Leroy-Somer — Electrical checks before first start
Installation · Terminals / insulation
From a Leroy-Somer manual — check it applies to your exact model before use.
Procedure
- Check terminal links match the required voltage (see diagram).
- Check terminal plate nuts are properly tightened.
- Check protection devices are not tripped.
- Check insulation between phases and earth with a 500 V d.c. megger.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 10 megohms min cold (new)
- 1 megohm min
Source: Leroy-Somer manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.