Honeywell T4398A1021


Thermostat, SPST Switch

T4398A1021 157324
Average Rating: 5
Read Reviews (3) Write a Review
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ItemLine Voltage Thermostat
TypeHeating Only
Switch TypeSPST
Switch ActionOpen on Rise
Number of Switches1
Control Range (F)50 to 80
Differential (Deg. F)+/- 2
Height (In.)4-1/2
Width (In.)2-7/8
Depth (In.)2-5/8
Sensor TypeVapor-filled dual-diaphragm
CharacteristicsContoured, Euro-White Cover, Thermoplastic Base
For Use With Electric resistive Heating
Application Heating Only
Voltage Range120 to 277VAC
Contact Rating Resistive @ 120V (A)22
Contact Rating Resistive @ 240V (A)22
Contact Rating Resistive @ 277V (A)19
Includes Unique Dual Diaphragm Technology for Precise, Accurate Temperature Control
Weight 0.550000


Line Voltage ThermostatsMount to standard 2" x 4" vertical box. UL Listed, except 4NE56. Additional agency standards as noted.

Electric Heat Thermostat, Contact Current Rating Resistive @ 120/208/240 VAC 22 Amps, Contact Current Rating Resistive @ 277 VAC 19 Amps, Sensor Vapor Filled, Dual Diaphragm, Switch SPST, Temperature Range 50 to 80 Degrees Fahrenheit, Differential Range 2 Degrees Fahrenheit, Dimension 2 1/2 Inches, Height 4 3/8 Inches, Width 2 7/8 Inches, Depth 2 1/2 Inches

Customer Reviews

Average Product Rating: 5
based on 3 reviews


Monday, March 11, 2013

great item , works great,looks great.

room thermometer.

Submitted by crusader

Good Thermostat

Wednesday, December 28, 2011

Nice, simple thermostat. Easy installation. Much more sensitive than the older unit I replaced. Nice price. No reason not to give it 5 stars. It works.

Submitted by Grizzly

Quick and Easy To Install

Wednesday, October 05, 2011

It was quick and easy to install. Only about 5 minutes.

Submitted by Kyle L
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