Installation
4
WARNING
Before installation or maintenance work can begin, the system's main switch must be
switched off and measures taken to prevent it being switched on again. If this instruction is
not observed, touching live parts can result in death or serious injury.
4.1
Line-side connection
The LOGO!Power power supplies are power packs acc. to safety class II (without protective
conductor or equivalent without PE). LOGO!Power are designed for connection to a 1-phase
AC supply network (TN or TT system in accordance with VDE 0100 T 300 / IEC 364-3) with
rated voltage 1-phase 100-240 V AC, 50/60 Hz or to a power supply with 110-300 V DC .
Figure 4-1
Line connection
The connection of power supply network is made via the terminals L1 and N (see Fig. 4-1)
and must be established in accordance with IEC 60364 and EN 50178. A protective device
(miniature circuit breaker or circuit breaker) and a disconnection unit for the power supply
must be provided. A residual current circuit-breaker must not be used as the only protective
measure against indirect contact; this applies to the entire supply system that is protected by
the residual current operated circuit breaker.
Line-side protection (IEC 898) to be implemented upstream:
● Circuit breaker characteristic C, from 10 A or
● circuit breaker characteristic B, from 16 A
Other country-specific regulations may have to be observed when installing the device.
LOGO!Power
Operating Instructions, 02.2011, C98130-A7560-A999-1-7619
17
SIEMENS [ Siemens Semiconductor Group ]
