QBHW3070HS - 70 Amp Circuit Breaker

QBHW3070HS - 70 Amp Circuit Breaker

The QBHW3070HS is a 3-pole, 70-amp bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent protection for your commercial and industrial electrical distribution systems. Built with a 22kA interrupting rating at 240VAC, this breaker helps you protect equipment and branch circuits from overloads and short circuits while delivering the secure connection of a bolt-on mounting design. Equipped with an integral 120V AC shunt trip device, the QBHW3070HS can be remotely tripped when connected to an external control or safety circuit, making it an excellent choice for emergency shutdown systems, fire alarm interfaces, and other applications requiring remote circuit interruption. Rated for 40°C operation and HACR applications, this Quicklag™ thermal magnetic circuit breaker combines reliable performance with straightforward installation, making it well-suited for demanding electrical environments where consistent protection and remote-tripping capability are essential.

Key Features and Benefits

• 70 Amp continuous current rating for reliable branch circuit protection.
• Three-pole configuration for protecting three-phase electrical systems.
• Bolt-on mounting design provides a secure mechanical and electrical connection.
• Thermal magnetic trip mechanism responds to both sustained overloads and instantaneous short-circuit conditions.
• Integrated 120V AC shunt trip device enables remote tripping for enhanced safety and system control.
• 22 kA interrupting capacity at 240 VAC helps protect electrical equipment during high-fault-current events.
• Quicklag™ design supports dependable performance in commercial and industrial applications.
• HACR rated for use in approved heating, air conditioning, and refrigeration equipment.
• 40°C rated for reliable operation in elevated ambient temperatures commonly found in electrical installations.
  

Technical Specifications

• Part Number: QBHW3070HS
  
• Type: QBHW
  
• Amperage: 70 Amps
  
• Number of Poles: 3
  
• Interrupting Rating: 22kA @ 240VAC
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Shunt Trip: 120V AC Integral Shunt Trip
  
• HACR Rated: Yes
  
• Operating Temperature Rating: 40°C
  
• Dimensions:
  • Height: 3.41 in.
  • Width: 4.00 in.
  • Depth: 2.92 in.

Material Compliance and Certifications

• HACR rated for approved heating, air conditioning, and refrigeration applications.
• Thermal magnetic protection designed to provide dependable overload and short-circuit protection.
• Manufactured for installation in compatible bolt-on electrical distribution equipment.
• Always verify compatibility with the intended panelboard or load center and ensure installation complies with applicable national, state, and local electrical codes.
  

Where It Works Best

• The QBHW3070HS is well suited for commercial buildings, industrial facilities, manufacturing operations, institutional properties, and other three-phase electrical systems where dependable circuit protection and remote shutdown capability are required. Its built-in 120V AC shunt trip makes it an excellent option for emergency power disconnect systems, fire alarm integration, safety interlocks, HVAC equipment, machinery, and other installations that require remote disconnection of electrical circuits while maintaining reliable overcurrent protection during everyday operation.