Din Rail Input Modules; Example - Velbus VMB4RYLD Installation Manual

VELBUS INSTALLATION GUIDE

DIN RAIL INPUT MODULES

Usually, the 8 channel PCB style user interface,
VMB8PBU, would be installed directly behind banks of
push buttons that you intend your users to operate.
In order to make use of long cables and/or to replace
an existing teleruptor installation, the VMB7IN is
needed. This is a 7-channel input module for mounting
on a DIN rail. This module does not offer feedback to
the switches, but does have status LEDs in its body.

EXAMPLE

In a home where one wants to have just twenty automated lights, one would
need one VMBSMPS power supply and five VMB4RYLD relay modules in the
electrical cabinet.
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