Square D BJA260501 - 50 A, 2-Pole Plug-In Circuit Breaker | AmpState

Upgrade or outfit your panel with confidence using the Square D BJA260501 — a 50 A, 2-pole plug-in molded case circuit breaker engineered for dependable branch-circuit protection in panelboards and load centers. Its fast plug-in design means fewer steps during installation or replacement, so you spend less time servicing critical circuits and more time ensuring safe, uninterrupted power for your home or business.

• Fast plug-in connection enables quick installation and straightforward field replacements, reducing downtime and labor costs on service calls.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads and short-circuit events, helping prevent nuisance trips and equipment damage.
• 2-pole, 50 A configuration protects 240 V circuits—ideal for multi-wire branch circuits and equipment that require simultaneous protection on two hot legs.
• OEM-compatible design ensures a precise fit with matching Square D load centers and panelboards, maintaining system integrity and electrical reliability.
• Versatile application suited for residential, commercial, and light industrial environments where dependable overcurrent and short-circuit protection is essential.

Technical snapshot
Type: Thermal-magnetic molded case circuit breaker
Part Number: BJA260501
Amperage: 50 A
Poles: 2
Mounting Style: Plug-in
Application: Branch circuit overcurrent and short-circuit protection

Who benefits most from the Square D BJA260501? Electrical professionals and property managers who need reliable, fast-to-install protection for critical circuits in panelboards and load centers. It’s an especially strong choice when upgrading existing panels, performing routine maintenance, or stocking a field service van with a ready-to-go replacement breaker that minimizes downtime.

Practical usage tips to maximize performance: verify the panelboard is compatible with BJA-series plug-in breakers, ensure proper alignment with bus stabs during installation, and follow standard safety procedures to lockout and test circuits after replacement. Keep a spare on hand for quick replacements in commercial spaces or busy residential settings to maintain continuous service and protect wiring, outlets, lighting, and equipment from overload and fault currents.