Cadet T521W Single Pole Wall Thermostat 22A 240V

Product Description

The CADET T521W is a single-pole, non-programmable wall mount thermostat designed for electric resistance heating systems in residential and light commercial applications. Built with a bi-metal sensing element, it responds to ambient temperature changes and opens or closes the heating circuit to maintain the set point. The simple-twist dial gives installers and end users a straightforward, no-menu interface. Rated at 22 amps, 240 volts, and 5000 watts, the T521W handles the load demands of standard electric baseboard heaters and wall heaters without requiring a relay or additional control device.

This thermostat is intended for single-pole line-voltage electric heating circuits in bedrooms, offices, garages, and similar spaces where a basic, reliable temperature control is required. It mounts directly to a standard single-gang electrical box. The white finish suits common residential wall trim. It is not suitable for low-voltage HVAC systems or heat pump applications. No programming, batteries, or display are involved, making it a practical choice for straightforward electric heat zones.

Key Features

• Bi-metal sensing element provides reliable mechanical temperature response
• Single-pole control rated for up to 22 amps and 240 volts
• 5000-watt load capacity handles standard electric baseboard and wall heater circuits
• Non-programmable twist dial for simple, direct setpoint adjustment
• White finish for standard residential wall plate compatibility
• Lightweight construction at 0.46 pounds for easy single-gang box installation

Compatibility

Designed as an OEM-style replacement or new-installation thermostat for single-pole, line-voltage electric resistance heating circuits. Also referenced under part numbers T521-W and X-08300.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Turn off the branch circuit breaker and verify the circuit is de-energized with a voltage tester before making any wiring connections. This is a line-voltage device; do not install on low-voltage thermostat wiring. Mount to a standard single-gang electrical box and ensure the box is rated for the connected load.

Technical Specifications

• Control Style: Single Pole
• Maximum Voltage: 240 volts
• Maximum Amperage: 22 amps
• Wattage: 5000 watts
• Material: Bi-metal
• Color / Finish: White
• Weight: 0.46 pounds

Standard Information

• Brand: CADET
• Manufacturer Part Number: T521W