The Zooz ZEN78 800LR switches 240 V loads up to 40 A with full power metering, for water heaters, compressors, and other heavy equipment.
Works on integrations
Protocols
Setup guides
Roles it can fill
Reports watts, kWh, volts, and amps to Home Assistant, so a water heater or compressor can feed energy dashboards and load-shedding automations. An optional dry contact switch can be wired in for local override.
Where to buy
Recipes using this device
Energy
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v1.0.0
High Energy Usage Alert
Installs a Home Assistant automation that watches your whole-home power draw and warns you when it stays high for longer than it should, so a heater or a forgotten appliance does not run all day unnoticed. Add speakers to hear it, add a smart plug to shed the load.
Safety
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v1.0.0
Leak Auto Shutoff
Installs a Home Assistant automation that closes your water shutoff valve the instant a leak sensor goes wet, so a burst hose or a failed valve stops flooding within seconds. Add a smart plug to cut the appliance, a siren, and a speaker.
Recipes that can use it
These recipes are built around other hardware, and pick this device up as an optional extra.