Din Rail Relay Modules - Velbus VMB4RYLD Installation Manual

VELBUS INSTALLATION GUIDE

DIN RAIL RELAY MODULES

Relay modules can
switch lighting, sockets,
LED power supplies and
much more, since they
can handle currents of
up to 16 A (AC resistive)
per channel. For the
VMB4RYLD the total
current across the
whole module is also
maximum 16 A. For
devices that consume large currents, we recommend adding a contactor
between the module and the load.
The VMB4RYLD is a 4-channel voltage-out relay module with common neutral
poles, where only the live pole is switched on each channel. The live and
neutral wires, normally coming from an isolated and protected circuit breaker,
are simply connected to the input contacts of this module, which makes them
available as 4 relay outputs.
The VMB4RYNO has 4 single pole single throw dry programmable relay
contacts. As mentioned above, each channel can handle currents of up to 16 A
(AC resistive).
Each 4-channel relay module has (under the
protective cover) four push buttons for directly
controlling the relay, mainly for test purposes.
To control heating and cooling systems with a
Velbus system, you will need to connect a separate
relay channel to each of your heating or cooling
functions, motorised valves, wax thermal
actuators and other devices.
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