Westinghouse QNBL2100 2 Pole 100 Amp 120 240V Main Circuit Breaker

Description:

The Westinghouse QNBL2100 2 Pole 100 Amp 120/240V Main Circuit Breaker is an industrial and commercial electrical protection device used in power distribution systems for overload and short-circuit protection. Commonly installed in main service panels, industrial electrical systems, commercial distribution boards, and facility power management equipment requiring reliable high-current circuit interruption. Maintenance technicians, electricians, and system integrators use this main breaker for panel upgrades, electrical maintenance, and industrial power distribution replacement applications.

Applications:

The Westinghouse QNBL2100 main circuit breaker is designed for industrial and commercial electrical protection in demanding power distribution environments. It is frequently used in manufacturing facilities, motor control systems, HVAC electrical systems, process automation equipment, and industrial distribution panels where dependable main circuit protection and stable electrical operation are critical for equipment safety and system reliability.

Technical Specifications:

• Brand: Westinghouse
• Part Number: QNBL2100
• Product Type: Main Circuit Breaker
• Current Rating: 100 Amp
• Voltage Rating: 120/240V
• Pole Configuration: 2 Pole
• Function: Main overload and short-circuit protection
• Application: Industrial and commercial power distribution systems
• Suitable For: Main service and distribution panel protection
• Mounting Type: Panelboard breaker installation
• Usage Environment: Industrial electrical systems
• Protection Type: Thermal-magnetic circuit protection
• Compatibility: Industrial and commercial distribution equipment
• Construction: Industrial-duty breaker housing
• Designed For: Continuous industrial operation

Common Replacements:

• Eaton Main Circuit Breaker
• Siemens Main Breaker
• Square D Main Circuit Breaker