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Stelpro > Controls > Relays > RM120T-RM240T-RM347C-RM347T

Low Voltage Electromechanical Relays

RM120T-RM240T-RM347C-RM347T

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.

With 24 V transformer (except for RM347C)
Compatible with T822K1018U and T87K1007U 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)
Compatible with the T822K1018U and T87K1007U thermostats (the RM347C w/o a transformer is also compatible with the STE241 thermostat)
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)


Code	Description	Color
RM120T	Electro. mecha. relay c/w transformer 24 V
RM240T	Electro. mecha. relay c/w transformer 24 V
RM347C	Electro. mecha. relay w/o transformer 24 V
RM347T	Electro. mecha. relay c/w transformer 24 V