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Allen-Bradley 509-COB-A3H - NEMA Size 2 Motor Starter 45A

Allen-Bradley
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Allen-Bradley 509-COB-A3H is a NEMA Size 2, 3-pole non-reversing motor starter engineered for full-voltage starting and protection of three-phase induction motors. This open-style unit supports a continuous current rating of 45A with a service limit of 52A, operates at a maximum voltage of 600 VAC, and is typically applied at 440/480V to control motors up to 25 HP. The starter features pressure-type power terminals accepting 14-4 AWG wire, is designed for vertical mounting, and weighs 5.1 lb. It complies with NEMA standards for industrial motor control and is suited for applications requiring reliable, full-voltage starting in manufacturing, pumping, and material handling systems.

Key Features & Specifications
  • Type: Motor Starter
  • Amperage: 45A continuous, 52A service limit
  • Voltage: 600 VAC max, 440/480V typical operation
  • Poles: 3
  • Mounting Type: Open style, vertical position
  • NEMA Size: 2
  • Non-reversing starter
  • Phase: 3-phase
  • Control Voltage: 440/480V 50/60 Hz
  • Horsepower Rating: 25 HP at 460-480V
  • Power Terminals: Pressure type, wire size 14-4 AWG
  • Mechanical Life: 10 million operations
  • Overload Relay: Eutectic alloy (sold separately)
  • Weight: 5.1 lb