Allen-Bradley 1492-SP1B010-N 1A 1-Pole 277 V Circuit Breaker

The Allen-Bradley 1492-SP1B010-N 1A 1-Pole 277 V Circuit Breaker is a precise, dependable protection solution for single‑phase circuits in commercial and light industrial environments. With a 1 A current rating and a single-pole design, this breaker delivers targeted overload protection exactly where you need it without unnecessary interruptions to your operation.

Key specifications at a glance

• Brand: Allen-Bradley
• Part number: 1492-SP1B010-N
• Current rating: 1 A
• Poles: 1
• Voltage rating: 277 V

Why this 1492-SP1B010-N stands out

• Precise protection for small loads: A 1 A rating is ideal for lighting circuits, control circuits, and other modest power draws in 277 V environments, helping prevent nuisance trips while safeguarding equipment.
• Space-efficient, single-pole design: The 1-pole configuration simplifies wiring and fits neatly into standard panel arrangements where single-phase protection is required.
• 277 V readiness: Specifically suited for commercial distribution and lighting systems that operate at 277 V, reducing the need for awkward conversions or adapters.
• Trusted engineering from a legacy brand: Allen-Bradley has a long history of reliable electrical protection, so you’ll have confidence in performance and compatibility within compatible panels and assemblies.

Ideal use cases

• Protecting small lighting circuits in commercial offices, retail spaces, and warehouses that run on 277 V.
• Guarding single-phase control circuits for fans, pumps, and other modest loads in industrial or institutional settings.
• Serving as a direct replacement in panels that specify the 1492-series or similar form-factor, ensuring consistent performance and fit.

Practical guidance for installation and maintenance

• Verify compatibility with your panel or distribution system and confirm the form factor and trip characteristics match your installation requirements.
• Use the correct mounting and termination method specified for 1492-series breakers to ensure reliable seating and contact performance.
• Pair this 1A breaker with loads that align with its rating to minimize nuisance trips and maximize system uptime.
• Keep panel labeling up to date to reflect the 1492-SP1B010-N’s current rating and purpose, aiding future servicing or replacements.

When you need focused, reliable protection for a dedicated 277 V circuit with a compact, single-pole design, the Allen-Bradley 1492-SP1B010-N 1A 1-Pole 277 V Circuit Breaker delivers precise performance you can trust. It’s a thoughtful choice for maintaining safe, uninterrupted operation in commercial electrical systems.