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EMERSON 01C21 101S1 Analog Thermostat, Cool Only, Slide Switch, 30V AC - Analog Thermostats
EMERSONAnalog Thermostats

EMERSON 01C21 101S1 Analog Thermostat, Cool Only, Slide Switch, 30V AC

<p>The EMERSON 01C21 101S1 is a reliable analog thermostat designed for cool-only applications. It features a slide switch control and operates on 30V AC, with a temperature control range of 50° to 90°F and a 4°F…

SKU 3G-OTH-71009

Also listed as: 01C21101S1 · 01C21-101S1

Brand
EMERSON
Item
01C21 101S1 Analog Thermostat, Cool Only, Slide Switch, 30V AC
Part Number
01C21 101S1
Category
Analog Thermostats
Available to Order
Also known as:01C21 101S1EMERSON
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

EMERSON
Manufacturer Part Number
01C21 101S1
Type
R/Terminal Designations, No Fan Setting, On
Shape
Rectangle
Voltage
30V AC
Digit Size
Standard
Application
Cool Only
Control Type
Slide Switch
Fan Settings
No Fan Setting
System Settings
On
Mounting Direction
Vertical
Terminal Designations
Y
Temperature Differential
2°F Heating, 4°F Cooling
Temperature Control Range
50° to 90°F

Technical Documents

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

Product Description

<p>The EMERSON 01C21 101S1 is a reliable analog thermostat designed for cool-only applications. It features a slide switch control and operates on 30V AC, with a temperature control range of 50° to 90°F and a 4°F cooling differential. This vertical-mounting thermostat uses Y terminal designations and has no fan setting, making it a straightforward solution for basic cooling control.</p><p>Ideal for commercial and industrial environments where simple, dependable temperature regulation is needed. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What is the temperature control range and differential for this thermostat?

The temperature control range is 50° to 90°F, with a cooling differential of 4°F and a heating differential of 2°F (though it is cool-only).

Does this thermostat have a fan setting?

No, it has no fan setting. It is designed for cool-only applications with a slide switch for system on/off control.

Used in

Common applications for EMERSON
Commercial refrigeration — Emerson single-stage electronic control (SKU 44R204) for walk-in coolers and freezers
HVAC system retrofits — Emerson low-voltage digital thermostat (SKU 3MY10) for heat or cool control in office buildings
Industrial process temperature — Emerson line-voltage mechanical thermostat (SKU 2E399) for equipment heating in manufacturing
Residential heating — Emerson analog heat-only thermostat (SKU 3MU96) for baseboard or radiant systems
Heat pump installations — Emerson standard thermostat (SKU 42PD14) for 1H/1C heat pump systems in commercial spaces
Cooling-only applications — Emerson mechanical cool-only thermostat (SKU 3MU97) for server rooms or storage areas
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EMERSON Products

3G Electric supplies EMERSON 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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This analog thermostat is designed for heat-only applications, controlling single-stage electric heating systems such as baseboard heaters or radiant ceilings. It features an exposed dial for temperature adjustment from 55° to 85°F, operates on 120 to 240V AC, and has a SPST switch action (open on rise). The dustproof case protects internal components in typical residential or light commercial environments
EMERSON
This analog thermostat is designed for heat-only applications, controlling single-stage electric heating systems such as baseboard heaters or radiant ceilings. It features an exposed dial for temperature adjustment from 55° to 85°F, operates on 120 to 240V AC, and has a SPST switch action (open on rise). The dustproof case protects internal components in typical residential or light commercial environments

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