Skip to main content
Emergency Service Available 24/7/365
Back to Search

Square D Masterpact NW12 1250A with Micrologic 5.0 (LSI) — Specifications

Square D / Schneider Electric Masterpact NW12 1250A air circuit breaker configured with Micrologic 5.0 electronic trip unit providing LSI protection. Drawout mounting, UL/IEC dual rated. Includes protection settings, coordination curves, wiring diagrams, and maintenance guide. Available from Voyten Electric — new, remanufactured, and reconditioned.

Download PDF

PDF

Download Manual

Need the replacement part?

Voyten Electric stocks parts for this equipment — including EOL and discontinued models.

1-800-458-4001

EOL & Legacy Equipment Support

Is your Square D equipment discontinued or end-of-life? Voyten Electric specializes in sourcing, testing, and shipping replacement parts for legacy electrical equipment. We stock circuit breakers, trip units, motor controls, and accessories for models no longer manufactured.