QB50 - 50 Amp Circuit Breaker

QB50 - 50 Amp Circuit Breaker

The QB50 50 Amp Circuit Breaker is built for everyday electrical work where dependable protection matters. It’s designed to help protect circuits from overloads and short circuits and fits naturally into residential panels as well as many light commercial setups. The single-pole design supports standard 120 VAC applications, while the bolt-on mounting helps keep the breaker firmly in place once installed. Its smaller footprint also makes it easier to work with in tighter panels, especially during replacements or quick system upgrades.

Key Features and Benefits

• 50 Amp Rating: Handles medium electrical loads commonly found in homes and smaller commercial spaces.
• Bolt-On Mounting: Secures directly to the panel, helping reduce movement and keeping connections steady over time.
• Compact Size: Designed to fit neatly in breaker panels without taking up unnecessary space.
• Single-Pole Configuration: Suitable for standard 120 VAC circuits used in many everyday applications.

Technical Specifications

• Poles: 1
• Amperage: 50 Amp
• Voltage: 120 VAC
• Interrupting Capacity: 10 kA
• Frame Type: QB
• Mounting: Bolt-On
• Weight: Approx. 1.75 lb
• Dimensions:
  • Width: 0.75″
  • Length: 4.81″
  • Depth: 2.50″

Material Compliance and Certifications

• This circuit breaker is manufactured with materials selected for consistent electrical performance and long-term use. It meets applicable UL standards and follows NEC guidelines, helping support safe, code-compliant installations in both residential and light commercial electrical systems.

Where It Works Best

• Residential Electrical Panels: A practical option for replacing an existing breaker or adding capacity during panel updates.
• Light Commercial Installations: Commonly used in small offices, service areas, workshops, and similar environments.
• Maintenance and Repairs: The bolt-on design can help speed up service work and reduce downtime during electrical repairs.