QBHW3050HS - 50 Amp Circuit Breaker

QBHW3050HS - 50 Amp Circuit Breaker

The QBHW3050HS is a 3-pole, 50-amp QBHW bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection for your commercial and industrial electrical distribution systems. Rated 22kA at 240VAC, this breaker is well-suited for applications where higher interrupting Capacity is required to help you protect connected equipment and maintain electrical system reliability. Its bolt-on mounting design provides a secure connection within compatible panelboards. The integrated 120V AC shunt trip device allows the breaker to be remotely tripped when connected to an external control or safety circuit. Built for 40°C operation and carrying an HACR rating, the QBHW3050HS is an excellent choice for HVAC equipment, motor loads, control panels, and a wide range of demanding commercial installations. Combining thermal magnetic trip protection with remote tripping capability, this breaker helps you support safer operation and simplified system control in applications where dependable circuit protection is essential.

Key Features and Benefits

• 50 Amp Current Rating for reliable protection of branch circuits and electrical equipment.
• 3-Pole Configuration designed for three-phase electrical systems.
• 22 kA interrupting capacity at 240 VAC helps safely interrupt high fault currents.
• Bolt-On Mounting Design delivers a secure mechanical and electrical connection in compatible panelboards.
• Thermal Magnetic Trip Mechanism provides protection against both overloads and short circuits.
• Integrated 120V AC Shunt Trip Device enables remote breaker operation for emergency shutdowns, safety systems, and automated controls.
• 40°C Rated for dependable performance in elevated ambient temperatures.
• HACR Rated for use with heating, air conditioning, and refrigeration equipment where permitted by applicable electrical codes.
• Designed to help minimize downtime while protecting valuable electrical infrastructure.
  

Technical Specifications

• Part Number: QBHW3050HS
  
• Type: QBHW
  
• Poles: 3
  
• Amperage: 50A
  
• Interrupting Rating: 22kA @ 240VAC
  
• Voltage: 240VAC
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Shunt Trip: 120V AC Integrated Shunt Trip Device
  
• HACR Rated: Yes
  
• Ambient Temperature Rating: 40°C
  
• Dimensions:
  • Height: 3.41 in.
  • Width: 4.00 in.
  • Depth: 2.92 in.

Material Compliance and Certifications

• HACR Rated for qualified heating, air conditioning, and refrigeration applications.
• Thermal magnetic protection designed to provide dependable overload and instantaneous short-circuit protection.
• Manufactured for installation in compatible electrical distribution equipment and intended to be installed in accordance with applicable electrical codes and manufacturer requirements.
  

Where It Works Best

• The QBHW3050HS is well-suited for commercial, industrial, and institutional electrical systems requiring a 3-pole, 50-amp bolt-on circuit breaker with remote tripping capability. Typical applications include:
  • Commercial panelboards
  • Industrial power distribution systems
  • HVAC equipment and mechanical systems
  • Manufacturing facilities
  • Motor control applications
  • Control panels requiring remote emergency shutdown
  • Educational, healthcare, and municipal buildings
  • Electrical infrastructure upgrades and maintenance projects
  Its combination of thermal magnetic protection, 22kA interrupting Capacity, bolt-on installation, and an integrated 120V AC shunt trip makes the QBHW3050HS an excellent solution for facilities that require reliable circuit protection along with the flexibility of remote breaker operation.