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5.2
Electrical connection
For the electrical installation, a multi-conductor cable should be used to obtain a good seal
with the cable gland. The connector is provided with a PG 7 cable gland, suitable for a 4.5
to 7 mm outside diameter cable.
Terminal 1: Common
Terminal 2: Normally open (NO)
Terminal 3: Normally closed (NC)
Earth terminal: Not connected
conexión
The electrical installation should provide a fuse or circuit breaker to protect the reed switch
from overloads.
When installing the connector, make sure that the cable gland closes over the cable and that
the connector with the rubber seal is well screwed down to maintain its IP rating.
Make sure that the contact rating is not exceeded (see section 17.2 in page 21). If high loads
are to be switched, use an auxiliary relay.
When using inductive loads, such as relays or electro-valve coils, surge arresters should be
installed to protect the reed contacts (VDR in case of AC supply and free willing diodes in
case of DC supply).
9
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