QBHW3050H - 50 Amp Circuit Breaker

QBHW3050H - 50 Amp Circuit Breaker

The QBHW3050H is a 3-pole, 50-amp bolt-on thermal magnetic circuit breaker designed to provide dependable overcurrent and short-circuit protection in commercial, industrial, and institutional electrical distribution systems. Built as a Type QBHW breaker, this unit features a 22kA interrupting rating at 240VAC, making it well-suited for applications where higher fault current protection is required. Its bolt-on mounting design creates a secure electrical connection that helps minimize movement and supports long-term reliability in demanding panelboard installations. Rated for 40°C operation and HACR applications, the QBHW3050H is engineered to deliver consistent performance while helping protect valuable electrical equipment from overloads and fault conditions. Whether you're replacing an existing breaker during maintenance or completing a new installation, this breaker offers the dependable protection professionals expect for critical power distribution systems.

Key Features and Benefits

• 50 Amp current rating for reliable branch circuit protection.
• Three-pole configuration designed for three-phase electrical systems.
• Type QBHW circuit breaker for compatible bolt-on panelboard installations.
• Bolt-on mounting provides a secure, stable connection that supports long-term performance.
• Thermal magnetic trip mechanism helps protect against both overloads and short circuits.
• 22 kA interrupting capacity at 240 VAC for applications with higher available fault current.
• 40°C rated for dependable operation in elevated ambient temperatures.
• HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment where permitted by code and equipment specifications.
• Compact footprint helps simplify installation and panel organization.
  

Technical Specifications

• Part Number: QBHW3050H
  
• Type: QBHW
  
• Poles: 3
  
• Amperes: 50A
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Interrupting Rating: 22kA @ 240VAC
  
• Voltage Rating: 240VAC
  
• HACR Rated: Yes
  
• Ambient Temperature Rating: 40°C
  
• Dimensions:
  • Height: 3.41 in.
  • Width: 3.00 in.
  • Depth: 2.92 in.

Material Compliance and Certifications

• Thermal magnetic circuit breaker design for dependable overcurrent and short-circuit protection.
• HACR rated for qualifying heating, air conditioning, and refrigeration applications.
• Manufactured for use in compatible electrical distribution equipment and installed in accordance with applicable electrical codes and manufacturer specifications.
  

Where It Works Best

• The QBHW3050H is an excellent choice for protecting three-phase branch circuits in commercial buildings, industrial facilities, schools, healthcare facilities, retail spaces, and other demanding electrical environments. Its 50-amp rating, 22kA interrupting capacity, and bolt-on construction make it especially well-suited for panelboards serving HVAC equipment, motors, mechanical systems, lighting distribution, and general power circuits where secure installation and dependable circuit protection are essential.