BQCH3B050 - 50Amp Circuit Breaker

BQCH3B050 - 50 Amp Circuit Breaker

The BQCH3B050 is a 50-amp, 3-pole molded case circuit breaker designed for dependable circuit protection in commercial and industrial distribution systems. Built on the BQCH frame platform, this bolt-on breaker provides form, fit, and function compatibility for panels and switchboards requiring a 14kA interrupting rating at 480VAC. HACR rated and calibrated for 40°C operation, it is well-suited for protecting HVAC equipment, lighting circuits, and three-phase power distribution. Its solid molded case construction and bolt-on mounting configuration help ensure secure installation and stable electrical performance in applications where consistent overcurrent protection is essential.

Designed to meet the demands of legacy electrical systems, the BQCH3B050 offers a practical replacement solution when maintaining or servicing existing equipment. With a compact footprint and a shipping weight of approximately 3 lbs. (4.49 in. height), it integrates smoothly into compatible panelboards using the BQCH frame type. These breakers are built to last and intended to deliver dependable protection against overloads and short circuits within their rated specifications.

Key Features and Benefits

• 50 Amp Rating: Provides reliable overcurrent protection for branch circuits and equipment.
• 3 Pole Configuration: Designed for three-phase electrical systems.
• 14kA Interrupting Capacity at 480VAC: Suitable for systems requiring this level of fault current protection.
• Bolt-On Mounting: Secure mechanical and electrical connection to compatible panelboards.
• BQCH Frame Type: Ensures proper form, fit, and function replacement in designated equipment.
• HACR Rated: Approved for use with heating, air conditioning, and refrigeration applications.
• 40°C Calibration: Engineered for consistent operation in standard ambient temperature conditions.
• Molded Case Construction: Durable enclosure designed for long service life.
  

Technical Specifications

• Part Number: BQCH3B050
  
• Amperage: 50A
  
• Poles: 3
  
• Voltage Rating: Up to 480VAC
  
• Interrupting Rating (A.I.C.): 14kA @ 480VAC
  
• Frame Type: BQCH
  
• Mounting Type: Bolt-On
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Approximate Shipping Weight: 3.0 lbs.
  
• Approximate Height: 4.49 inches
  
• Breaker Type: Molded Case Circuit Breaker
  

Material Compliance and Certifications

• Industry Standards: The BQCH3B050 molded case circuit breaker is manufactured to meet applicable industry standards for molded case circuit breakers, including recognized UL listing requirements and NEC application guidelines where required.
• HACR Certification: HACR certification confirms suitability for HVAC-related equipment protection. Always verify local code requirements and equipment compatibility before installation.
  

Where It Works Best

• Commercial panelboards requiring BQCH frame compatibility
• Industrial three-phase distribution systems
• HVAC equipment circuits (HACR applications)
• Lighting and branch circuit protection in 480VAC systems
• Maintenance and replacement projects in existing electrical infrastructure