Installation
21
Maintenance socket isolator 8571/51
eng
li
sh
8.2.2 Lead connection
When routing in and connecting cable and leads, make sure that only cables and glands are
used which are specially tested and certified in accordance with the EC-Type Examination Cer-
tificate.
Unused entry holes are to be sealed with stopping plugs specially tested and certified in accor-
dance with the EC-Type Examination Certificate.
Excessive pulling on the components can negatively influence the explosion protection.
1 or 2 leads can be connected into a connection terminal. If single-wire leads are employed, both
leads must possess identical cross-sections as well as be manufactured of the same material.
The leads may be connected without performing any preparatory work
.
Lead connection for wall-mounting socket 8571/11
• Open the terminal chamber cover.
• Guide the lead through the cable entry and into the terminal chamber.
• Remove the insulation jacket from the lead end.
• Clamp the stripped lead end of the wire to the corresponding terminal clamp.
ATTENTION: The stripped lead ends must be completely inserted under the terminal
clamping plate!
• Correctly orient the leads. The terminal clamps must not be subjected to tension (pulling
forces).
• Tighten the cap nut of the cable entry.
• Carefully replace the enclosure cover and screw it in place.
Dimensions [mm]
A
B
Main operating contacts
200
12
Auxiliary contacts
200
6
Table 8-1: Dimensions for stripping leads
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