Compatible — Mechanical Interlock Replacement

For these models: 40--630 Amp, 800--1250 Amp.

Procedure

1. 1. Remove interlock mounting fasteners
2. 2. Separate interlock assembly from enclosure
3. 3. Install new interlock assembly

Source: manual:mp5974.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.