MicroVersaTrip PM electronic trip

Interrupting rating: 100 kA @ 480 V

LSIG protection (Long, Short, Instantaneous, Ground)

Features:​ Draw-out carriage, racking test/run positions, communications via trip unit, adjustable thresholds.

Materials & Structure:​ Glass-reinforced thermoset casing, silver-tungsten contacts, stored-energy spring mechanism, insulated bus stabs.

Working Principle:​ Trip unit measures current via CTs; on fault exceeds setting, releases latch, spring opens contacts, arc quenched in chambers.

Installation:​ Bolt to switchgear bus, align draw-out rails, torque primary connections, calibrate trip unit with GE software.

Precautions:​ Only rack in/out with door interlock satisfied; annual IR scan; never bypass trip unit; test mechanism every 3 years.