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Refrigeration Thermostat

The refrigeration thermostat is a compact control device used to regulate the temperature of refrigerators, freezers, display cabinets and cold storage rooms. It continuously monitors the surrounding temperature through a temperature sensor(bulb). When the temperature reaches the preset limit, it immediately cuts off the circuit, causing the heating source to stop working. Then, it turns on the switch of the compressor or defrost heater, thereby keeping the equipment's temperature within the range of -35°C to +35°C. This product offers reliable frost protection, high precision and a long service life.

About Us

Wenzhou Leheng Technology Co., Ltd.
Wenzhou Leheng Technology Co., Ltd.
Established Manufacturer: Founded in 2012, we specialize in the development and manufacturing of thermostats, temperature limiters, rocker switches, and PCB thermostats.
Automated Manufacturing: Standardized assembly lines, automated production equipment, and optical inspection systems support efficient and consistent manufacturing.
Stable Production Capacity: With monthly output exceeding 1 million units and annual production exceeding 12 million units, we support stable supply for B2B orders.
Certified Quality Management: Our products and management systems are supported by UL, TUV, CE, CQC, KC, RoHS, REACH, SGS, ISO 9001, and ISO 14001 certifications.
Technical & R&D Capability: We hold multiple patents, have participated in national industry standard development, and were recognized as a National High-Tech Enterprise in 2020.
Global Market Supply: Our products are exported to more than 80 countries and regions, supported by professional sales and order service.

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  • CERTIFICATE OF COMPLIANCE Number 20190531-E495376
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Refrigeration Thermostat Overview

A Refrigeration Thermostat controls refrigeration equipment by detecting temperature changes and switching the connected circuit at the set temperature. Mechanical Refrigeration Thermostat models commonly use a sensing bulb and capillary tube, while electronic models use a temperature sensor or control circuit.

Depending on the model, a Refrigeration Thermostat can control a compressor, evaporator fan, defrost heater, or other refrigeration components. Available configurations include fixed, adjustable, capillary, commercial, mechanical, and electronic thermostats.


Refrigeration Thermostat Technical Specifications & Selection Factors

Specification Available Configuration
Temperature Range -35°C to +35°C
Rated Voltage AC 250V
Rated Current 16A
Sensing Method Capillary & bulb, bimetal, electronic sensor/probe
Sensing Bulb Diameter 6mm
Capillary Tube Length 1500mm; other lengths available
Temperature Differential 3–5°C
Reset Type Automatic
Maximum Resistance Temperature T125
Temperature Adjustment Fixed or adjustable
Control Interface Dial, rotary knob, digital display
Mounting Panel, surface, remote sensing bulb
Switching Configuration Varies by model and circuit

Refrigeration Thermostat Applications

Refrigeration Thermostat products are used in refrigeration systems where temperature-based switching is required, including:

Fresh-keeping tanks
Display cabinets
Merchandising refrigerators
Ice machines
Beverage chillers
Coolers
Refrigerated cabinets
Cold storage rooms
Cold-chain logistics equipment
Food-preparation counters
Food-service refrigeration
Medical and laboratory refrigeration

Different Refrigeration Thermostat configurations can be selected according to temperature range, sensing method, electrical load, mounting position, and control requirements.

Refrigeration Thermostat Customization & OEM/ODM

Refrigeration Thermostat configurations can be adjusted for different refrigeration equipment and OEM projects, including:

Temperature range and differential
Capillary tube length
Sensing bulb configuration
Rated voltage and current
Dial, rotary knob, or digital interface
Housing dimensions
Mounting structure
Product logo and packaging

For OEM and ODM projects, the Refrigeration Thermostat configuration can be developed according to the equipment's temperature control and installation requirements.


Refrigeration Thermostat Manufacturing & Quality Control

Refrigeration Thermostat manufacturing includes mold design and development, component production, mechanical and electrical assembly, optical inspection, temperature-response testing, switching-cycle testing, electrical life testing, and incoming and finished-product inspection.

Quality control focuses on temperature response, switching performance, calibration, temperature differential, and batch consistency. Available certifications and compliance documents include UL, TUV, CE, CQC, KC, RoHS, REACH, SGS, ISO 9001, and ISO 14001.

The factory was established in 2012, with reported monthly output exceeding 1 million units and annual output exceeding 12 million units.


Refrigeration Thermostat B2B Supply & Purchasing

The Refrigeration Thermostat range supports distributors, refrigeration equipment manufacturers, OEM buyers, wholesalers, and other commercial purchasers.

Supply options include standard models, OEM production, ODM development, sample evaluation, and bulk orders. MOQ and lead time vary according to the model and customization requirements.

For purchasing, buyers can confirm the required temperature range, electrical rating, sensing method, capillary length, mounting method, control interface, and application before placing a bulk order.

Refrigeration Thermostat FAQ

How should the temperature range be selected for a Refrigeration Thermostat?

The temperature range should cover the required operating temperature of the refrigeration system. The temperature differential also affects how frequently the Refrigeration Thermostat switches the connected circuit.

How should I select a Capillary Refrigeration Thermostat?

Check the capillary length, sensing bulb position, and sensing point against the equipment layout. The electrical rating should also match the compressor or other connected load.

What should I check when selecting an Adjustable Refrigeration Thermostat?

Check the adjustment method, mounting structure, sensing configuration, and switching requirements against the equipment design.

What should I consider when selecting a Commercial Refrigeration Thermostat?

Confirm the required temperature range, electrical rating, sensing configuration, mounting method, and control interface for the commercial refrigeration equipment.

Can the capillary length of a Refrigeration Thermostat be customized?

Yes. Different capillary lengths and sensing bulb configurations can be supplied according to the equipment design and sensing position.

Can samples be provided before bulk production?

Sample evaluation is available before bulk orders, with the specific sample arrangement depending on the model and project requirements.

What is the MOQ for Refrigeration Thermostat orders?

MOQ varies by model, order quantity, and customization requirements.

Can a Commercial Refrigeration Thermostat be supplied for wholesale orders?

Yes. Commercial quantities can be supplied for distributors, wholesalers, refrigeration equipment manufacturers, and OEM buyers.

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