Square D | 991150 | Circuit Breaker | 50A | 1-Pole | 120V | Bolt-On

The Square D 991150 Circuit Breaker is a purpose-built solution for protecting 120V circuits with demanding loads. This 50A, 1-Pole, bolt-on device is designed for maintenance, retrofit, and replacement projects where exact compatibility matters. If your panel or setup requires a bolt-on 1-pole breaker with a 50A rating at 120V, this part number is your best reference.

• Amperage: 50A
• Poles: 1-Pole
• Voltage: 120V
• Mounting: Bolt-On
• Part Number: 991150 (best compatibility reference)

Why choose this Square D 991150 for your project? The bolt-on design delivers a secure, reliable connection within compatible Square D panels, reducing installation time and downtime during replacements or upgrades. With a precise 50A rating, it provides robust overcurrent protection for essential 120V circuits, helping prevent wiring damage and electrical fires in both residential and light commercial settings.

Ideal use cases and who benefits

• Maintenance and service upgrades where a direct 991150 replacement is required for existing Square D installations.
• Retrofit projects that need to elevate circuit protection without changing the panel architecture.
• Replacement scenarios where compatibility with bolt-on, single-pole breakers is specified and a 120V circuit must be safeguarded at 50A.

Practical guidance to ensure a smooth fit: always confirm fit and ratings before ordering. Rely on the 991150 part number as the primary compatibility reference, and match it to panels and enclosures that accept bolt-on, 1-pole breakers for 120V circuits. When installing, follow standard electrical safety practices and the panel manufacturer's instructions to ensure a secure, code-compliant upgrade or replacement.