Square D | 992120 | Circuit Breaker | 20A | 1-Pole | 120V | 10kA | Bolt-On

Square D 992120 Circuit Breaker is a purpose-built bolt-on protection device designed for precise compatibility, reliable performance, and straightforward replacement in your electrical panel. This 20A, 1-pole, 120V breaker is the dependable choice when maintenance, retrofit, or replacement requires exact specs and a secure, snap-in fit.

• Amperage: 20A
• Poles: 1-Pole
• Voltage: 120V
• Interrupting Rating: 10kA
• Mounting: Bolt-On

Designed for use in Square D panels that accept bolt-on, single-pole breakers, this unit is ideal for fixing a faulty breaker, upgrading a circuit, or performing routine panel maintenance. The 992120 part number is the most reliable reference for compatibility, so you can shop with confidence and reduce the risk of mismatches during replacements or retrofits.

Where this breaker shines

• Residential and light commercial applications: Protect dedicated circuits that require a precise 20A, 120V supply with solid, predictable tripping behavior.
• Retrofit and replacement: When panels demand a bolt-on, single-pole solution with a 10kA interrupting capacity, this model aligns with standard Square D specifications.
• Maintenance-friendly: Clear reference via the 992120 part number helps ensure you’re ordering the exact unit needed to restore your panel’s protective function.

Practical considerations for installation and use

• Compatibility check: Confirm the panel accepts bolt-on, single-pole 20A 120V breakers and that the 10kA interrupting rating meets your system’s fault-current requirements.
• Safety first: Always power down the main disconnect and follow panel manufacturer guidelines before replacement.
• Fit and ratings: Double-check the exact fit by matching the part number (992120) with your panel’s labeling and service notes to avoid compatibility issues.

This Square D circuit breaker is more than a component—it's a precise, trusted solution for keeping circuits protected and systems running smoothly. If you’re tackling a retrofit, replacement, or maintenance project, choosing the 992120 ensures you’re selecting a design that aligns with Square D’s standard of reliability and compatibility.