RCT Power 3.8 User manual

MANUAL
Power Battery 3.8 / 5.7 / 7.6 / 9.6 / 11.5
EN
EN

Manual 3.8 / 5.7 / 7.6 / 9.6 / 11.5
I
Manufacturer
RCT Power GmbH
Line Eid Str. 1
78467 Constance, Germany
Phone. Tech. Service: [phone]
Mail: info[at]rct-power.com
Copyright
© RCT Power GmbH 2021
Subject to technical changes without prior notice.
No part of these operating instructions Power Battery 3.8 / 5.7 / 7.6 / 9.6 / 11.5 may be
reproduced in any form (photocopy, microfilm or any other process) or processed, duplicated or
distributed using electronic systems without the written consent of the. In the event of
infringement of this provision, we reserve the right to claim damages.
The reproduction of common names, trade names, brand names, product designations, etc. in
these operating instructions Power Battery 3.8 / 5.7 / 7.6 / 9.6 / 11.5 does not entitle the user to
consider and use such names as free within the meaning of trademark and brand protection
legislation
document number:
01/2022

Manual 3.8 / 5.7 / 7.6 / 9.6 / 11.5
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Table of content
1Overview ......................................................................................................................................1
1.1 Scope of this document........................................................................................................................................... 1
1.2 Intended use............................................................................................................................................................ 1
1.3 Explanation of symbols............................................................................................................................................ 2
1.4 Warranty and liability.............................................................................................................................................. 3
1.5 Declaration of conformity ....................................................................................................................................... 3
1.6 Application Example................................................................................................................................................ 4
1.7 Scope of delivery ..................................................................................................................................................... 5
1.7.1 Power Battery Master ............................................................................................................................................. 5
1.7.2 Power Battery Stack ................................................................................................................................................ 6
1.8 Module description ................................................................................................................................................. 6
1.8.1 Power Battery Master ............................................................................................................................................. 6
1.8.2 type plate................................................................................................................................................................. 7
1.8.3 Power Battery Stack ................................................................................................................................................ 7
2Safety instructions.........................................................................................................................8
2.1 Symbols ................................................................................................................................................................... 8
2.2 Personnel and qualifications ................................................................................................................................... 8
2.3 Basic safety instructions .......................................................................................................................................... 9
3Mechanichanical Assembly..........................................................................................................10
3.1 Preparing the installation site ............................................................................................................................... 10
3.2 Setting up the battery system ............................................................................................................................... 12
4Electrical Installation...................................................................................................................15
4.1 Earthing the components ...................................................................................................................................... 15
4.2 Establishing a network connection........................................................................................................................ 16
4.3 Establishing the DC connection ............................................................................................................................. 17
4.4 Preparing the connection to the Power Storage ................................................................................................... 17
4.5 Aligning the Power Battery and attaching it to the wall ....................................................................................... 18
4.6 Connection to the Power Storage ......................................................................................................................... 18
4.6.1 Power Storage DC 4.0 / 6.0.................................................................................................................................... 19
4.6.2 Power Storage DC 8.0 / 10.0.................................................................................................................................. 19
4.6.3 Power Storage AC.................................................................................................................................................. 19
5Commissioning............................................................................................................................19
6Operation ...................................................................................................................................20
6.1 Normal operation .................................................................................................................................................. 20
6.2 Troubleshooting .................................................................................................................................................... 20
6.3 Periodic maintenance............................................................................................................................................ 20
7Storage, cleaning and disposal.....................................................................................................21
7.1 Storage .................................................................................................................................................................. 21
7.2 Cleaning................................................................................................................................................................. 21
7.3 Disposal ................................................................................................................................................................. 21
8Technical Data.............................................................................................................................22

Manual 3.8 / 5.7 / 7.6 / 9.6 / 11.5
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1Overview
1.1 Scope of this document
This instruction manual is an important part of the battery system Power Battery 3.8 / 5.7 / 7.6 / 9.6 / 11.5. It contains
information about working safely and efficiently with the battery system.
Always keep the operating instructions near the battery system.
Persons who carry out maintenance or service work on the battery system must always have access to the instructions and
information in this operating manual.
Read the operating instructions before installing the system. Pay particular attention to the safety instructions.
This operating manual contains information on the installation, wiring, commissioning and operation of the battery system.
This document does not replace any laws, regulations, rules, standards or conventions.
1.2 Intended use
The battery systems Power Battery 3.8 / 5.7 / 7.6 / 9.6 / 11.5 are stationary battery systems with lithium-iron-phosphate
accumulators (LiFeP04).
A Power Battery in combination with a Power Storage forms a Power Storage System that stores the generated PV energy
intelligently and highly efficiently and makes it available to the consumer again according to economic aspects.
The Power Battery has not been developed for other applications or connections to other devices.
Any use that differs from the intended use is considered misuse. RCT Power GmbH is not liable for any damage resulting
from misuse.
Any misuse will terminate the manufacturer's warranty, guarantee and general liability.

