Westinghouse KA3300 Three-Phase Molded Case Circuit Breaker

Description:

The Westinghouse KA3300 Circuit Breaker is used in industrial and commercial electrical distribution systems to provide overcurrent and short-circuit protection for high-capacity three-phase power circuits and electrical equipment. Commonly installed in switchgear assemblies, panelboards, 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 KA3300 circuit breaker is commonly used in manufacturing facilities, commercial buildings, HVAC systems, industrial automation equipment, and power distribution applications 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: KA3300
• Product Type: Circuit Breaker
• Breaker Series: KA
• Number of Poles: 3 Pole
• Current Rating: 300 Amp
• Voltage Rating: 600 Volt AC
• Phase Type: 3 Phase
• Trip Type: Thermal Magnetic
• 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: Branch circuit and equipment protection applications
• Construction: Molded case circuit breaker

Common Replacements:

• Eaton KA3300
• Cutler-Hammer KA3300
• Square D KA36300