Schneider Electric 3.0A, 2.0A, and 6.0A, 5.0A manual Trip Unit Installation, 30-EN

Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Section 4—Trip Unit Replacement

48049-136-05 Rev. 01, 07/2012

ENGLISH

Trip Unit Installation

1.Inspect trip unit connector pins and surfaces. If there is any damage, misaligned pins, or contamination, stop installation and contact the local sales office for factory authorized service.

2.Inspect trip unit mounting base on the circuit breaker. Clear any debris from area and check that all accessory wiring is properly routed for the trip unit being installed. If there is any damage or contamination, stop installation and contact the local sales office for factory authorized service.

3.For Masterpact NW circuit breaker only: Manually depress trip unit interlock (A) and hold it in place during steps 4–6 below.

4.Align guide rail (B) on bottom of trip unit with guide rail slot (C) on trip unit mounting base in circuit breaker and gently slide the trip unit in until it stops.

NOTE: The Masterpact NT and NW trip unit mounting bases are shock mounted and therefore can flex slightly.

Figure 45: Install Trip Unit

Masterpact NW Circuit Breaker

06135453

A

06135451

C

B

NOTICE

HAZARD OF EQUIPMENT DAMAGE

Check installation of trip unit to assure proper connections and seating.

Failure to follow this instruction can result in equipment damage or improper circuit breaker tripping.

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