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Honeywell T4398A1021 - Premier White High Performance Electric Heat Thermostat for Electric Baseboard Heat.

Item: T4398A1021/U
MFR: T4398A1021/U
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High Performance Electric Heat Thermostats provide precise line voltage control of resistive-rated electric heating equipment.
  • For control of resistive-rated baseboard electric heaters.
  • Extremely sensitive to temperature changes.
  • Replace virtually all standard wall-mounted line voltage thermostats.
  • Color-coded leads allow easy installation.
  • Include long-lasting Micro Switch™ mechanism.
  • Rugged, plastic mounting base.
  • Cover thermometer indicates room temperature.
  • Well suited for upgrades and high-end new construction.
  • Mounts directly on vertical 2 x 4 in. outlet box, or on 4 x 4 in. outlet box.


NameHoneywell T4398A1021 - Premier White High Performance Electric Heat Thermostat for Electric Baseboard Heat.
Gemaire Item NumberT4398A1021/U
Manufacturer Product NumberT4398A1021/U
SKU - PIM Number1403693698051
ERP Number290223
Unit of MeasureEA
Weight0.5 LB
Length4.5 IN
Width3.0 IN
Height2.8 IN
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginMEX
Voltage120/208/240/277 VAC
Electrical RatingNon-inductive resistive 22A at 120/208/240 VAC. 19A at 277 VAC.
Built In Wi-FiNo
Stages Cool0
Stages Heat1
ApprovalsListed; File No. E4436, Guide No. XAPX
Temperature Range50°F to 80°F (10°C to 26.6°C)
Warranty Offered1 Year
IncludesThermometer, range stops and locking cover screws
CSA ListingYes
Switch ActionSPST
Sensing ElementYes
Differential Temperature2°F; 1°C
Ambient Temperature Range50°F to 80°F (10°C to 26.6°C)
UL ListedYes
ApplicationElectric baseboards, convectors and fan forced heaters (resistive rated loads).
Electrical Connection6 in. (150 mm) copper leadwires, suitable for connecting to aluminum wiring if approved CO/ALR solderless connectors are used.
GEM - Case Quantity
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