Schluter®-DITRA-HEAT-E-RRS is a power module that extends power output when used in conjunction exclusively with the DITRA-HEAT-E-RS1 smart thermostat.
 
For large area installations, extends the power output by 15 Amps
Controlled by DITRA-HEAT-E-RS1 smart thermostat via low voltage 2 conductor 20 AWG signal wire
Supports 120 V and 240 V cables
Built in Class A GFCI