- Secondary relay for thermostats
- Built-in self-testing GFCI (Class A)
- Dual voltage: 120 V and 240 V
- Manufacturer part number: USG-4000
HL-REL let’s you expand your floor heat system thereby increasing the square footage your thermostat can control. Each Power Module allows for another 15 Amps of current. Up to 16 power modules may be connected in series via low voltage signal wire to a single thermostat. A built-in GFCI monitor and test function allows proper maintenance of your system. The built-in LED displays current status of the floor heat system.
|Dimensions||15 × 10 × 10 cm|
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