25t65 Pressure-Type Refrigerator Thermostat 250V 6A for Medical Refrigeration Equipment
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| Customized: | Customized |
| Certification: | RoHS, CE |
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Basic Info.
- Model NO.
- FT-905
- Rated Voltage
- 250V~ 50/60Hz
- Main Contact Current
- 6 (6) a (Resistive Load)
- Auxiliary Contact Current
- 0.5 (0.1) a / 0.1A (Signal or Indicator Circuit)
- Electrical Life
- ≥ 10,000 Cycles
- Insulation Resistance
- ≥ 100 MΩ (at 500V DC)
- Withstand Voltage
- 2000V AC (1 Minute)
- Temperature Switching Difference
- 3~5°C (Fine-Tunable Via The Adjusting Shaft)
- Temperature Control Accuracy
- ±1°C
- Ambient Temperature Range
- 0°C ~ 60°C
- Transport Package
- Carton Packaging
- Specification
- 25T65
- Trademark
- Thermal International
- Origin
- China
- HS Code
- 9032100000
- Production Capacity
- 80, 000PCS/Month
Packaging & Delivery
- Package Size
- 45.00cm * 50.00cm * 50.00cm
- Package Gross Weight
- 18.000kg
Product Description
Product Description
25T65 Pressure-type Refrigerator Thermostat 250V 6A for Medical Refrigeration Equipment
This is a 25T65 type pressure-type refrigerator thermostat (also known as the 077B series), a core temperature control component for refrigerators, freezers, and other refrigeration equipment.
Working Principle:
It operates based on the principle of liquid thermal expansion and contraction and pressure-driven contact switching:
-- Temperature Sensing: A temperature-sensing bulb (probe) is installed near the refrigerator evaporator and is filled with a temperature-sensing liquid (such as isobutane).
-- Temperature Sensing: A temperature-sensing bulb (probe) is installed near the refrigerator evaporator and is filled with a temperature-sensing liquid (such as isobutane).
-- Pressure Conversion: When the internal temperature of the refrigerator rises, the liquid in the temperature-sensing bulb evaporates, increasing the pressure; when the temperature drops, the gas condenses into liquid, decreasing the pressure.
-- Switching Action: This pressure change is transmitted through a capillary tube to the bellows inside the thermostat, driving the mechanical structure to control the opening and closing of the main contacts, thereby starting and stopping the compressor and maintaining a constant internal temperature in the refrigerator.
-- Manual Adjustment: The adjustment shaft on the top can change the spring preload, thus setting different temperature control levels.
Specification
Product Name | (25T65) Pressure-type Refrigerator Thermostat | |
Electrical Parameters: | Rated Voltage | 250V~ 50/60Hz |
Main Contact Current | 6 (6) A (resistive load) | |
Auxiliary Contact Current | 0.5 (0.1) A / 0.1A (signal or indicator light circuit) | |
Electrical Life | ≥ 10,000 cycles | |
Insulation Resistance | ≥ 100 MΩ (at 500V DC) | |
Withstand Voltage | 2000V AC (1 minute) | |
Temperature Control Parameters | Temperature Control Range | -37°C ~ -16°C (for freezers) / -25°C ~ +10°C (for dual-zone refrigerators) |
Temperature Switching Difference | 3~5°C (fine-tunable via the adjusting shaft) | |
Temperature Control Accuracy | ±1°C | |
Ambient Temperature Range | 0°C ~ 60°C | |
Physical & Mechanical Parameters | Capillary Length | Commonly 1000mm, 1300mm, 1500mm. |
Sensing Bulb Material | Stainless steel (resistant to refrigerant corrosion) | |
Capillary Material | Tin-plated copper (good thermal conductivity) | |
Main Body Material | Galvanized steel plate + engineering plastic | |
Installation Method | Clip-on or screw-fixed | |
Adjustment Shaft Type | Standard flat shaft (compatible with knobs) | |
Dimensions | Approx. 60mm × 30mm × 25mm | |
Certifications & Standards | Safety Certification | Complies with EN 60730-2-9 EU safety standard |
Explosion-proof Certification | Complies with IEC 60079-0 (applicable to flammable refrigerants such as R600a) | |
Environmental Certification | RoHS compliant, free of lead, mercury, and other hazardous substances. | |
Product Features & Main Application Scenarios:
Features:
1) Purely Mechanical Structure: No power supply required, operates based on physical principles, high reliability, and resistant to electromagnetic interference.
2) Dual Temperature Zone Control: Supports independent temperature control for the freezer and refrigerator compartments.
3) Safety Protection: Built-in overload protection and explosion-proof design, meeting EU safety standards.
4) Flexible Installation: The capillary tube can be freely bent to adapt to different refrigerator internal layouts.
5) Precise Temperature Control: Temperature control accuracy up to ±1°C, ensuring food preservation.
Application :
1) Household Refrigerators/Freezers: Single-door, double-door, and triple-door refrigerators, as well as upright/horizontal freezers.
2) Commercial Refrigeration Equipment: Small display cases, beverage cabinets, ice makers, etc.
3) Specialized Refrigeration Equipment: Laboratory low-temperature storage boxes, medical refrigeration equipment, etc.
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FAQ
FAQ
Q1 Are you trader?
A1 We are factory.
Q2 What's your lead time for 5000pcs?
A2 We need around 20days after down payment received. .
Q3 You payment term?
A3 We accept LC, T/T 20% remittance +80% before delivery, DP.
Q4 Can we print our LOGO on heating element?
A4 Yes.
Q5 Do you offer guarantee?
A5 Yes. We offer 1 year guarantee.
A1 We are factory.
Q2 What's your lead time for 5000pcs?
A2 We need around 20days after down payment received. .
Q3 You payment term?
A3 We accept LC, T/T 20% remittance +80% before delivery, DP.
Q4 Can we print our LOGO on heating element?
A4 Yes.
Q5 Do you offer guarantee?
A5 Yes. We offer 1 year guarantee.
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