Chapter 8 Electrical Installation
Mini-Switch LB 471
8.1 Connecting Evaluation Unit and Detector
The detector is connected via a 2-wire cable (2 x 1 mm²). In a wall
housing one has to observe the permitted cable cross-section of
the screwed cable gland. At ambient temperatures >70°C the in-
stalled cable has to be protected to ensure that the temperature
limits of the cable will not be exceeded. When installing the con-
nection cable, make sure that no water can get inside the connec-
tion room via the cable. After connection, the connection room has
to be locked again carefully and the cable gland has to be sealed
well.
The LB 471 limit switch is available in three different versions:
In a 19" rack
In a wall housing
In a cassette with terminal block for any 19" rack.
The respective connection diagram is shown on page 137 in the
Appendix.
On the following pages we will explain how to connect different
detector types separately and in detail.
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