ABB S201UP-K20 Circuit Breaker, 20A, 1-Pole, 277V

ABB S201UP-K20 is a rugged, industrial-grade circuit breaker designed to protect single-pole, 277V electrical circuits with dependable, fast-acting overcurrent protection. Engineered for service, maintenance, and replacement projects, this 20 A device helps keep industrial panels and control systems operating safely and with minimal downtime.

• Amperage: 20 A
• Poles: 1 (single-pole)
• Voltage rating: 277V
• Part number: S201UP-K20
• Purpose: Industrial electrical service, maintenance, and replacement applications

Why choose the S201UP-K20 for your build or retrofit? It delivers compact, dependable protection for individual hot circuits in commercial and industrial environments that use 277V systems. The one-pole design simplifies integration into existing panels and control cabinets, making it a practical choice for lighting feeders, small motor circuits, and feeder lines where robust protection is essential.

Key benefits and practical advantages

• Precise overcurrent protection: Quickly interrupts faults to prevent damage to wiring and equipment.
• Streamlined replacement: A straightforward swap in compatible ABB panels minimizes downtime during maintenance or upgrades.
• Compatibility-focused: Verified fit by part number and application requirements to help ensure you’re choosing the right breaker for your panel.
• Industrial-grade reliability: Built to withstand demanding environments common in facilities, warehouses, and manufacturing settings.

Ideal use cases

• Single-phase circuits feeding lighting and receptacle banks in warehouses or manufacturing floors operating at 277V systems.
• Replacement in existing ABB panels where a 20 A, 1-pole breaker is specified.
• Control circuits for machines and equipment within industrial control panels that require reliable short-circuit and overload protection.

How to ensure compatibility

To confirm this breaker matches your installation, verify the part number S201UP-K20 against your panel or enclosure’s requirements and ensure a 277V, 1-pole configuration aligns with the circuit you’re protecting. If you’re unsure about fit or compatibility, you can reach out for guidance—we’re ready to help confirm the right part number and application fit for your specific setup.

With the ABB S201UP-K20, you’re choosing a trusted solution designed for durability, easy maintenance, and dependable protection in demanding industrial environments.