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1.3 Explanation of symbols
The following symbols may appear on the type plate and/or on the unit. These symbols must always be observed:
Observe the operating instructions!
Acid traces in the eyes or on the skin clean with lot of clear water.
Then consult a doctor immediately!
Wash contaminated clothing with plenty of water.
Fire- extinguisher for abatement from initial fire.
Warning!
Metal parts of the batteries are always under voltage.
Do not short-circuit the batteries!
In case of a short-circuit, may flow very high currents and cause burns.
By Touching conductive parts can cause cardiac arrhythmia and shock.
Explosion risk!
It is strictly forbidden to clean with synthetic cloths or a feather duster. Otherwise there is the risk of
electrostatic charging or discharging.
Electrolyte is highly corrosive!
In normal operation, contact with the electrolyte is not possible.
In the case of destruction of the housing, the liberated bound electrolyte is just as corrosive as liquid
electrolyte.
Warning of battery hazards.
Battery must not get wet.
Defective battery must not be operated.
Caution!
Children should be keep away from the battery system.
This product must not be disposed of as normal household waste, → Chapter 7 "Storage, cleaning
and disposal", page 21
CE-declaration of conformity

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1.4 Warranty and liability
The warranty and liability shall be governed by the terms and conditions set out in the contract.
Limits of warranty
Warranty and liability claims of any kind are excluded by one or more of the following causes:
•Improper use or installation of the product.
•- Installing or operating the product in an unauthorised environment.
•- Ignoring relevant safety regulations at the place of use, during installation and commissioning.
•- Ignoring safety notices and instructions in all documents relevant to the product.
•- Installing or operating the product under incorrect safety or protective conditions.
•- Modifying the product or installing software without authorisation.
•- Defects in the product caused by neighbouring devices or devices operated outside the permissible limits.
•- Damage due to force majeureSchutzrechte
Property rights
All rights to drawings, software and other documents as well as any power of disposal, such as copying and passing on
rights, are held by RCT Power GmbH .
Storage
RCT Power GmbH does not accept any warranty for damage caused by incorrect storage, → chapter 7.1 "Storage", page 21.
Transport
We would like to point out that improper transport does not entitle the user to any replacement or warranty claims. In any
case, please consult RCT Power GmbH before transporting the system.
1.5 Declaration of conformity
The company RCT Power GmbH hereby declares, that the described battery system in this document is in accordance with
the essential requirements and the other relevant provisions of the guidelines below.
•Directive 2014/35/EC (Low Voltage Directive )
•Directive 2014/30/EC (Electromagnetic Compatibility, EMC)
•Directive EU 2011/65/EU (RoHs-directive
For a detailed EU declaration of conformity, please visit: http://www.rct-power.com.

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1.6 Application Example
Abb. 1: Example of a PV system with Power Battery, Power Switch and Power Sensor
Pos.
Beschreibung
Bemerkung
A
PV-Generator
Monocrystalline silicon; polycrystalline silicon and thin-film without grounding and
protection class II
B
Battery
Power Battery 3.8 / 5.7 / 7.6 / 9.6 / 11.5
C
Inverter
Power Storage 4.0, 6.0, 8.0, 10,0
D
Household
Household appliances
E
Power Switch
In the event of a mains failure, the system switches to island mode
F
Power Sensor
Current sensors for recording the alternating current powe
G
Utility grid
TT, TN-C, TN-S, TN-C-S ( gilt für Gesamtsystem )

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1.7 Scope of delivery
Before shipment our products are checked for proper condition.
Despite careful packaging, transport damage can occur, for which the transport company is generally responsible.
If you notice any damage to the packaging or the PowerBattery, please immediately inform the transport company.
Every Power Battery consists of 1 Power Battery Master and 2 to 6 Power Battery Stacks:
Version Power Battery
number Power Battery Master
number Power Battery Stacks
3.8 kWh
1 Karton
2 Kartons
5.7 kWh
1 Karton
3 Kartons
7.6 kWh
1 Karton
4 Kartons
9.6 kWh
1 Karton
5 Kartons
11.5 kWh
1 Karton
6 Kartons
1.7.1 Power Battery Master
1
2
3
4
5
6
Pos.
Beschreibung
1
1x Power Battery Master
2
1x Wall bracket used to fix the upper part of the battery onto the wall
3
2x Handle
4
1x base plate (adjustable), with earth protection connector
5
1x Manual Power Battery (this document)
6
1x Accessory packaging with:
- 1x PV-Stick + (Weidmüller)
- 1x PV-Stick - (Weidmüller)
- 1x Terminating resistor (RJ 45)
- 1x Patch cable RJ 45/Cat5e 5m
- 1x Ring terminal (for 6mm² cable) for grounding

