Leroy-Somer — Connecting the power supply cables to the terminal block
Installation
From a Leroy-Somer service manual — check it applies to your exact model before use.
Before you start
- It is compulsory to earth the motor
- Check no foreign body has entered the terminal box
Procedure
- Fit the cables with connectors suitable for the cable cross-section and terminal diameter.
- Crimp connectors in accordance with the connector supplier's instructions.
- For round connectors (LSE/FLSE 80 to 160), fit motor cable connector, power supply connector, terminal washer, Y or D link and Serpress brake nut in order.
- Tighten the nuts to the recommended torque.
- For slotted terminals (LSE 180-280), lay the mains cable in the slot under the connector and tighten to the recommended torque.
- Check that no nut, washer or foreign body has fallen into the terminal box or come into contact with the winding.
- Earth the motor inside the terminal box and at the external terminal.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Terminal block and slotted terminal tightening torques per tables
- Max 2 connectors per terminal
Source: Leroy-Somer service 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.