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Relay 12V 40A SPST Normally Open



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Relay 12V 40A SPST Normally Open

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Backwoods uses these to interface charge control and inverter 12 volt aux output to battery vent fans and 2 wire generator auto start comands.    Basic wiring diagram for battery vent fan wiring included.

1/4" tabs accept standard female quick-disconnects or commonly used four and five pin OEM relay sockets. 


  • Coil voltage: 12VDC
  • Coil resistance: 85ohm
  • Current consumption: 145mA
  • Minimum pull-in voltage: 8.4VDC
  • Max release voltage: 1.2VDC
  • Dimensions: 1" (H) x 1" (W) x 1" (D) (less mounting tab)      
  • Model: CMA31-DC12V-A  

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