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Square D 9999R12 - Motor Control Auxiliary 600V 4000A

Square D
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Square D 9999R12 is a contactor and motor starter auxiliary device designed for motor control and protection in industrial power systems. It features a solid-state protection system with LSH functions (Long-Time, Short-Time, and High-Range Instantaneous) and a voltage rating of 600V, supporting a continuous current rating of 4000A with a 100kA interrupting capacity at 480V. The unit has a draw-out connection configuration with 3 poles and 1 normally open (1NO) contact arrangement, weighing 5.19 lb. It complies with industry standards for heavy-duty motor control applications. This device is typically used in large industrial motor control centers and power distribution systems requiring high-current protection and precise trip coordination.

Key Features & Specifications
  • Type: Contactor And Motor Starter Auxiliary
  • Voltage Rating: 600V
  • Current Rating: 4000A
  • Functions: LSH - Long-Time, Short-Time and High-Range Instantaneous
  • Configuration: 1NO
  • Poles: 3
  • Connection: Draw-Out
  • Protection: Solid State
  • AIC rating: 100kA@480V
  • Phase: 3
  • Weight: 5.19 lb


Product Identification
  • GTIN: 00785901845805