ABB S261-D10 Circuit Breaker, 10A, 1-Pole, 277V

The ABB S261-D10 is a rugged circuit protector engineered for industrial electrical service, maintenance, and replacement projects. With a precise 10 A rating, a single-pole design, and a 277 V operating capacity, this breaker delivers dependable overcurrent protection for compact, hard-working electrical panels and distribution routes.

Key specifications at a glance

• Manufacturer: ABB
• Part Number: S261-D10
• Product Type: Circuit Breaker
• Amperage: 10 A
• Poles: 1
• Voltage Rating: 277 V

Why this breaker stands out

• Compact, 1-pole form factor: Ideal for space-constrained panels and control enclosures where every millimeter matters.
• 277 V applicability: Tailored for commercial and light-industrial distribution, particularly circuits powering lighting and auxiliary equipment in buildings that operate at 277 V.
• Reliable 10 A protection: Precisely sized to safeguard small-to-moderate load circuits without unnecessary nuisance trips, helping to minimize downtime.
• Proven ABB build quality: Designed for consistent performance across installation environments, with durability built into every mechanism and contact point.
• Designed for maintenance and replacement tasks: A practical choice for upgrading panels, swapping older devices, or expanding protected circuits in existing systems.

Real-world use cases

• Panel replacements in manufacturing plants where space is at a premium and precise protection is required for 277 V lighting or auxiliary loads.
• Protection of commercial lighting circuits and small distribution feeders in warehouses and retail facilities.
• Control circuits for conveyors, presses, or machine automation that operate on 277 V supply.
• Temporary installations during facility upgrades or maintenance workflows where quick, reliable protection is essential.

Compatibility and installation guidance

• Verify fit by part number: S261-D10 must match your panel enclosure and bus-bar style, and meet your application requirements.
• Ensure the system voltage and load characteristics align with the 277 V, 10 A specifications for safe, effective operation.
• Follow standard electrical codes and manufacturer installation guidelines when mounting, wiring, and securing the device in a panel board.
• For certainty on compatibility or if you’re reconciling multiple part numbers, reach out with your project details—the team can assist with part-number matching and application fit.

Need help matching a part number or confirming compatibility? Message us and we’ll help.