Westinghouse JA3150 Three Phase Circuit Breaker

Description:

The Westinghouse JA3150 Circuit Breaker is used in industrial and commercial electrical distribution systems to provide overcurrent and short-circuit protection for three-phase power circuits and electrical equipment. Commonly installed in panelboards, switchgear assemblies, motor control centers, and industrial electrical panels where dependable circuit interruption and thermal magnetic protection are required. Maintenance teams, electricians, and facility operators use this breaker for replacement of aging protection devices, electrical system upgrades, and preventative maintenance of power distribution infrastructure.

Applications:

The Westinghouse JA3150 circuit breaker is commonly used in manufacturing facilities, commercial buildings, HVAC systems, industrial automation equipment, and motor control applications where reliable 150 amp three-phase circuit protection and dependable fault interruption are critical for safe and continuous electrical operation.

Technical Specifications:

• Brand: Westinghouse
• Part Number: JA3150
• Alternate Part Number: KA3150
• Style Number: 371D957G16
• Product Type: Circuit Breaker
• Breaker Series: JA-225
• Number of Poles: 3 Pole
• Current Rating: 150 Amp
• Frame Rating: 225 Amp Frame
• Voltage Rating: 600 Volt AC
• Phase Type: 3 Phase
• Trip Type: Thermal Magnetic
• Trip Setting Range: 1500-750 Amp
• Application: Commercial and industrial electrical protection systems
• Function: Overcurrent and short-circuit protection
• Compatible Equipment: Panelboards and distribution systems
• Installation Type: Panel mounted
• Usage Environment: Commercial and industrial electrical systems
• Designed For: Branch circuit and equipment protection applications
• Construction: Molded case circuit breaker

Common Replacements:

• Eaton JA3150
• Cutler-Hammer KA3150
• Square D KA36150