Sub Control.

If a mat or cable system requires more than 15 Amps, install SunStat Relays. They connect directly to SunStat thermostats for simple control of larger systems. Each SunStat Control (120 or 240 VAC) can accommodate up to 10 relays. The Relay C3 is compatible with the SunStat Command and Connect thermostats.



  • Built-in GFCI
  • Built-in 15-Amp relay controls up to 150 sq. ft. at 120V or 300 sq. ft. at 240V.
  • Daisy-chain up to ten SunStat Relays for control of up to 1,500 sq. ft. at 120 VAC or 3,000 sq.ft. at 240VAC.
  • 3-year warranty

# 19981019088