V2.00
19837_EDEBD
A0227-2620-1_EN
11
Connection
3
Connecting the multicomp
3.1
Installation and assembly
The applicable VDE regulations must be observed during installation!
Before the device is connected to the power supply, check whether the local power
supply conditions comply with the specifications on the nameplate . Incorrect connec-
tion may result in the destruction of the device . A different power frequency influences
the measurement accordingly .
The device must be connected in accordance with the connection diagram .
The power supply input of systems that are at risk from lightning strikes must be
equipped with suitable lightning protection .
CAUTION
The control voltage as well as the applied measuring voltage of the device must be pro-
tected by means of a back-up fuse .
When connecting the current transformers, the energy flow direction and the correct
assignment to the voltage path must be observed!
NOTE
When connecting the phase (L1) to terminal 1 and the neutral conductor (N) to terminal 2
(Ph-N 100V – 240V+/-10 % 50Hz/ 60 Hz/DC) the safety device and the disconnector in the
supply line to terminal 2 (N) are not required .
The safety device and the disconnector to terminal 2 (N) are only required for the follow-
ing connection variants:
Alternating voltage:
Terminal 1 (L1) and terminal 2 (L2):
US1 Phase-Phase 100V - 240V +/-10% 50Hz/60 Hz
Direct voltage:
Terminal 1 (+) and terminal 2 (-):
US1 100V - 240V +/-10% DC
Connection variants of the power supply