Supplementary Instructions for Type DB Air Circuit Breakers Amptector® Solid State Trip System

Part/Manual #: MB3123C

Westinghouse Circuit Breakers Trip Units

Westinghouse Electric electronic trip unit instruction and installation manual (MB3123C). Covers installation, operation, and maintenance procedures. Free PDF download from Voyten Manuals — replacement parts and expert support available from Voyten Electric at 1-800-458-4001.

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 Westinghouse 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.

Call for Parts Request Quote