BQCH2B040 - 40Amp Circuit Breaker

BQCH2B040 - 40 Amp Circuit Breaker

The BQCH2B040 circuit breaker is a 2-pole, 40-amp molded case circuit breaker designed for dependable overcurrent protection in commercial and industrial electrical distribution systems. Built on the BQCH frame platform, this bolt-on breaker is rated for 14kA interrupting capacity at 480VAC, making it suitable for higher-voltage panelboard applications where proper fault interruption is critical. Engineered for use at 40°C, and HACR rated for heating, air conditioning, and refrigeration applications, the BQCH2B040 is commonly used as a direct replacement in compatible panelboards and load centers requiring a bolt-on configuration. Its compact footprint and secure mounting design help ensure proper form, fit, and function in existing installations. Built to last, this breaker provides consistent thermal-magnetic protection against overloads and short circuits in demanding electrical environments.

Key Features and Benefits

• 40 Amp Rating: Designed to protect branch circuits carrying up to 40 amps of continuous current.
• 2-Pole Configuration: Provides protection for 240V and 480V applications requiring dual-phase interruption.
• 14kA Interrupting Capacity at 480VAC: Rated to safely interrupt fault currents up to 14,000 amps.
• Bolt-On Mounting Style: Secures directly to the panelboard bus for stable, vibration-resistant installation.
• BQCH Frame Type: Manufactured to match the dimensional and mechanical specifications of BQCH series panelboards.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment circuits.
• 40°C Temperature Rating: Calibrated for operation in standard commercial and industrial ambient conditions.
• Molded Case Construction: Enclosed housing helps protect internal components from dust and incidental contact.

Technical Specifications

• Part Number: BQCH2B040
• Frame Type: BQCH
• Amperage: 40 Amps
• Poles: 2
• Voltage Rating: Up to 480VAC
• Interrupting Rating (A.I.C.): 14kA @ 480VAC
• Mounting Type: Bolt-On
• Temperature Rating: 40°C
• HACR Rated: Yes
• Breaker Type: Molded Case Circuit Breaker
• Approximate Shipping Weight: 2.0 lbs
• Height: 4.49 inches

Material Compliance and Certifications

• The BQCH2B040 molded case circuit breaker is manufactured and tested to meet applicable industry standards for low-voltage circuit protection.
• HACR certification confirms suitability for HVAC-related installations where permitted by code.
• As with all properly rated molded case breakers, installation should comply with the National Electrical Code (NEC) and local electrical regulations to ensure safe and code-compliant operation.

Where It Works Best

• This 40-amp, 2-pole BQCH breaker is commonly installed in commercial panelboards, industrial distribution panels, and facilities operating at up to 480VAC.
• It is well-suited for branch circuit protection feeding HVAC systems, lighting panels, small motor loads, and other three-phase or multi-phase applications requiring a bolt-on breaker format.
• Electricians and facility maintenance teams often select this model when matching existing BQCH frame panelboards where proper alignment and secure bus connection are required for safe operation.