Stelpro Canada

It appears you’re in the US. You’re currently viewing the Canadian website. Note that currencies and availability on the American and Canadian websites differ.

Vous semblez provenir des USA, mais vous êtes actuellement sur le site canadien. Veuillez noter que les devises et la disponibilité des produits diffèrent d’un site à l’autre.

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Rester sur le site canadien

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Aller sur le site américain

All Systems Operational

Since Tuesday, 23 February 2021, 04:00
Eastern Time Zone

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Low Voltage Electromechanical Relays


Some relays can be installed in a unit's junction box while others cannot. A variety of models are available to meet all your needs.

Product images

  • RM120T | FACE
  • RM240T | FACE
  • RM347T | FACE
  • RM347C | FACE


  • With 24 V transformer (except for RM347C)
  • Compatible with T822K1034, T87K1015 and ET180 thermostats
  • Can be installed in heating unit junction box (check each heater's list of accessories)
  • 120 V to 600 V depending on the model


  • All or nothing (on/off)
  • With a 24 V transformer (with exception of the RM347C w/o transformer)
  • Wompatible with the T822K1034, T87K1015 and ET180 thermostats (the RM347C w/o a transformer is also compatible with the STE241 and D010 thermostats)
  • Installing more than four relays without a transformer to the same thermostat is not recommended (two relays without a transformer if connected to a STE241 thermostat)
  • No additional relay can be connected to the same control circuit as a relay with a transformer


  • These relays can be installed in an external junction box
  • These relays may or may not be installed in the junction box of the heating unit (see the accessories table for the heating unit)


  • One year