Q1B220 - 20 Amp Circuit Breaker

Q1B220 - 20 Amp Circuit Breaker

The Q1B220 20A circuit breaker is a reliable, maintenance-grade protection device designed for both residential and light commercial electrical systems. With its two-pole, 20-amp capacity, this unit defends against overloads and short circuits, helping preserve your wiring and connected equipment. Built on thermal-magnetic technology, the Q1B220 reacts precisely to fault currents, offering consistent, repeatable protection. Its compact, bolt-on form requires only four spaces in your panel, making it a convenient pick for retrofits, upkeep, or service jobs where space is tight.

Key Features and Benefits

• 20 Amp, Two-Pole Capability: Supports balanced power distribution while delivering effective protection across the circuit.
• Thermal-Magnetic Trip Mechanism: Combines temperature and magnetic sensing to guard you from both slow overloads and sudden surges.
• Space-Efficient Footprint: Uses just four panel spaces, letting you preserve room for future expansions or additions.
• Bolt-On Mounting: Speeds up installation—ideal for service work where you must swap parts quickly.
• Consistent Protection: Designed for repeat cycles with steady performance under normal electrical stress.

Technical Specifications

• Amperage: 20A
  
• Pole Count: 2 (Two-Pole)
  
• AIC Rating: 10,000 A @ 120/240 VAC
  
• Frame Type: Q1B
  
• Dimensions:
  • Width: 1.50 in
  • Length: 6.38 in
  • Depth: 2.31 in
• Panel Spaces Required: 4
  
• Shipping Weight: 3.50 lbs
  

Material Compliance and Certifications

• This circuit breaker meets industry safety and performance benchmarks, with certifications that verify it adheres to recognized electrical standards.
• The materials used are selected for their durability and long service life, helping ensure the breaker continues to function reliably under typical load cycles.
• You can trust it to hold up under everyday conditions and occasional stress incidents.

Where It Works Best

• The Q1B220 shines in maintenance, repair, and service roles—especially when upgrading or replacing parts in existing panels. It’s well suited for residential homes, light commercial setups, small offices, and service environments where dependable fault protection is needed but full panel overhauls aren’t practical. Don’t use it as part of a total system redesign; it’s made for supplementing and sustaining your existing electrical infrastructure.