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HONEYWELL HOME T4398A1021 Analog Thermostat, Heat Only, 50-80°F, 120-277V AC - Analog Thermostats
HONEYWELL HOMEAnalog Thermostats

HONEYWELL HOME T4398A1021 Analog Thermostat, Heat Only, 50-80°F, 120-277V AC

The HONEYWELL HOME Line Volt Mechanical Tstat: Heat Only (MPN T4398A1021) is an analog thermostat with a single-stage (1H) heat-only application. It features an exposed dial control, operates on 120 to 277V AC, and…

SKU 3G-OTH-70216

Brand
HONEYWELL HOME
Item
T4398A1021 Analog Thermostat, Heat Only, 50-80°F, 120-277V AC
Part Number
T4398A1021
Category
Analog Thermostats
Available to Order
Also known as:T4398A1021HONEYWELL HOME
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

HONEYWELL HOME
Manufacturer Part Number
T4398A1021
Type
On, 50° to 80°F, Exposed Dial
AC
120 to 277V
Stages
1H
Voltage
120 to 277V AC
Application
Heat Only
Control Type
Exposed Dial
Fan Settings
No Fan Setting
System Settings
On
Switch Type/Action
SPST, Open on Rise
Temperature Control Range
50° to 80°F

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HONEYWELL HOME Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HONEYWELL HOME Line Volt Mechanical Tstat: Heat Only (MPN T4398A1021) is an analog thermostat with a single-stage (1H) heat-only application. It features an exposed dial control, operates on 120 to 277V AC, and uses a SPST switch that opens on rise. The temperature control range is 50° to 80°F, with system settings set to On and no fan setting.

Frequently Asked Questions

What is the Honeywell Home T4398A1021 line volt mechanical thermostat used for?

The Honeywell Home T4398A1021 is a heat-only analog thermostat for single-stage heating systems. It controls temperatures from 50° to 80°F using an exposed dial, operates on 120 to 277V AC, and features a SPST switch that opens on rise. Common in industrial and commercial heating applications.

What are the specifications of the Honeywell Home T4398A1021 thermostat?

The Honeywell Home T4398A1021 is a line volt mechanical thermostat with heat-only application, 1H stage, SPST switch (open on rise), temperature range 50° to 80°F, voltage 120 to 277V AC, exposed dial control, and no fan setting. It is an analog thermostat for simple on/off heating control.

Where to buy the Honeywell Home T4398A1021 thermostat worldwide?

3G Electric supplies the Honeywell Home T4398A1021 thermostat to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery for international orders. Contact us for pricing and lead time on this heat-only line volt mechanical thermostat.

How to install the Honeywell Home T4398A1021 line volt thermostat?

Install the Honeywell Home T4398A1021 by disconnecting power at the breaker, then wiring the SPST switch (open on rise) per the heating equipment schematic. Mount the exposed dial thermostat on a wall away from drafts. Set the temperature between 50° and 80°F. Always follow local electrical codes.

Used in

Common applications for HONEYWELL HOME
Commercial rooftop units — Honeywell Home VR8345K4809 dual-stage gas valve for direct spark ignition
Industrial boilers — Honeywell Home L6006A1145 immersion controller for high-limit and circulator control
Hydronic heating systems — Honeywell Home L4081B1047 circulator/high-limit controller with millivolt switching
Radiant floor heating — Honeywell Home L7224U1002 dual-function controller for high and low limit protection
Gas-fired furnaces — Honeywell Home VR8345M4302 single-stage gas valve for intermittent pilot ignition
Steam boilers — Honeywell Home L6081A1036 high/low limit controller with fixed differential
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HONEYWELL HOME Products

3G Electric supplies HONEYWELL HOME analog thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Analog thermostat for heat-only control of single-stage heating systems. Features a dial control with a one-piece vented cover and SPST switch action. Operates at 120, 208, 240, or 277 volts AC. Temperature range 40 to 80 degrees Fahrenheit
HONEYWELL HOME
Analog thermostat for heat-only control of single-stage heating systems. Features a dial control with a one-piece vented cover and SPST switch action. Operates at 120, 208, 240, or 277 volts AC. Temperature range 40 to 80 degrees Fahrenheit

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