Square D | GB2CB16 | Circuit Breaker | 10A | 1-Pole | 277V

Meet the Square D GB2CB16 circuit breaker — a compact, dependable 1-pole unit engineered for protection of a dedicated 277V circuit at 10 amps. This replacement part is ideal for maintenance, retrofit, and replacement projects where exact specifications matter, delivering reliable overcurrent protection when it’s most needed.

Key specifications

• Amperage: 10 A
• Poles: 1-Pole
• Voltage: 277 V
• Part number: GB2CB16
• Brand: Square D

Why choose the GB2CB16 for your panel

This breaker is designed for exact-fit compatibility with Square D panels and legacy electrical installations that require the GB2CB16 specification. By matching the exact part number, you ensure correct mounting, electrical characteristics, and reliable performance, reducing the risk of misfits that can cause nuisance trips or improper protection.

Use cases and ideal applications

• Maintenance and replacement in existing Square D electrical systems where a single-pole, 10A, 277V breaker is required
• Retrofit projects where electrical loads are reallocated to a dedicated 277V circuit
• Lighting, receptacle, or small-equipment circuits in commercial settings that operate at 277V

What problems this breaker helps prevent

• Overcurrent on a dedicated 277V circuit, protecting wiring and devices from damage
• Unplanned outages due to incompatible or mismatched replacement parts
• Installation delays by providing a straightforward, exact-fit solution for compatible panels

Practical tips for installation and compatibility

• Always verify that your panel accepts a GB2CB16-style breaker by cross-checking the part number before ordering
• Turn off the main power and follow manufacturer safety guidelines when replacing a breaker
• Ensure the overall system voltage and circuit amperage align with the 277V, 10A specification to maintain proper protection levels

For dependable, straightforward circuit protection in 277V installations, the Square D GB2CB16 delivers a precise, ready-to-install solution. Use the part number GB2CB16 as the definitive reference to confirm compatibility and ensure a seamless replacement or retrofit experience.