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1.7.2 Power Battery Stack
1
2
Pos.
desscription
1
1x Power Battery Stack
2
1x Patch cable RJ 45/Cat5e 15 cm
1.8 Module description
1.8.1 Power Battery Master
The DC cables to the power storage and to the lowest
stack are already attached to the master at the factory.
1
DC cable (+) to the Power Storage
2
DC cable (-) to the Power Storage
3
Connector for DC cable (-) from top stack
4
RJ45 socket for network cable to Power Storage
5
PE connection for protective conductor
6
On / Off switch
7
Openings for stacking on the top stack
8
LED status display
9
Type plate
10
RJ45 socket for network cable to top stack
11
DC cable (+) to the bottom stack

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1.8.2 type plates
The type plates show the serial number (1) of the component, as well as information (2) on the voltages occurring in the
component and the IP protection class.
Explanation of symbols → Chapter 1.3 "Explanation of symbols", page 2.
1.8.3 Power Battery Stack
1
DC cable to the stack above, at the top stack to the master
2
RJ45 socket for network cable to stack above it
3
PE protective conductor
4
Connector for DC cable from stack below,on the lowest stack
from the master
5
type plate
6
RJ45 socket for network cable to the stack below,at the lowest
stack for the terminating resistor
7
Openings for stacking on the stack below, on the bottom stack on
the base plate

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2Safety instructions
2.1 Symbols
Safety-relevant instructions are marked in this document with the following symbols and signal words:
Danger to life or danger of serious bodily injury!
Failure to comply may result in death or serious bodily injury
•Counter-measure…
Risk of injury!
Failure to comply may result in bodily injury!
•Counter-measure…
Risk of injury!
This symbol indicates an immediate danger with a low level of risk which, if not avoided, could result in minor or
moderate injury.
•Counter-measure…
Risk of property damage!
Non-observance may result in material damage (loss of time, loss of data, system defect, etc.)!
2.2 Personnel and qualifications
Qualified personnel eligible to perform the tasks described in this document have following skills and knowledge:
•They are trained in installing electrical devices.
•They understand the functions of a battery system and know how it operates.
•They are familiar with lithium iron phosphate (LiFePO 4) batteries.
•They have read and understood the documents shipped with the device.
•They know and use the appropriate tools and equipment to perform the work.
•They are familiar with all applicable laws, regulations, standards and codes for electrical devices.
•They are familiar with safety requirements and safety-related guidelines for electrical devices.
•They are familiar with national work protection laws and regulations.
•They know and use the appropriate personal protective equipment.

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2.3 Basic safety instructions
A correctly mounted Power Battery 3.8 / 5.7 / 7.6 / 9.6 / 11.5 is intrinsically safe.
Risk of injury from electric shock!
Inside the components of the Power Battery there are elements under high voltage which can also generate high
currents! In the event of a short circuit, very high currents can flow and cause burns. Touching conductive parts can
cause cardiac arrhythmia and shock.Gehäuse nicht öffnen!
•Only carry out electrical work when the power is off.
•Ensure that cables are not damaged.
•Use only suitable protective and measuring equipment.
•Do not operate defective cables or components with damaged housings.
•Do not short-circuit batteries.
•Ensure that no liquid enters the cables and housing and that the battery system is not exposed to condensing
moisture.
•Do not place tools or metal parts on the components.
•Ensure correct earthing when mounting the components.
•Do not subject components to pressure or impact. In particular, ensure that they do not fall over or drop during
assembly.
•Carry out all electrical installations in accordance with local and national standards and directives.
•Do not remove the type plate.
Fire hazard due to flammable substances!
The Power Battery is not approved for explosive environments.
•Ensure that no explosive gases, liquids or other substances are stored or used in their vicinity.

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3Mechanichanical Assembly
3.1 Preparing the installation site
Risk of injury due to electric shock and heavy weight!
Inside the components of the Power Battery there are elements under high voltage which can also generate high
currents! Metal parts of the batteries are always live. In the event of a short circuit, very high currents can flow and cause
burns. Touching conductive parts can cause cardiac arrhythmia and shock. If set up improperly, the battery system can
tip over and cause injuries. The weight of a stack is more than 18 kg.Montage und elektrischen Anschluss des
Batteriesystems nur durch qualifizierte Elektrofachkraft.
•Do not install the Power Battery in rooms where there is a risk of explosion.
•Make sure that the electrically conductive surfaces of the Power Battery are earthed.
•Use a wall bracket to secure the Power Battery against falling over.
•Do not subject components to pressure or impact. In particular, ensure that they do not fall over or drop during
installation.
•Carry out all electrical installations in accordance with local and national standards and directives.
•Do not operate a damaged power battery
Possible power reduction of the Power Battery!
•Do not cover the power battery, especially the top.
•Keep clearances to ensure cooling by convection.
•Operate or store the Power Battery only between +5 °C and +40 °C.

