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Download Manual1-800-458-4001
Supplementary Instructions for Type DB Air Circuit Breakers Amptector® Solid State Trip System
Part/Manual #: MB3123C
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.
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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.