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September 08, 2026 2 min read
Specification sheet for the Stelpro STZW402 KI Z-Wave Plus Electronic Thermostat for smart home electric heating, up to 4000 W.
Specification sheet for the Stelpro STZW402 KI Z-Wave Plus Electronic Thermostat for smart home electric heating — up to 4000 W.
KI Z-Wave thermostats can easily be integrated into your home's Z-Wave network, so you can adjust the temperature setpoint of rooms in your home from a distance.
| Color | White |
| Finish | Molded plastic |
| Wattage & Voltage | 150 W to 2000 W @ 120 V; 300 W to 4000 W @ 240 V |
| Temperature Range | 41°F to 86°F |
| Dimensions | 4 7/8 in. wide x 4 7/8 in. high x 1 3/8 in. deep |
| Warranty | Three years |
| Product Code | Watts (Min/Max) | Voltage | Amperage | Frequency |
| STZW402WB+ | 150/300 – 2000/4000 | 120/240 V | 16.7 A | 50/60 Hz |
For home automation system compatibility and instructions on connecting to your KI thermostat, visit www.stelpro.com.
Manufacturer: Stelpro reserves the right to modify descriptions, manufacturing specifications, or prices without prior notice. No returns accepted on optional-color products. For all the latest models and prices, refer to www.stelpro.com.
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