BQ3D020 - 20Amp Circuit Breaker

BQ3D020 - 20 Amp Circuit Breaker

The BQ3D020 is a 20-amp, 3-pole bolt-on molded case circuit breaker designed for dependable circuit protection in commercial and light industrial panelboards operating at up to 240VAC. Built on the BQ frame platform, this breaker provides 10kA A.I.C. interrupting capacity and is HACR rated, making it suitable for heating, air conditioning, and refrigeration applications. Engineered for 40°C environments, the BQ3D020 is manufactured to deliver consistent overcurrent protection while maintaining proper form, fit, and function within compatible BQ frame panelboards. If you’re maintaining or servicing an existing electrical distribution system, this breaker offers a direct replacement solution that aligns with original equipment specifications.

Designed for durability and long service life, the BQ3D020 helps protect branch circuits from overloads and short circuits while supporting safe, code-aligned installations when used in properly rated equipment. Its bolt-on mounting configuration ensures a secure connection to the panelboard bus, minimizing movement and helping maintain stable electrical contact over time.

Key Features and Benefits

• 20 Amp Continuous Rating: Provides reliable protection for branch circuits requiring 20A overcurrent protection.
• 3 Pole Configuration: Suitable for three-phase applications and multi-pole circuit requirements.
• 10kA A.I.C. @ 240VAC: Interrupting capacity rated for systems up to 240 volts AC.
• Bolt-On Mounting: Secures directly to the panelboard bus for a firm and stable installation.
• BQ Frame Type: Designed for compatibility with equipment utilizing the BQ frame format.
• HACR Rated: Approved for use with heating, air conditioning, and refrigeration equipment.
• 40°C Rated: Calibrated for operation in standard industrial and commercial ambient conditions.
• Built to Last: Constructed with durable internal components intended for long-term service in properly maintained systems.
  

Technical Specifications

• Part Number: BQ3D020
  
• Amperage: 20 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Rating (A.I.C.): 10kA @ 240VAC
  
• Frame Type: BQ
  
• Mounting Type: Bolt-On
  
• HACR Rated: Yes
  
• Temperature Rating: 40°C
  
• Approximate Shipping Weight: 3.0 lbs
  
• Height: 3.29 inches
  

Material Compliance and Certifications

• Industry Standards: The BQ3D020 molded case circuit breaker is manufactured in accordance with applicable industry standards for molded case circuit breakers and is designed to meet UL listing requirements when installed in properly rated and compatible equipment.
• HACR Certification: HACR certification supports its use in HVAC-related applications. Always confirm installation aligns with NEC requirements and the specifications of the original panelboard manufacturer.
  

Where It Works Best

• Commercial panelboards requiring BQ frame bolt-on breakers
• HVAC circuits where HACR-rated protection is specified
• Three-phase branch circuits up to 240VAC
• Electrical maintenance projects requiring a form, fit, and functional replacement for existing BQ3D020 units
• Facilities operating in standard 40°C ambient environments, including offices, retail buildings, light industrial sites, and multi-unit properties