Westinghouse DS 632 3200A MO DO LS

The Westinghouse DS 632 3200A MO/DO LS is a heavy‑duty low‑voltage air circuit breaker designed for industrial and commercial electrical power distribution systems. It features a 3200 ampere frame rating for three‑phase service and is engineered to protect electrical circuits from overloads, short‑circuits, and ground fault conditions through adjustable LS (Long‑Time and Short‑Time) protection functions. The “MO/DO” designation indicates that the breaker is Manually Operated (MO) and Draw‑Out (DO), enabling easy insertion and removal from switchgear cells for maintenance, testing, or service.

Built on Westinghouse’s DS series platform, this breaker is suitable for low‑voltage applications (typically up to about 600 V ac) and is often equipped with an Amptector solid‑state trip unit with LS or LSIG capabilities, providing flexible protective coordination with upstream and downstream devices. The robust construction and high interrupting capacity make it ideal for demanding environments where dependable protection and system continuity are essential.

Because of its draw‑out design, the DS 632 allows quick removal and replacement of the breaker module, which significantly reduces downtime during maintenance or troubleshooting. Its manual operation gives operators direct control over breaker positioning and engagement within the switchgear assembly.

Westinghouse DS 632 3200A MO DO LS Air Circuit Breaker, Manual operating handle, Motor operator (MO), Draw-out mechanism (DO), Long-time and short-time protection (LS) trip unit, Mounting hardware, Instruction manual and wiring diagram, Safety and compliance documentation, Manufacturer warranty card, Original Westinghouse packaging