1CU30L | Circuit Breaker | 30A | 1-Pole | 277V

Introducing the 1CU30L Circuit Breaker—a rugged, industrial-grade solution engineered for reliable protection of 277V single-pole circuits. With a 30A rating, this breaker is purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter and quick, secure compatibility is essential.

Why choose the 1CU30L? It delivers consistent overcurrent protection for commercial and light industrial applications that run on 277V, helping prevent electrical faults from cascading into equipment damage or downtime. The 1-pole design is ideal for single hot-leg circuits in panel boards, lighting runs, and motor control circuits where a compact, straightforward protective device is required.

• Amperage: 30A
• Poles: 1-Pole (single-pole) configuration
• Voltage: 277V AC
• Usage: Maintenance, retrofit, and replacement to match system requirements
• Compatibility reference: The part number 1CU30L is the best guide for matching with your panel or enclosure

Practical use cases

• Upgrading aging control panels in facilities powered by 277V distribution where a 30A, single-pole breaker is required.
• Replacing a failed or obsolete breaker in a retrofit project to restore protected circuits without altering the overall electrical design.
• Maintenance scenarios where quick swap-in compatibility minimizes downtime and ensures consistent performance.

What problems does it solve? It provides trusted overcurrent protection for a single leg of a 277V system, helping to:

• Prevent equipment damage from short circuits or overloads
• Reduce unplanned downtime due to circuit interruptions
• Maintain safety and reliability in everyday commercial operations

Installation and compatibility tips

• Always verify fit and ratings before ordering—the 1CU30L is designed to match specific panels and catalogs, and the part number is the most reliable reference for compatibility.
• Ensure the target circuit operates at 277V and that a 30A single-pole protection aligns with your wiring and load requirements.
• Prepare for standard safety practices: de-energize equipment, verify absence of voltage, and follow local electrical codes during installation or replacement.

Designed for professionals who value precision, reliability, and straightforward upgrading of 277V circuits, the 1CU30L is a practical choice for keeping essential systems—lighting, HVAC control, and equipment feeders—protected and running smoothly. Add it to your cart to ensure you have the exact part on hand for timely maintenance and dependable operation.