BQCH1B040 - 40Amp Circuit Breaker

BQCH1B040 - 40 Amp Circuit Breaker

The BQCH1B040 is a 1-pole, 40-amp molded case circuit breaker designed for dependable circuit protection in commercial and industrial distribution systems. Built on the BQCH frame type, this bolt-on breaker is engineered for form, fit, and functional replacement in compatible panelboards and load centers. With a 14kA A.I.C. rating at 277VAC, it provides the interrupting capacity required for branch circuit protection in 277V lighting and power applications. Rated for operation at 40°C and HACR listed, this breaker is well-suited for systems supporting heating, air conditioning, and refrigeration equipment. Its compact footprint and secure bolt-on mounting help ensure a stable connection and consistent electrical performance in properly rated assemblies.

Designed to meet established electrical standards and built to last, the BQCH1B040 offers a practical solution for maintaining or restoring existing electrical distribution equipment without altering system design parameters.

Key Features and Benefits

• 40 Amp Continuous Rating – Designed to protect 40A branch circuits in commercial and industrial environments.
• Single Pole Configuration – Ideal for 277VAC single-phase branch circuits.
• 14kA Interrupting Capacity at 277VAC – Suitable for applications requiring higher fault current protection within its rating.
• Bolt-On Mounting Style – Provides secure mechanical and electrical connection in compatible BQCH panelboards.
• HACR Rated – Approved for use with heating, air conditioning, and refrigeration equipment circuits.
• 40°C Ambient Rating – Built for consistent operation in standard commercial electrical rooms and enclosures.
• Molded Case Construction – Durable housing designed to protect internal components and support long service life.

Technical Specifications

• Part Number: BQCH1B040
• Frame Type: BQCH
• Amperage Rating: 40 Amps
• Number of Poles: 1
• Voltage Rating: 277VAC
• Interrupting Rating (A.I.C.): 14kA @ 277VAC
• Mounting Style: Bolt-On
• Ambient Temperature Rating: 40°C
• HACR Rated: Yes
• Breaker Type: Molded Case Circuit Breaker
• Approximate Shipping Weight: 1.0 lb
• Height: 4.49 in

Material Compliance and Certifications

• Industry Standards: The BQCH1B040 molded case circuit breaker is manufactured to meet applicable industry safety and performance standards for low-voltage power distribution equipment.
• HACR Certification: HACR certification confirms suitability for HVAC-related applications when installed according to code requirements.
• Always verify compatibility with existing panelboard specifications and follow National Electrical Code (NEC) guidelines and local electrical regulations during installation.

Where It Works Best

• Commercial lighting panels operating at 277VAC
• Office buildings and retail electrical distribution systems
• HVAC branch circuits requiring HACR-rated protection
• Industrial control panels within their voltage and interrupting rating
• Replacement projects involving compatible BQCH panelboards