Westinghouse 373D958G14 Kb Breaker Vari-depth Mechanism

Description:

The Westinghouse 373D958G14 Vari-Depth Mechanism is a circuit breaker operating mechanism designed for Westinghouse KB-frame molded case circuit breakers. It provides external manual operation of the breaker through an enclosure door while accommodating various enclosure depths using an adjustable shaft and linkage assembly. This mechanism is commonly installed in switchboards, motor control centers, industrial control panels, and power distribution equipment where safe breaker operation is required without opening the enclosure. Vari-depth mechanisms are specifically designed to adapt to different panel depths while maintaining reliable breaker actuation and personnel safety.

Applications:

The Westinghouse 373D958G14 vari-depth mechanism is commonly used in industrial switchgear, electrical distribution panels, motor control centers, manufacturing facilities, utility power systems, and OEM electrical equipment where KB-frame circuit breakers require external operation through a door-mounted handle mechanism.

Technical Specifications:

• Manufacturer: Westinghouse / Cutler-Hammer / Eaton
• Part Number: 373D958G14
• Product Type: Vari-Depth Operating Mechanism
• Compatible Breaker Series: KB Frame Circuit Breakers
• Application Type: Circuit Breaker Operating Accessory
• Function: External breaker operation through enclosure door
• Operating Method: Manual rotary handle mechanism
• System Compatibility: Westinghouse KB Frame Breakers
• Installation Environment: Switchgear and electrical enclosures
• Mounting Type: Door-mounted operating mechanism
• Mechanical Function: Adjustable-depth breaker actuation
• Safety Feature: Allows breaker operation without opening enclosure
• Industry Use: Industrial power distribution and motor control
• Compatible Equipment: Switchboards, MCCs, and panelboards
• Service Application: Replacement and retrofit projects
• Equipment Category: Circuit Breaker Accessory Hardware

Common Replacements:

• Eaton KB Frame Vari-Depth Mechanism
• Cutler-Hammer KB Breaker Operating Mechanism
• Siemens Rotary Breaker Operating Mechanism