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COLUMBUS ELECTRIC KTO-121B Nonprogrammable Thermostat for - Nonprogrammable Thermostats for Portable Cooling Equipment
COLUMBUS ELECTRICNonprogrammable Thermostats for Portable Cooling Equipment

COLUMBUS ELECTRIC KTO-121B Nonprogrammable Thermostat for

The COLUMBUS ELECTRIC Portable Cooling Thermostat (MPN KTO-121B) is a nonprogrammable analog thermostat for portable cooling equipment. It features a bi-metal sensor, SPST switch action (close on rise), and a steel…

SKU 3G-OTH-72061

Also listed as: KTO121B · KTO 121B

Brand
COLUMBUS ELECTRIC
Item
KTO-121B Nonprogrammable Thermostat for
Category
Nonprogrammable Thermostats for Portable Cooling Equipment
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

COLUMBUS ELECTRIC
Manufacturer Part Number
KTO-121B
Sensor Type
Bi-Metal
Display Type
Analog
Switch Type/Action
SPST, Close on Rise
Programming Capability
Not Programmable
Temperature Differential
6° to 8°F
Enclosure Rating/Material
Not Rated, Steel
Temperature Control Range
-10° to 100°F

Technical Documents

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

Product Description

The COLUMBUS ELECTRIC Portable Cooling Thermostat (MPN KTO-121B) is a nonprogrammable analog thermostat for portable cooling equipment. It features a bi-metal sensor, SPST switch action (close on rise), and a steel enclosure. The temperature control range is -10° to 100°F with a differential of 6° to 8°F.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the COLUMBUS ELECTRIC Portable Cooling Thermostat used for?

This thermostat controls portable cooling equipment by sensing temperature with a bi-metal sensor and switching the cooling circuit on or off. It is commonly used in industrial or commercial environments where simple, reliable temperature regulation is needed without programmable features.

What are the specifications of the COLUMBUS ELECTRIC KTO-121B thermostat?

The KTO-121B is a nonprogrammable analog thermostat with SPST switch action (close on rise). It has a temperature control range of -10° to 100°F and a differential of 6° to 8°F. The sensor is bi-metal, the enclosure is steel (not rated), and it is manufactured by COLUMBUS ELECTRIC.

Where to buy the COLUMBUS ELECTRIC KTO-121B thermostat worldwide?

3G Electric supplies the COLUMBUS ELECTRIC KTO-121B thermostat to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the COLUMBUS ELECTRIC portable cooling thermostat?

Mount the steel enclosure securely near the cooling equipment. Connect the SPST switch wires according to the close-on-rise action: the circuit closes when temperature rises above the setpoint. Adjust the analog dial to the desired temperature within the -10° to 100°F range. Always follow local electrical codes.

Used in

Common applications for COLUMBUS ELECTRIC
Industrial burner control — Columbus Electric hazardous-location thermostats (HLT-1) for temperature regulation in explosive environments
HVAC system pressure monitoring — Columbus Electric adjustable air pressure switches (GRH3AD) for duct static pressure sensing
Gas wall heater temperature regulation — Columbus Electric gas heater thermostat (P322016) for 50° to 90°F control in residential heating
Attic ventilation management — Columbus Electric attic fan thermostat (1A22-7) for cool-only operation from 80° to 130°F
Portable cooling equipment — Columbus Electric nonprogrammable thermostat (KTO-121B) for SPST close-on-rise switching in temporary cooling units
Commercial building line-voltage control — Columbus Electric analog thermostat (9502DS2T-P) for 24 to 277V AC heating or cooling in plastic/steel enclosures

COLUMBUS ELECTRIC Products

3G Electric supplies COLUMBUS ELECTRIC nonprogrammable thermostats for portable cooling equipment. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Analog thermostat for heat or cool applications. Features an exposed dial control with SPDT switch action (open/close on rise). Temperature control range 50° to 90°F. Supports 1H/1C staging with no fan setting. Suitable for line-voltage control in commercial or industrial spaces
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Analog thermostat for heat or cool applications. Features an exposed dial control with SPDT switch action (open/close on rise). Temperature control range 50° to 90°F. Supports 1H/1C staging with no fan setting. Suitable for line-voltage control in commercial or industrial spaces
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Analog thermostat with white plastic housing and steel component, rated for 24 to 277V AC. Temperature control range is 50° to 90°F. Measures 4 1/2 in x 2 3/4 in x 2 3/8 in. Suitable for direct switching of electric heaters, fan coils, or unit heaters in commercial or industrial spaces
Single-stage temperature control for hazardous locations. Features an adjustable temperature range of 40° to 110°F, adjustable differential of 2° to 4°F, and DPDT switch action (open/close on rise). Operates on 24 to 277V AC. Aluminum enclosure with 5-1/4 in capillary and 4-3/4 in x 5/16 in bulb. Defrost termination adjustable from 40° to 110°F
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Single-stage temperature control for hazardous locations. Features an adjustable temperature range of 40° to 110°F, adjustable differential of 2° to 4°F, and DPDT switch action (open/close on rise). Operates on 24 to 277V AC. Aluminum enclosure with 5-1/4 in capillary and 4-3/4 in x 5/16 in bulb. Defrost termination adjustable from 40° to 110°F
Single-stage cool-only thermostat with exposed dial and SPST switch that closes on rise. Operates at 120 to 240V AC with a temperature control range of 80° to 130°F. Used to activate attic fans for venting hot air in residential or light-commercial ventilation systems
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Single-stage cool-only thermostat with exposed dial and SPST switch that closes on rise. Operates at 120 to 240V AC with a temperature control range of 80° to 130°F. Used to activate attic fans for venting hot air in residential or light-commercial ventilation systems
Single-stage temperature control for hazardous locations. Adjustable temperature range 40° to 110°F, adjustable differential 2° to 4°F. SPDT switch action (open and close on rise). 120/277V AC. Aluminum enclosure. 5 in capillary with 4-5/8 in x 5/16 in bulb
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Single-stage temperature control for hazardous locations. Adjustable temperature range 40° to 110°F, adjustable differential 2° to 4°F. SPDT switch action (open and close on rise). 120/277V AC. Aluminum enclosure. 5 in capillary with 4-5/8 in x 5/16 in bulb
Thermostat for gas wall and ceiling heaters. Control range 50° to 90°F. Operates at 750MV or 24V. Suitable for residential and commercial heating applications
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Thermostat for gas wall and ceiling heaters. Control range 50° to 90°F. Operates at 750MV or 24V. Suitable for residential and commercial heating applications

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