Westinghouse MA3800F Molded Case Circuit Breaker

Description:

The Westinghouse MA3800F Circuit Breaker is used in industrial and commercial electrical distribution systems to provide high-capacity overcurrent and short-circuit protection for three-phase power circuits and electrical equipment. Commonly installed in switchgear assemblies, motor control centers, industrial machinery, and commercial electrical panels where dependable thermal magnetic protection and interchangeable trip functionality are required. Maintenance teams, electricians, and facility operators use this breaker for replacement of aging protection devices, breaker rebuilds, and electrical system upgrades.

Applications:

The Westinghouse MA3800F circuit breaker is commonly used in manufacturing facilities, industrial automation systems, HVAC equipment, large motor applications, and power distribution systems where reliable 300 amp three-phase circuit protection and dependable fault interruption are critical for safe and continuous electrical operation.

Technical Specifications:

• Brand: Westinghouse
• Part Number: MA3800F
• Product Type: Molded Case Circuit Breaker
• Breaker Series: MA
• Number of Poles: 3 Pole
• Frame Rating: 800 Amp
• Trip Rating: 300 Amp
• Voltage Rating: 600 Volt AC
• Phase Type: 3 Phase
• Interrupt Rating: 30kA @ 480V AC
• Trip Type: Thermal Magnetic
• Trip Functions: Long-Time and Instantaneous
• Mounting Type: Bolt-On
• Application: Commercial and industrial electrical protection systems
• Function: Overcurrent and short-circuit protection
• Compatible Equipment: Switchgear and distribution systems
• Installation Type: Panel mounted
• Usage Environment: Commercial and industrial electrical systems
• Designed For: High-capacity branch circuit and equipment protection applications
• Construction: Molded case circuit breaker

Common Replacements:

• Eaton MA3800F
• Cutler-Hammer MA3800F
• Square D MA36300