CBB3020H - 20Amp Circuit Breaker

CBB3020H - 20Amp Circuit Breaker

The CBB3020H is a 20 amp, 3-pole bolt-on molded case circuit breaker used in 240VAC three-phase electrical systems. When a circuit sees an overload or short circuit, the breaker trips and disconnects power to help protect connected equipment and wiring.

A 20 amp 3-pole breaker is commonly found on three-phase circuits serving HVAC equipment, air handlers, refrigeration systems, pumps, compressors, motor control circuits, and other commercial or industrial equipment. Because all three poles trip together, the breaker provides protection across the entire circuit rather than a single phase.

The bolt-on mounting design allows the breaker to be securely installed in compatible panelboards, making it a common option for both replacement work and new installations. The CBB3020H carries a 10kA interrupting rating at 240VAC and is HACR rated, which allows it to be used in many heating, air-conditioning, and refrigeration applications. Its compact size can also be useful when panel space is limited and matching an existing breaker footprint is important.

Whether you're replacing a breaker during maintenance or matching project specifications, the CBB3020H is a straightforward choice when a 20 amp, 3-pole bolt-on circuit breaker is required.

Key Features and Benefits

• 20 amp rating for branch circuit protection
• Three-pole design for 240VAC three-phase systems
• Bolt-on mounting for installation in compatible panelboards
• 10kA interrupting capacity at 240VAC
• HACR rated for HVAC and refrigeration applications
• Molded case construction for overcurrent and short-circuit protection
• Compact design helps conserve panel space
• Rated for operation in ambient temperatures up to 40°C

Technical Specifications

• Part Number: CBB3020H
  
• Type: CBB
  
• Amperage Rating: 20 Amps
  
• Poles: 3
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• Mounting Style: Bolt-On
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• HACR Rated: Yes
  
• Maximum Ambient Temperature: 40°C
  
• Approximate Dimensions:
  • Width: 3.00"
  • Height: 3.41"
  • Depth: 2.92"
• Approximate Shipping Weight: 2.50 lbs
  

Material Compliance and Certifications

• HACR (Heating, Air Conditioning, and Refrigeration) Rated
• Molded case circuit breaker construction
• Intended for overcurrent and short-circuit protection applications
• Suitable for installation in compatible bolt-on panelboard systems
• Rated for operation in ambient temperatures up to 40°C

Where It Works Best

The CBB3020H is commonly used in commercial buildings, warehouses, manufacturing facilities, schools, office complexes, retail locations, and light industrial environments. Typical applications include HVAC systems, air handlers, refrigeration equipment, compressors, pumps, motor control circuits, machinery, panelboards, and three-phase electrical distribution systems requiring a 20 amp, 3-pole circuit breaker operating on 240VAC power.