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A 275 Amp Solid State DC Contactor with Timer Functions

InPower’s SSC42-275 is a 274 Amp part of our solid-state DC contactor family. Low on-resistance provides for cool operation with high current fly back diodes, providing protection from surge current and voltage spikes. Used for high current battery control to loads with a variety of inputs for versatility in operational controls. LED status indicator denotes on and off status of the device.

Solid State Module Power Disconnect [ SSC42-275 ]

Key Features:

  • Over-current, under-voltage and loss of ground protection
  • Multiple internal operational modes
  • 275 Amps with 800 Amp surge capability
  • User-selectable power shut-off timer operation
  • Adjustable timer settings
  • Selectable momentary on latching on-off operation
  • Protective battery and load connector covers available


  • Under voltage shutdown: 7.5 V for 150 milliseconds
  • Current rating: 275 Amps, 800 Amps surge
  • Turn on delay: 10 milliseconds
  • Turn off delay: 10 miliseconds plus off delay timer
  • Input control: 2.1 Vdc to 2.6 Vdc
  • Weight: .30 lbs
  • Power Terminals: 3/8″” X 16 threaded
  • Dimensions: 4.15″” X 4/15″” X 1.5″”H

System Diagrams:

Installation Drawings:

Patent Nos. :


Product Literature and Resources:

SSC42-275 Data Sheet

SSC42-275 Owners Manual

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