Square D BJA260401 - 40 A, 2-Pole Plug-In Circuit Breaker | AmpState

Square D BJA260401 is a 40A, 2-pole plug-in molded case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built for quick installation and reliable performance, it’s a smart choice for modern electrical distributions in homes, offices, and light industrial settings.

• Fast plug-in connection for quick installation and effortless replacement—minimizing downtime during panel servicing or upgrades.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining an adjustable thermal element for sustained overloads with a magnetic element for instantaneous short-circuit trips.
• Two-pole design interrupts both hot conductors in a circuit, ideal for 240V circuits and multi-wire branch circuits, enhancing electrical safety.
• OEM compatibility works seamlessly with matching Square D OEM load centers and panelboards, ensuring reliable fit and performance.
• Versatile applications suitable for residential, commercial, and light industrial electrical distributions, including panelboard main/branch circuit protection and equipment connections.

Technical snapshot

• Manufacturer: Square D
• Part number: BJA260401
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 40A
• Number of poles: 2
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choosing the right breaker is about matching protection to demand. The Square D BJA260401 40A 2-pole plug-in breaker pairs precise thermal-magnetic coordination with a plug-in form factor, making it ideal for fast upgrades in existing panels or new installations. It’s built to endure in daily service, offering predictable trip behavior, clear electrical protection, and straightforward maintenance in panelboards and load centers. For installers and facility managers, this breaker helps keep circuits protected without sacrificing serviceability or compatibility with your Square D panel lineup.