Attachment 2 - 50VCP-W50C Breaker - Photos.pdf

This document set comprises photographs and technical specification details for a Cutler-Hammer medium-voltage power circuit breaker assembly, model SJO1 (150VCP-W50 C).

The primary equipment documented is an Eaton Cutler-Hammer vacuum circuit breaker rated at 17.5 kV maximum voltage with a continuous current capacity of 1200 A RMS at 60 Hz. Key electrical specifications include a short-circuit current rating of 50 kA RMS (with -dc component at 57%), a close and latch current of 139 kA peak, and an interrupting time of 50 milliseconds. The breaker features three vacuum interrupter chambers with red operating handles visible in the assembly photographs. Additional components shown include control voltage equipment rated 125 Vdc/ac, close control voltage range of 100-140 Vdc, and trip control voltage range of 70-140 Vdc. The device carries serial number 03084859 (or 0306N58126 on related units shown) and weighs 460 pounds. Associated component data includes WL35123C vacuum vessels and instruction book number 32-255-1G. The equipment is manufactured in the USA and requires review of instruction materials before installation, operation, or maintenance. The photographs depict the gray control cabinet with three vacuum interrupter assemblies mounted on top, the wiring diagram reference 691C386H44, and detailed views of individual vacuum chambers and control mechanisms with various serial number markings (691C564612, 0306N58117, 0306N58112, and 9Z189N).