Westinghouse A-H12 USNT AH12 Auxiliary Switch

Description:

The WESTINGHOUSE A-H12 USNT Auxiliary Switch is used in industrial motor control and electrical switching systems for auxiliary contact and circuit control functions. Commonly installed in motor starters, contactors, and industrial control panel assemblies, this switch supports reliable operation in automation and power management applications. Maintenance teams and system integrators use this part for replacement maintenance, control system repair, and retrofit projects.

Applications:

The WESTINGHOUSE A-H12 USNT Auxiliary Switch is commonly used in industrial automation systems, motor control centers, electrical distribution equipment, and machinery control panels requiring dependable auxiliary switching and status monitoring functions. It supports manufacturing systems, conveyor applications, HVAC equipment, and heavy industrial electrical operations.

Technical Specifications:

• Manufacturer Part Number (MPN): A-H12 USNT
• Product Type: Auxiliary Switch
• Brand: Westinghouse
• Application Type: Motor Control Systems
• Function: Auxiliary Contact Switching
• Installation Type: Panel Mounted
• Compatible Equipment: Motor Starters and Contactors
• Industrial Use: Automation and Control Panels
• Electrical System Use: Industrial Switching Circuits
• Service Application: Replacement and Retrofit Maintenance
• Operating Environment: Heavy Industrial Applications
• Equipment Type: Industrial Control Assemblies

Common Replacements:

• WESTINGHOUSE A-H12 Auxiliary Switch
• EATON Auxiliary Contact Block
• CUTLER-HAMMER Industrial Auxiliary Switch