Square D | FAF12090 | Circuit Breaker | 90A | 1-Pole | 120V

The Square D FAF12090 circuit breaker is a purpose-built replacement designed to protect a single 120-volt circuit with a robust 90A rating. Built to slot into compatible Square D panels, this 1‑pole device delivers reliable overcurrent protection where precise specs are required.

Designed for maintenance, retrofit, and replacement projects, this part-number FAF12090 is the most reliable reference for compatibility. Before you order, confirm the fit and ratings against your panel to ensure seamless operation—the exact part number is your best reference.

Key specifications

• Amperage: 90A
• Poles: 1-Pole
• Voltage: 120V
• Part number: FAF12090

What makes this breaker unique

• Exact part-number compatibility minimizes installation guesswork and ensures your panel maintains its intended protection characteristics.
• Tailored for high-load 120V circuits within residential or light commercial panels, offering dependable protection for demanding branch circuits.
• Ideal for upgrading or restoring circuit protection in panels that specify a 90A, 1‑pole, 120V breaker.

Ideal use cases

• Replacement for a failed 90A, 1‑pole breaker in a Square D panel.
• Retrofit or maintenance projects where a 90A, single-pole, 120V device is required.
• Panel repairs or upgrades that demand exact spec parity with your existing Square D system.

Installation considerations

• Always confirm fit and ratings against your panel before ordering—the FAF12090 is the best reference for compatibility.
• Power down the circuit and follow safe electrical practices during replacement to ensure a proper, secure connection.