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Square D 9999R44 - Type S Fusible Disconnect Interlock Kit (2-Pole)

Square D
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Square D 9999R44 is a NEMA combination starter Type S fusible disconnect electrical interlock kit designed to prevent improper switching sequences in two-pole industrial control systems. This kit is engineered for use with 8538SF or 8738SF series contactors, providing reliable electrical interlocking for safe operation in NEMA-rated environments. The unit weighs 3 lb and is manufactured in Mexico by Schneider Electric, featuring direct mounting for seamless integration with compatible starter assemblies. It is UL Listed, ensuring compliance with rigorous safety and performance standards. Typical applications include industrial control panels and motor control centers requiring secure interlocking for two-pole disconnect switches.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Country of Origin: Mexico
  • Weight: 3 lb
  • Part Number: 9999R44
  • Series: Type S
  • Application: Combination Starter
  • Disconnect Type: Fusible
  • Interlock Type: Electrical
  • Poles: 2
  • Mounting: Direct
  • Compatible Series: 8538SF, 8738SF
  • UL Listed
  • For Use With: NEMA Combination Starters
  • Function: Electrical Interlock Kit