Allen-Bradley 1489-A1C010R - 1A, 277VAC / 48VDC, 1-Pole, Circuit Breaker

Meet the Allen-Bradley 1489-A1C010R—a compact, reliable single-pole circuit breaker engineered for everyday protection in demanding industrial environments. With a precise 1 A current rating and a dual voltage capability of 277VAC / 48VDC, this device delivers targeted overcurrent protection for both AC power paths and DC control circuits within the same panel ecosystem.

Designed for flexible integration in panelboards, switchboards, and control panels, the 1489-A1C010R simplifies protection strategies in distributed automation setups. Its 1-pole configuration makes it ideal for safeguarding a single hot conductor in space-constrained installations without complicating the overall circuit design. This is particularly valuable in control cabinets and motor control centers where reliable protection of control circuits and small loads is essential to keep lines running smoothly.

• Current rating: 1 A
• Voltage rating: 277VAC / 48VDC
• Poles: 1-Pole
• Breaker type: Circuit Breaker
• Applications: panelboards, switchboards, control panels, and motor control centers

Practical scenarios where this model shines include OEM equipment enclosures, automation cabinets in manufacturing lines, and service upgrades where a low-amperage protection device is required for delicate control electronics. The dual voltage rating removes the need to juggle separate protection devices for AC power and DC control logic, simplifying inventories and maintenance routines.

Why choose this model? It delivers dependable overcurrent protection precisely where you need it—protecting wiring, relays, PLC I/O, sensors, and small motor starters from overloads without introducing unnecessary disturbances in your automation flow. For teams upgrading control panels or integrating new equipment, this breaker offers a straightforward, compatible solution that aligns with industrial distribution practices and OEM installation standards.

Quick tips for optimal use: verify the panel’s compatibility with single-pole protection components, plan for clear labeling of the protected circuit, and pair this breaker with properly sized conductors to maintain reliable trip performance. In environments where both AC and DC control systems are present, the 277VAC / 48VDC rating ensures you have a single, coherent protection strategy across the panel, reducing complexity and downtime.