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Ensure that the mounting surface is made of flame-retardant material.
Do not install the battery system in explosive areas and keep it away from
flammable materials.
Ensure that there are no corrosive gases at the installation site.
The battery system is only permitted for indoor use.
Protect the battery system from direct heat radiation (e.g. sun, heating, etc.).
Following requirements must be fullfilled::
•Indoor installation, air-conditioned
•Ambient temperature 5 - 40 °C
•Relative humidity 5 - 85 %, non-condensing
•Protect from dirt, dust and ammonia gases
The mounting surface must be firm and able to bear the weight in the long term.
The selected location must be easily and safely accessible at all times without
additional aids such as ladders or scaffolding.
Install battery system in upright position, and not in rooms and areas where
animals are kept.
Maintain minimum distances to allow sufficient free convection.
When a predefined temperature threshold is reached, the charging and
discharging power of the battery is automatically reduced linearly.
Installation in a closed cabinet is prohibited.
Ensure that the system has sufficient convection and is in a suitable
installation location.

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3.2 Setting up the battery system
Overview
1
Power Battery Master
2
Power Battery Stack
3
Wheels of base plate
4
Base plate
5
pedestal adjustable
The battery system is subsequently
•plugged together on its base plate (4)
•wired
•screwed tot he wall
Place the base plate at the location where the Power
Battery is to be placed later. The side with the
protective conductor facing the wall.
Keep sufficient distance to the wall for installation.

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Set up stacks
Place a power battery stack on the base plate with the
enclosed mounting handles so that the connections
face the wall.
If the stack is set up correctly, it is automatically
centred.
Ensure that no cables are pinched during installation
and that the components of the Power Battery are
parallel to the ground.
Place another power battery stack on top of the
previous one so that both are parallel to each other.
If the stack is set up correctly, it is automatically
centred.
Keep adding more stacks until all power battery stacks
of the battery system have been built up.

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To fix the wall bracket, remove the two screws on the
top stack (screw head preferably Torx T20).
Mark the drill holes for the wall bracket
Mount the wall bracket on the top Power Battery Stack
with the two screws (1).
Carefully push the battery system towards the wall(2).
Mark the drill holes vertically in the centre of the
slotted holes in the wall bracket.
Screwing to the wall is only done after the battery system
has been wired, → chapter 4.5 "Aligning the power battery
and attaching it to the wall", page 18.
Place the Power Battery Master on the top Power
Battery Stack so that the DC cables (red and blue)
remain free and are not pinched.

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4Electrical Installation
4.1 Earthing the components
Risk of injury from electric shock
Inside the compoents oft he Power Battery there are elements under high voltage which can also generate high currents!
Grounding faults can lead to electric shock!
•Assembly and electrical connection of the battery system only by qualified electricians!
•Ensure correct earthing of all metallic components!
In the adjacent drawing, the permanently attached DC cables
have been omitted for the sake of clarity.
Connect the protective conductor (1) of the stacks to the
protective conductor connection (2) of the stack mounted
above, starting with the protective conductor (3) of the base
plate.
The protective conductor connection (4) of the base plate must
be connected to an equipotential bonding bar on site.
Protective conductor connection in detail
Tighten the nuts of the PE connections with 2.5 Nm.

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4.2 Establishing a network connection
In the adjacent drawing, the permanently attached DC cables
have been omitted for the sake of clarity.
Use the enclosed patch cables and the terminating resistor
for communication between the individual stacks.
Connect the top stack to the bottom RJ-45 connector (1) on
the Power Battery Master.
Connect the other stacks to the stack above (2).
Provide the bottom connection of the lowest stack with the
terminating resistor (3).

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4.3 Establishing the DC connection
The Power Battery Stacks are connected in series.
The Power Battery Master is therefore connected to the top
and bottom stack.
Connect the DC cable (1) of the Power Battery Master to
the connection socket (+) of the lowest stack. It is advisable
to run the cable between the housing and the cables of the
stacks.
Connect the DC cables (2) of the remaining stacks to the
connection socket (+) of the stack above.
Connect the DC cable (2) of the top stack to the connection
socket (-) of the Power Battery Master.
4.4 Preparing the connection to the Power Storage
The DC cables (colours red and blue) to the Power Storage are already mounted on the Power Battery Master at the factory.
Make sure that they are not pinched during the following steps.