ABB i-bus
®
KNX
Mounting and installation
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Product Manual | EN | MG/S 11.100.1.1 | 9AKK108467A5941 Rev. B 19
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5
Mounting and installation
5.1
Information about mounting
DANGER – Severe injuries due to touch voltage
Electric feedback from different phase conductors can cause contact voltages and lead to serious
injuries.
▶
Only operate the device in an enclosed housing (distribution board).
▶
Disconnect all phases before working on the electrical connection.
The device can be mounted in any position as required on a 35 mm mounting rail.
The connection to the bus (ABB i-bus
®
KNX) is made using the bus connection terminal supplied.
The terminal designation is located on the housing.
The connection to Modbus is made via the supplied 3-pole terminal block with screw locking (RS-485).
The terminal designation is located on the housing.
Note
The maximum permissible current consumption on a KNX line must not be exceeded.
▶
During planning and installation, ensure that the KNX line is correctly dimensioned. The device has a
maximum current consumption of 22 mA.
Note
A repeater is required if you are installing more than 32 server devices. This limit is specified by the
Modbus protocol.