1 Test switch RTXP 24
Figure 25: protection relay and the test switch RTXP 24
4.3.9 Mounting lens sensors for an arc protection system
Arc protection is used to detect arc situations in air insulated metal-clad
switchgear.
The arc protection system determines where in the switchgear cubicle the optional
lens sensors are installed.
1. Drill a hole (Ø 10 mm) in the wall of the supervised space.
A 3.5 mm
B 10 mm
C ∅ 9.5 mm
D 19 mm
Figure 26: Dimensions of the lens sensor
Mounting
1MRS757641 G
42 620 series
Installation Manual
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