Square D BJA260404 - 40 A, 2-Pole Plug-In Circuit Breaker | AmpState

Introducing the Square D BJA260404 from AmpState—a 40A, 2-pole plug-in molded-case circuit breaker designed to deliver dependable branch-circuit protection in panelboards and load centers. Built for fast installation and straightforward replacement, this unit blends Square D reliability with plug-in convenience you can trust on every service call or upgrade.

• Fast plug-in connection for quick installation and hassle-free replacement in compatible panelboards and load centers.
• Thermal-magnetic trip unit provides stable overload protection and rapid short-circuit disconnection, maintaining consistent performance across diverse loads.
• 2-pole, 40 A rating for 240 V circuits, ideal for protecting dual-leg circuits and shared neutral configurations common in residential and light commercial setups.
• Plug-in mounting simplifies service and upgrades by eliminating complex wirings during replacement; designed to fit with matching OEM Square D load centers.
• Wide application readiness suitable for residential, commercial, and light industrial environments where reliable overcurrent protection is required.

Why this breaker stands out

Designed for fast, contractor-friendly service, the plug-in design reduces installation time and downtime during maintenance. The thermal-magnetic trip unit ensures predictable protection—overload currents trigger a controlled response, while short-circuit events prompt rapid disconnection to guard wiring and connected equipment.

Ideal use cases

• Replacing a failed 2-pole 40 A breaker in a residential panel or a light commercial distribution board.
• Protecting 240 V circuits such as well pumps, HVAC controls, or dual-leg feeders in small business applications.
• Retrofit projects where speed and compatibility with OEM panelboards are critical.

Technical snapshot

• Manufacturer: Square D
• Part number: BJA260404
• Type: Thermal-magnetic molded-case circuit breaker
• Amperage rating: 40 A
• Number of poles: 2
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Square D BJA260404 for reliable, ready-to-install protection that keeps your panelboard or load center running safely and efficiently. Ideal for professionals who value performance, ease of installation, and OEM compatibility—order today from AmpState.