A1B350 - 50 Amp Circuit Breaker

A1B350 - 50 Amp Circuit Breaker

The A1B350 50‑Amp Bolt-On Thermal Magnetic Circuit Breaker delivers dependable electrical protection when it matters most — ensuring your system stays safe, your equipment stays functional, and downtime stays minimal. With its solid 50 A capacity and 3‑pole design, it’s built to handle demanding commercial and industrial workloads with a combination of thermal overload and magnetic short‑circuit protection. Installing it is quick and secure thanks to its bolt-on frame, and the high 10 kA A.I.C. rating at 240 VAC means it is ready for heavy‑duty applications without breaking a sweat. Whether you’re outfitting a new panel or upgrading an existing setup, the A1B350 is engineered to deliver continuous, reliable performance — giving you peace of mind that your electrical system is protected, day in and day out.

Key Features and Benefits

• Dual Protection System — The breaker blends thermal overload protection with magnetic short‑circuit detection to guard your circuits from both gradual overcurrent and sudden fault conditions.
• Bolt-On Mounting — Designed for bolt-on installation, it ensures a secure, vibration‑resistant fit in electrical panels. This reduces the chance of poor connections and helps maintain long-term safety.
• High Fault‑Current Capacity — With a 10,000 A Interrupting Capacity (A.I.C.) at 240 VAC, the A1B350 is capable of safely interrupting high fault currents typical in industrial or heavy‑duty settings.
• Dependable Operation Under Load — Especially well-suited for continuous loads such as HVAC systems, heavy machinery, or other demanding applications where reliability is critical.

Technical Specifications

• Poles: 3‑Pole
• Amperage: 50 A
• A.I.C. Rating: 10,000 A at 240 VAC
• Frame Type: A1B
• Dimensions:
  • Width: 2.25″
  • Length: 6.00″
  • Depth: 2.31″
• Shipping Weight: Approx. 3.10 lb

Material Compliance and Certifications

• The A1B350 is manufactured from premium, code‑compliant materials that meet industry-standard safety and durability requirements. It is fully compliant with the latest electrical codes and certifications, giving you confidence that the breaker meets regulatory safety standards and performs reliably across a range of operating conditions.

Where It Works Best

• This circuit breaker is an excellent choice for commercial buildings, industrial facilities, and HVAC installations — anywhere a dependable 50‑amp circuit is required. It’s ideal for heavy machinery, compressors, large motors, air conditioning units, or any high-demand electrical load. Whether you’re building a new electrical panel or replacing an older breaker, the A1B350 offers a straightforward, long-lasting solution to keep your systems protected and running smoothly.