QBHW3070H - 70 Amp Circuit Breaker

QBHW3070H - 70 Amp Circuit Breaker

The QBHW3070H is a 70-amp, 3-pole, bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection in your commercial and industrial electrical distribution systems. Built as a QBHW Quicklag breaker, it features a 22kA interrupting rating at 240VAC, making it well-suited for applications where higher fault current capacity is required. Its bolt-on mounting design provides a secure electrical connection that minimizes movement and supports long-term reliability in demanding panelboard installations. Rated for 40°C operation and HACR applications, the QBHW3070H is an excellent choice for protecting HVAC equipment, branch circuits, and three-phase electrical systems. The thermal-magnetic trip mechanism responds to both prolonged overloads and instantaneous short circuits, helping you safeguard electrical equipment and support system uptime.

Key Features and Benefits

• 70 Amp Current Rating for protecting medium-capacity electrical circuits.
• 3-Pole Configuration designed for three-phase electrical distribution systems.
• 22kA Interrupting Capacity at 240VAC helps provide reliable protection where higher available fault current exists.
• QBHW Quicklag Design for compatibility with designated bolt-on panelboard applications.
• Bolt-On Mounting delivers a secure installation and dependable electrical connection.
• Thermal Magnetic Trip Unit protects against both overload conditions and short-circuit faults.
• 40°C Rated for dependable performance in elevated ambient temperature environments.
• HACR Rated for use in heating, air conditioning, and refrigeration equipment applications.
• Compact footprint allows installation in compatible panelboards without sacrificing protection.
  

Technical Specifications

• Part Number: QBHW3070H
  
• Type: QBHW
  
• Current Rating: 70 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Rating (A.I.C.): 22kA @ 240VAC
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.41 in.
  • Width: 3.00 in.
  • Depth: 2.92 in.

Material Compliance and Certifications

• HACR rated for approved heating, air conditioning, and refrigeration applications.
• Thermal magnetic protection provides dependable overload and instantaneous short-circuit protection.
• Manufactured for installation in compatible electrical distribution equipment designed for QBHW Quicklag bolt-on circuit breakers.
• Designed to meet applicable industry performance standards for its product class when installed according to manufacturer specifications and local electrical codes.
  

Where It Works Best

• The QBHW3070H is an excellent choice for commercial, industrial, and institutional electrical systems that require dependable 70-amp three-phase circuit protection. It performs well in panelboards serving HVAC equipment, lighting systems, motor loads, distribution circuits, manufacturing facilities, office buildings, schools, healthcare facilities, and other applications where a 22kA @ 240VAC interrupting rating, bolt-on installation, and thermal magnetic protection are required. Its combination of reliable fault protection, secure mounting, and HACR suitability makes it a practical solution for maintaining safe and efficient electrical operation.