The SunTouch® SunStat® Relay R4 is designed to expand the heating capacity of electric radiant floor heating systems beyond the 15-amp limit of a single thermostat. It supports both 120V and 240V floor warming systems and can be connected through wired or wireless configurations.
The relay features integrated Class A GFCI protection, 915MHz wireless communication, and support for multiple relay connections from a single thermostat. Each relay controls up to 150 sq ft at 120V or 300 sq ft at 240V, allowing larger heated floor installations to be managed through compatible SunStat thermostat systems.
Specifications
| Specification | Details |
|---|---|
| Operating Voltage | 120/240 VAC, 60 Hz |
| Maximum Load | 15 Amps Resistive |
| Maximum Power | 1800W @ 120V 3600W @ 240V |
| Wireless Technology | 915MHz |
| GFCI Protection | Class A (5mA Trip) |
| Coverage Capacity | 150 sq ft @ 120V 300 sq ft @ 240V |
| Maximum Relay Connections | 10 Wired or 6 Wireless per Thermostat |
| Operating Temperature | 32°F to 86°F (0°C to 30°C) |
| Humidity Range | Below 90% RH Non-Condensing |
| Dimensions | 4.73" H × 3.11" W × 1.9" D |
| Warranty | 3 Years |
