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Allen-Bradley 1489-M1C040 - 4A Molded Case Breaker 277V

Allen-Bradley
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The Allen-Bradley 1489-M1C040 is a molded case circuit breaker designed for branch circuit protection in industrial control panels. This single-pole unit is rated for 4A at 277V AC, providing thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions to safeguard against overloads and short circuits. The compact breaker features a feed-thru connection and weighs just 0.24 lb, making it suitable for space-constrained installations. It complies with industry standards and carries a 10kA interrupting capacity at 277V for reliable fault current interruption. This 1-phase breaker is commonly used in motor control centers, panelboards, and other industrial power distribution applications requiring precise overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Voltage Rating: 277V AC
  • Current Rating: 4A
  • Poles: 1
  • Phase: 1
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 10kA@277V
  • Connection: Feed-Thru
  • Weight: 0.24 lb


Product Identification
  • UPC: 885630619576