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ABB i-bus
®
KNX
Mounting and installation
5.4
Connecting the Sealed Lead Acid Batteries SAK X
The Sealed Lead Acid Batteries SAK2, SAK7, SAK12 and SAK17 are used to back up the EIB / KNX
system voltage in combination with the Uninterruptible EIB/KNX Power Supply SU/S 30.640.X. The service
life of the Sealed Lead Acid Batteries is 5 years.
Up to two Sealed Lead Acid Batteries can be connected in parallel to the SU/S 30.640.X. Two identical
Sealed Lead Acid Batteries must be used in this case. Cable Set KS/K 4.1 must be used when connecting
a single Sealed Lead Acid Battery to the SU/S 30.640.X. When two Sealed Lead Acid Batteries are
connected, use Cable Set KS/K 4.1 for one battery and Cable Set S/K 2.1 for the other battery.
Cable Sets KS/K 4.1 and KS/K 2.1 are not supplied with the device.
•
Order number for KS/K 4.1: GHQ6301910R0001
•
Order number for KS/K 2.1: GHQ6301910R0011
Cable Set KS/K 4.1 includes a replaceable fuse and a temperature sensor for temperature-controlled
charging voltage adjustment; Cable Set KS/K 2.1 includes a replaceable fuse.
ATTENTION –
When connecting one or two batteries connected in parallel, the temperature sensor must always be
connected.
When connecting the SAK2, SAK7, SAK12 and SAK17 batteries with the Cable Sets KS/K 4.1 and KS/K
2.1, make sure that the colored cable cores are wired correctly.
Connecting the KS/K 4.1 to the Power Supply SU/S 30.640.X
Fig. 4: Connecting the KS/K 4.1 to the Power Supply SU/S 30.640.X
KS/K 4.1
(1st battery)
Tab. 6: Connecting the KS/K 4.1 to the Power Supply SU/S 30.640.X
20 9AKK107992A4580_EN Rev. A | SU/S 30.640.2
Note
Terminal 7 (Temp)
White (+)
Temp. sensor
Terminal 8 (150 mA)
Terminal 9 (Code 650 mA)
Yellow (-)
Black (-)
Temp. sensor
Battery GND
Terminal 10 (12 V)
Red (+)
Battery 12 V
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