Allen-Bradley 1489-A1D030 Circuit Breaker, 3A, 1-Pole, 277V

The Allen-Bradley 1489-A1D030 Circuit Breaker is built for demanding industrial electrical service, maintenance, and replacement projects. This 3 A, 1-pole device is rated for 277V, making it an exact fit for single‑phase circuits in commercial and industrial environments. Use the part number 1489-A1D030 to confirm compatibility with your panel and application requirements.

Designed for reliable field service, this OEM breaker slots into standard Allen-Bradley panels that support single-pole, 277V protection. It delivers precise overcurrent protection for smaller loads while boosting uptime in production lines, warehouses, and data centers. With genuine Allen-Bradley construction, you’ll experience seamless electrical performance and consistent trip characteristics that align with your existing infrastructure.

• 3 A – protects single‑phase circuits without unnecessary nuisance trips
• 1-pole configuration for straightforward single‑phase protection
• 277V rating suitable for common industrial lighting and control circuits
• Genuine Allen-Bradley part ensures mechanical fit and electrical performance within your panel
• Quick, reliable swap to minimize downtime during maintenance or retrofit

Compatibility and installation at a glance:

• Verify fit by part number (1489-A1D030) and ensure alignment with your panel’s frame and bus compatibility
• Confirm application requirements match: voltage class (277V), amperage (3 A), and single‑pole configuration
• Follow proper lockout/tagout procedures and consult your panel’s installation manual when replacing a protective device

Ideal use cases include spare parts for ongoing maintenance in manufacturing lines, quick replacements in service panels to restore protection, and retrofit projects requiring a 277V, single‑pole breaker. For facilities relying on consistent, OEM‑adapted components, the 1489-A1D030 offers a dependable, long‑term solution that integrates smoothly with existing Allen-Bradley hardware and electrical schematics. If you need help confirming compatibility or matching the exact part for your setup, our team is available to assist with guidance based on your application needs.