.
 Outdoor sites Min Class I + Class II or combined Class I+II.
15 – RBS 120VAC– User manual – v7.0
Accessories

7. RBS Design and Description
7.1 System Design
RBS is a cabinetized modular inverter specifically designed for clean and temperature controlled environments.
 Industrial grade design.
 For airflow, provisions are provided at Rear.
 Based on Bravo 110VDC/120VAC TSI module.
 Fully modular.
 Support redundant configurations.
 Support EPC mode.
 Cabinet NEMA 1 (IP 20).
 664.25 mm (H) X 482.30 mm (W) X 567.50 mm (D).
Please refer to the technical
drawings receive with your
cabinet for exact positioning!
16 – RBS 120VAC– User manual – v7.0
RBS Design and Description

7.2 System Description
RBS comes fully equipped with
 DC individual branch protection is provided for each three modules connected vertically (UL 489A).
 T2S interface shall be 2C version (High Voltage) with USB/ETH.
 Surge Arresters.
 AC Input/ AC Output on Bulk Terminals.
 Alarms and Remote ON/OFF Terminals.
Options
 Catena.
 Candis.
Catena
Fuse
RJ 45
Phase 1
Phase 2
Phase 3
AC OUT
Terminal
Alarm
RJ45
DC IN
Terminal
Remote
ON/OFF
AC IN
Terminal
Surge
Arresters
DC IN
Breakers
Front View Rear View
17 – RBS 120VAC– User manual – v7.0
RBS Design and Description

7.3 RBS Single Phase Configuration
A single phase system is 120VAC from L to N. Input and output are the same, made upon 2 wires + (PE) Ground.
System Designation Max Power
(kVA) Max power (KW) Max number of Modules
RBS-1-10-XX-04-1DC 10 8 4
RBS-1-10-XX-04-2DC 10 8 4
RBS-1-10-XX-04-4DC 10 8 4
* This configuration doesn’t use all available slots.
** Up to 2 modules can be allocated to redundancy.
System Designation
Single DC*** input Tightening Torque
(lbs/in)
Fuse or
Breaker Cable Min
RBS-1-10-XX-04-1DC 1x100 A 4 x 10 AWG 52 - 104
RBS-1-10-XX-04-2DC 2x50 A 2 x 10 AWG 52 - 104
RBS-1-10-XX-04-4DC 4x25 A 1 x 10 AWG 52 - 104
*** Refer Section 8.4.4, page 27
System Designation
AC Input AC Output
Tightening
Torque
(lbs/in)
Branch Protection Branch Protection
Breaker Cable Min Breaker Cable Min
RBS-1-10-XX-04-1DC 100 A 1 x 1AWG 100 A 1 x 1AWG 24.9-26.7
RBS-1-10-XX-04-2DC 100 A 1 x 1AWG 100 A 1 x 1AWG 24.9-26.7
RBS-1-10-XX-04-4DC 100 A 1 x1AWG 100 A 1 x 1AWG 24.9-26.7
18 – RBS 120VAC– User manual – v7.0
RBS Design and Description

7.4 RBS Split Phase Configuration
A split phase system*is 120VAC from L to N and 240VAC from L1 to L2 are phase shifted by 180 degree (upon request, it can also
be 208VAC. L1, L2 are phase shifted by 120 degree). Input and output are made upon 3 wires + (PE) Ground, cabling and phase
shift must match.
System Designation Max Power (kVA) Max power (KW) Max number of
Modules
RBS-2-20-XX-08-1DC 20 16 8**
RBS-2-20-XX-08-2DC 20 16 8**
RBS-2-20-XX-08-4DC 20 16 8**
* Also known as “Single Phase 240VAC” (including UL). Number of wires is always meaningful to distinguish from
other single phase.
** Number of modules must be even, with same number in each phase in order to comply with UL recommendations.
**** Up to 2 x 2 modules can be allocated to redundancy.
System Designation
DC***** Input Tightening
Torque
(lb.in)
Fuse or
Breaker Cable Min
RBS-2-20-XX-08-1DC 1 x 200 A 4 x 4 AWG 52 - 104
RBS-2-20-XX-08-2DC 2 x 100 A 2 x 4 AWG 52 - 104
RBS-2-20-XX-08-4DC 4 x 50 A 1 x 4 AWG 52 - 104
***** Refer Section 8.4.4, page 27
System Designation
AC Input AC Output
Tightening
Torque
(lb.in)
Branch Protection Branch Protection
Breaker Cable Min Breaker Cable Min
RBS-2-20-XX-08-1DC 100 A 1 x 1 AWG 100 A 1 x 1 AWG 24.9-26.7
RBS-2-20-XX-08-2DC 100 A 1 x 1 AWG 100 A 1 x 1 AWG 24.9-26.7
RBS-2-20-XX-08-4DC 100 A 1 x 1 AWG 100 A 1 x 1 AWG 24.9-26.7
19 – RBS 120VAC– User manual – v7.0
RBS Design and Description

7.5 RBS Three Phase Configuration
A Three phase system is 120VAC from L to N and 208 VAC from L1 to L2, L1 to L3, L2 to L3.
Input and output are made upon 4 wires + (PE) Ground, “Y” or “Star” connection.
All phases are phase shifted by 120 degree one to the other.
System Designation Max Power (kVA) Max power (KW) Max number of
Modules
RBS-3-30-XX-12-1DC 30 24 12 *
RBS-3-30-XX-12-2DC 30 24 12 *
RBS-3-30-XX-12-4DC 30 24 12 *
* Number of modules must be multiple of 3, with same number in each phase in order to comply with UL recommendations.
System Designation DC** Input Tightening Torque
(lbs/in)
Fuse or Breaker Cable Min
RBS-3-30-XX-12-1DC 1x300 A 4x2 AWG 52 - 104
RBS-3-30-XX-12-2DC 2x150 A 2x2 AWG 52 - 104
RBS-3-30-XX-12-4DC 4x80 A 1x2 AWG 52 - 104
** : Refer Section 8.4.4, page 27
System Designation
AC Input AC Output
Tightening
Torque
(lb.in)
Branch Protection Branch Protection
Breaker Cable Min Breaker Cable Min
RBS-3-30-XX-12-1DC 100 A 1 x 1 AWG 100 A 1 x 1 AWG 24.9-26.7
RBS-3-30-XX-12-2DC 100 A 1 x 1 AWG 100 A 1 x 1 AWG 24.9-26.7
RBS-3-30-XX-12-4DC 100 A 1 x 1 AWG 100 A 1 x 1 AWG 24.9-26.7
Note:
Sometimes three phase systems with 2 legs instead of three can be requested. They can be called 1P/6 KVA or 2P/12 KVA.
Effectively they are based upon same hardware than split phase (see 7.4, page 19) with 3 wires (L1-L2-N). Since phases are
shifted by 120 degree the L1 - L2 output voltage is 208VAC.
Three phase configuration can be connected to 240VAC L-L(138VAC L-N) sources. Refer to supplier for specific recommendations
and approval.
20 – RBS 120VAC– User manual – v7.0
RBS Design and Description