A1B320 - 20 Amp Circuit Breaker

A1B320 - 20 Amp Circuit Breaker

Protect your electrical system with confidence using the A1B320 20‑Amp Thermal Magnetic Circuit Breaker. Built for those who demand dependable safety and long-term performance, this 3‑pole breaker delivers a reliable barrier against both overloads and short-circuit faults — no matter whether you're wiring a home, a small business, or a light-industrial setup. Thanks to its high interrupting capacity and solid bolt-on design, this circuit breaker gives you dependable protection and peace of mind under real-world electrical loads.

Key Features and Benefits

• Dual Protection Technology – Thermal magnetic operation means the breaker quickly responds to both slow-building overloads and sudden short circuits, keeping circuits safe and equipment protected.
• Secure Bolt-On Installation – The bolt‑on configuration ensures a strong and stable connection, reducing installation time and minimizing the risk of loose connections or failures in demanding conditions.
• High Fault-Current Handling – With a 10 kA interrupting rating at 240 VAC, the A1B320 can safely clear high fault currents without damage — ideal when you need dependable performance under heavy loads or unexpected surges.
• Versatile Application – Whether you're wiring a residential panel, a small commercial distribution board, or a light industrial control system, this breaker is flexible enough to fit many environments while still delivering high-quality protection.

Technical Specifications

• Poles: 3‑pole
  
• Ampere Rating: 20 A
  
• Interrupting Capacity: 10 kA at 240 VAC
  
• Frame Type: A1B
  
• Dimensions:
  • Width: 2.25 inches
  • Length: 6.00 inches
  • Depth: 2.31 inches
• Ship Weight: Approx. 3.10 lbs
  

Material Compliance and Certifications

• Industry Standards: The A1B320 utilizes industry‑standard thermal magnetic technology and is built to meet rigorous electrical safety requirements. It follows recognized safety certifications, reassuring you that it complies with accepted norms for circuit protection devices.

Where It Works Best

• Residential wiring applications — providing strong, reliable protection for household circuits and load centers.
• Light commercial setups — ideal for small offices, retail shops, or service spaces with moderate electrical demands.
• Light industrial or workshop environments — perfect for control panels, motor circuits, or machinery where dependable short-circuit and overload protection is crucial.