Terminal No. Function
N, L, PE 230 V AC power supply (SUPPLY):
Neutral conductor, phase 230 V AC, PE (ground conductor)
PE on grounding screw M4 PE (ground conductor) with ring cable lug on device cage
Connection to the power supply
Requirements for the connection cable
As the system centre does not have an integrated disconnecting device in the form of a power switch, the
followingmustbeimplemented:
a) a switch or circuit breaker must be installed in the system or building installation,
b) this must be suitably positioned and easily accessible for the user and
c) this must be labelled as disconnecting device for the device.
7.1.2 Terminal assignment of the 230 V AC digital inputs
The two digital inputs are designed for installation monitoring, for special inputs and as measuring points (meter
inputs) and are located at the bottom on the device.
Warning about dangerous electrical voltage! Instruction for protective earthing: The ground
conductor must also be connected to the grounding screw M4 on the rear side of the device cage
using a ring cable lug.
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•
In order to fuse the mains power line, a circuit breaker with the following characteristics must be used:
Rated current for 230 V AC: 6 A
Tripping characteristic (typical): B
Warning about dangerous electrical voltage! Danger of electric shock! BEFORE connecting and
disconnectingitmustbecheckedthatno voltage is presentatthe230VACdigitalinputs!
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