Line-voltage · Cadet

Cadet T522-W Line-Voltage Thermostat

Line-voltage, 240 V, 5,280 W

At a glance

A fit for baseboard and wall heaters.

Strong points
Rated 5,280 W.
Weak points
Household-voltage wiring.
Best match
Baseboard and wall heaters.
Works with
Mechanical knob
Connectivity
Wired
Schedule
non-programmable
Display
analog
Power
Corded Electric
Voltage
240 V
Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Updated October 2026

Will it work with your system?

Works well with

  • Baseboard and wall heaters
  • Room-by-room electric heat

Check first if you have

  • Furnaces, boilers and heat pumps (24 V)
  • Loads above its rating

What it controls

The Cadet T522-W Line-Voltage Thermostat is a line-voltage for electric heat that runs at line voltage (240 V per the maker).

Its maker rates it for 5,280 W. At 240 V that covers heaters totalling about 5,280 watts (watts = amps × volts). Check your heaters' load.

It's double pole. Double-pole models break both live legs of a 240-volt circuit and usually give a true off position.

Connectivity: Wired, so the schedule and setpoint can be changed from a phone.

This isn't a 24-volt job. Turn the breaker off, check with a tester, and hire an electrician for anything you're unsure of. Why baseboard heat needs its own thermostat.

Also on the listing: dimensions of 4.05 in (D) x 8.55 in (W) x 2.15 in (H) and a analog.

Warranty, per the listing: Warranty.

Compatibility and specs

These come from the maker's listing for this exact model; the source of each is marked. Anything the maker leaves out is marked not stated.

Model numberT522-WRetailer
Model nameT522-WRetailer
Dimensions (seller)4.05"D x 8.55"W x 2.15"HRetailer
Works withMechanical knobRetailer
ConnectivityWiredRetailer
PowerCorded ElectricRetailer
Voltage240 VRetailer
DisplayanalogRetailer
Mounting / installationWall MountRetailer
Max load5280 WRetailer
WarrantyWarranty.Retailer
MaterialPlasticRetailer
Schedulenon-programmableRetailer
Polesdouble poleRetailer

Strong points and weak points

Strong points

  • Rated 5,280 W
  • double pole
  • Wi-Fi control
  • 240 V

Weak points

  • Household-voltage wiring
  • One thermostat per heater circuit

Wiring and install notes

  • Compatibility statements are the maker's own. Confirm with the maker's compatibility checker, turn the power off before wiring, and leave line-voltage and furnace work to a licensed electrician or HVAC technician.

Thermostats to compare it with

FAQ

How many heaters can the Cadet T522-W Line-Voltage Thermostat control?
As many as fit within its rating of 5,280 W: add the heaters' watts and divide by the voltage.
Can the Cadet T522-W Line-Voltage Thermostat run a furnace or heat pump?
No. It's a line-voltage thermostat for electric resistance heat; central systems use 24-volt thermostats.

Other line-voltage thermostats with similar wiring

All line-voltage thermostats in one grid · Every Cadet control listed

Our take

A fit for baseboard and wall heaters.

Where to get it

The link goes to this exact model's listing. Check that the box includes the trim plate or C-wire adapter you need, and confirm your wiring with the maker's compatibility checker before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure