Square D BJA36050 - 50 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D BJA36050 is a rugged, plug-in molded case circuit breaker engineered to deliver dependable branch circuit protection in panelboards and load centers. With a 50-amp rating, 600-volt capacity, and a 3-pole design, this device is built for reliable performance in 3-phase systems and mixed-load applications.

• Fast, plug-in installation — designed for quick replacement or upgrade, minimizing downtime when servicing panelboards.
• Thermal-magnetic trip unit — provides stable overload protection (thermal) combined with rapid short-circuit protection (magnetic) for consistent, repeatable response.
• OEM-compatible construction — engineered to work seamlessly with matching Square D OEM load centers and panelboards, reducing compatibility concerns during installs or retrofits.
• Versatile across settings — suitable for residential, commercial, and light industrial applications where reliable 50A, 600V protection is needed.

Technical specifications

• Manufacturer: Square D
• Part number: BJA36050
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 50 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider this breaker? technicians and electricians upgrading or expanding three-phase electrical distributions in commercial spaces, light industrial facilities, or residential multi‑unit panels where a reliable 3-pole protection device is required. Its plug-in design enables faster service, while the thermal‑magnetic trip ensures safety during both sustained overloads and sudden faults.

Installation and compatibility tips: ensure your panelboard is designed for plug-in breakers and accepts Square D BJA-series devices, with a matching voltage and amperage rating for the circuit you’re protecting. Always follow local electrical codes and manufacturer instructions, and replace like-for-like components to preserve panel listings and warranty coverage.

In short, the Square D BJA36050 delivers precise, durable protection for essential circuits, with installation convenience and OEM compatibility that make it a practical choice for dependable electrical safety in varied environments.