QBHW3020HS - 20Amp Circuit Breaker

QBHW3020HS - 20Amp Circuit Breaker

When your application calls for a 20-amp, 3-pole breaker with a 120VAC shunt trip, the QBHW3020HS gives you those features in a compact bolt-on design. This QBHW Quicklag circuit breaker uses thermal magnetic protection and carries a 22kA interrupting rating at 240VAC. The built-in shunt trip is an important part of this model—it allows the breaker to be tripped electrically from a properly configured remote control or safety circuit instead of relying only on manual operation. It's also HACR rated and rated at 40°C, making it a practical choice for compatible HVAC/R equipment as well as a range of commercial and industrial electrical applications. At just 3.41 inches high, 4 inches wide, and 2.92 inches deep, the QBHW3020HS packs three-pole protection and shunt-trip capability into a relatively compact footprint. If you're replacing an existing breaker, don't go by appearance alone. Check the part number, amperage, poles, mounting style, interrupting rating, and shunt-trip voltage to make sure the breaker matches the equipment requirements.

Key Features and Benefits

• 20-amp, 3-pole configuration designed for compatible circuits requiring 3-pole, 20A protection.
• 22 kA at 240 VAC provides an interrupting rating of 22,000 amps at 240 VAC.
• Thermal magnetic protection responds to both overload and short-circuit conditions.
• 120VAC shunt trip allows remote electrical tripping when used with an appropriate control circuit.
• Bolt-on connection made for compatible equipment that accepts QBHW bolt-on breakers.
• HACR rated suitable for compatible heating, air-conditioning, and refrigeration applications where an HACR-rated breaker is required.
• Current rating is specified at 40°C.
• Compact dimensions measure 3.41" H × 4.0" W × 2.92" D.

Technical Specifications

• Part Number: QBHW3020HS
  
• Type: QBHW
  
• Breaker Style: Bolt-On Thermal Magnetic
  
• Poles: 3
  
• Amperage: 20A
  
• AIC Rating & Voltage: 22kA @ 240VAC
  
• Shunt Trip Device: 120VAC
  
• HACR Rated: Yes
  
• Temperature Rating: 40°C
  
• Height: 3.41 in.
  
• Width: 4.0 in.
  
• Depth: 2.92 in.
  

Material Compliance and Certifications

• The available specifications identify the QBHW3020HS as HACR rated. Additional certification or material-compliance claims, including UL, CSA, RoHS, or REACH status, should be confirmed using the applicable manufacturer documentation or markings on the specific breaker. This avoids assuming certifications that aren't included in the supplied product data.

Where It Works Best

• The QBHW3020HS makes sense in compatible commercial and industrial electrical systems, panelboards, machinery, HVAC/R equipment, and control applications that call for a 20A, three-pole, bolt-on thermal magnetic breaker. The 120VAC shunt trip is especially useful in systems where the breaker needs to be opened remotely through a control or safety function.
  
• For a replacement, the details matter. Confirm the QBHW type, 20A rating, three poles, bolt-on mounting, 22kA rating at 240VAC, physical dimensions, and 120VAC shunt trip against the existing equipment and application requirements. Breaker compatibility and installation should be verified by a qualified electrical professional.