BQ1-C020 - 20Amp Circuit Breaker

BQ1-C020 - 20 Amp Circuit Breaker

The BQ1-C020 is a 20-amp, single-pole molded case circuit breaker designed for dependable circuit protection in 277VAC electrical distribution systems. Built on the BQ-C frame, this bolt-on breaker is engineered for secure panelboard installation and consistent overcurrent protection in commercial and industrial applications operating at 40°C. With a compact footprint (3.88" height) and a ship weight of 0.88 lbs., the BQ1-C020 is well-suited for facilities that require a form, fit, and functional replacement breaker compatible with existing BQ-C frame configurations.

Designed to protect branch circuits from overloads and short circuits, this 20A bolt-on circuit breaker helps maintain system integrity while supporting compliance with applicable electrical codes. Its molded case construction provides durable insulation and protection in demanding electrical environments. Whether you're maintaining a legacy panelboard or replacing an existing BQ-C frame unit, the BQ1-C020 delivers the ratings and configuration required for proper system coordination and safe operation.

Key Features and Benefits

• 20 Amp Rating – Provides reliable overcurrent protection for 277VAC branch circuits.
• Single-Pole Design – Suitable for individual phase protection in commercial lighting and power applications.
• Bolt-On Mounting – Ensures secure mechanical and electrical connection within compatible panelboards.
• 277VAC Voltage Rating – Designed for use in commercial distribution systems operating at 277 volts AC.
• BQ-C Frame Compatibility – Form, fit, and function replacement for panels designed to accept BQ-C frame breakers.
• Molded Case Construction – Built to last with enclosed insulation and protective housing.
• Rated for 40°C Environments – Suitable for standard operating temperature conditions in electrical rooms and panels.

Technical Specifications

• Part Number: BQ1-C020
  
• Amperage: 20 Amps
  
• Poles: 1
  
• Voltage Rating: 277VAC
  
• A.I.C. Rating: 277VAC (as marked)
  
• Frame Type: BQ-C
  
• Mounting Type: Bolt-On
  
• Construction: Molded Case Circuit Breaker
  
• Operating Temperature Rating: 40°C
  
• Height: 3.88 in.
  
• Ship Weight: 0.88 lbs.
  

Material Compliance and Certifications

• Industry Standards: The BQ1-C020 molded case circuit breaker is manufactured to meet applicable industry standards for low-voltage circuit protection.
• UL and NEC Considerations: Molded case breakers of this type are typically designed in accordance with UL and NEC requirements for branch circuit protection when installed in properly rated equipment. Always verify panel compatibility and local code compliance prior to installation.
  

Where It Works Best

• Commercial lighting circuits operating at 277VAC
• Office buildings and retail facilities
• Industrial control panels requiring single-pole protection
• Maintenance and replacement projects involving BQ-C frame panelboards
• Electrical distribution systems operating in standard 40°C ambient environments