1CU10R | Circuit Breaker | 10A | 1-Pole | 277V

The 1CU10R is an industrial-grade circuit breaker designed for 277V single-pole circuits, delivering precise 10A protection for maintenance, retrofit, and replacement projects. Built to perform in demanding environments, this breaker helps safeguard your critical electrical loads with dependable interrupting capability when faults occur.

Key capabilities that matter in real-world systems

• Amperage: 10A, providing targeted protection for dedicated 277V circuits.
• Poles: 1-Pole configuration, guarding a single live conductor in your panel.
• Voltage rating: 277V, ideal for commercial and industrial distributions common in lighting and control circuits.
• Application fit: Designed for maintenance, retrofit, and replacement scenarios where exact specifications are required.

Ideal use cases

• Maintenance shutdowns and routine panel servicing on 277V systems where a precise 10A protection level is needed.
• Retrofit projects converting or upgrading panels to support 277V single-pole protection without changing other components.
• Replacement of failed breakers in commercial/industrial panels where the 1CU10R’s rating matches the original spec.

Fit, compatibility, and installation notes

Before ordering, verify the breaker matches your panel’s requirements. The part number 1CU10R is the most reliable reference for compatibility, ensuring correct fit and ratings for your 277V single-pole circuit. When installing, follow your facility’s safety protocols and de-energize the circuit before any replacement or retrofit work.

Why this 1CU10R stands out

• Specifically engineered for 277V systems, avoiding the common mismatches that occur with breakers intended for other voltages.
• Compact, single-pole design optimized for straightforward replacements in existing panels, reducing downtime during maintenance or upgrades.
• Clear, unambiguous rating alignment—10A, 1-Pole, 277V—so you can plan and execute panel work with confidence.

For professionals maintaining commercial or light-industrial electrical infrastructure, the 1CU10R delivers precise protection where it matters most. Use it for dependable, spec-accurate circuit protection in your 277V installations—and rely on the part number to confirm compatibility every time.