QBHW2100S - 100Amp Circuit Breaker

QBHW2100S - 100Amp Circuit Breaker

When you're replacing a circuit breaker, the details matter. The QBHW2100S is a 100-amp, 2-pole Type QBHW Quicklag circuit breaker designed for compatible 120/240VAC electrical systems. It uses a bolt-on connection and thermal magnetic trip mechanism, providing protection against overload and short-circuit conditions. This breaker is rated 22 kA at 120/240VAC and includes a 120VAC shunt trip device, which allows the breaker to be tripped electrically through an appropriate external control circuit. It's also HACR rated and specified at 40°C, making it suitable for compatible heating, air-conditioning, refrigeration, and electrical distribution applications. With dimensions of 3.41 inches high, 3 inches wide, and 2.92 inches deep, it packs its 100A, two-pole protection into a fairly compact footprint. If you're replacing an existing breaker, be sure to check more than the amperage. The QBHW type, two-pole configuration, voltage, interrupting rating, bolt-on connection, and shunt-trip requirements all need to match the equipment.

Key Features and Benefits

• 100 amp, 2-pole design for compatible two-pole electrical circuits.
• 120/240VAC rating for equipment designed around this voltage specification.
• 22 kA A.I.C. at 120/240VAC, providing the specified short-circuit interrupting capacity.
• Thermal magnetic operation for overload and short-circuit protection.
• 120VAC shunt trip device for applications that require electrically initiated breaker tripping.
• Bolt-on mounting for a secure connection in compatible QBHW equipment.
• HACR rated, making it appropriate for qualifying heating, air-conditioning, and refrigeration applications.
• 40°C rating as specified for this breaker.
• Compact 3.41" H × 3.0" W × 2.92" D dimensions.

Technical Specifications

• Part Number: QBHW2100S
  
• Type: QBHW
  
• Breaker Type: Thermal Magnetic
  
• Mounting: Bolt-On
  
• Amperage: 100A
  
• Poles: 2
  
• Voltage: 120/240VAC
  
• A.I.C. Rating: 22 kA @ 120/240VAC
  
• Shunt Trip: 120VAC
  
• HACR Rated: Yes
  
• Temperature Rating: 40°C
  
• Dimensions:
  • Height: 3.41 in.
  • Width: 3.0 in.
  • Depth: 2.92 in.

Material Compliance and Certifications

• The supplied specifications identify the QBHW2100S as HACR rated and specify a 40°C rating. Its interrupting capacity is 22 kA at 120/240VAC. If a particular installation calls for additional certifications, listings, or material-compliance requirements, those details should be checked against the labeling and documentation for the actual breaker. This is especially important for electrical equipment, where an assumption about a certification isn't worth making.

Where It Works Best

• This breaker makes the most sense in equipment specifically designed for a 100A, 2-pole QBHW bolt-on breaker with a 120/240VAC rating. Its HACR rating also makes it useful for compatible HVAC and refrigeration applications, while the 120VAC shunt trip is important when the system needs a way to trip the breaker from an external control circuit.