No Frost Refrigerator Thermostat with Fuse Assembly Defrost Thermostat C0507.4.9
Product Parameter
Product Name | No Frost Refrigerator Thermostat with Fuse Assembly Defrost Thermostat C0507.4.9 |
Use | Temperature control/Overheat protection |
Reset type | Automatic |
Base material | resist heat resin base |
Electrical Ratings | 15A / 125VAC, 7.5A / 250VAC |
Operating Temperature | -20°C~150°C |
Tolerance | +/-5 C for open action(Optional +/-3 C or less) |
Protection class | IP00 |
Contact material | Silver |
Dielectric Strength | AC 1500V for 1 minute or AC 1800V for 1 second |
Insulation Resistance | More than 100MW at DC 500V by Mega Ohm tester |
Resistance Between Terminals | Less than 100mW |
Diameter of bimetal disc | 12.8mm(1/2″) |
Approvals | UL/ TUV/ VDE/ CQC |
Terminal type | Customized |
Cover/Bracket | Customized |
Typical Applications
- Heat treatment
- Ovens and furnaces
- Plastics and extrusion
- Packaging
- Life science
- Food and beverage
How Defrost Bimetal Thermostats Work
A defrost bimetal thermostat works separately from the refrigerator or freezer. This device, which turns on several times a day, senses the temperature of cooling coils. When these evaporator coils become so cold that frost starts to build up, the defrost bimetal thermostat facilitates the melting away of any frost that has formed on the cooling coil. The defrost bimetal thermostat does this by activating a hot gas valve or an electrical heating element that raises the temperature near the evaporator, which then melts the frost that has formed.
The melting away of frost buildup protects your refrigerator and freezer's evaporators from overheating during the defrost cycle. The bimetal thermostat and defrost heater work in tandem. When the frost is all melted, the bimetal thermostat will sense the temperature increase and trigger the defrost heater to turn off.
Craft Advantage
Slimmest construction
Dual contacts structure
High reliability for contact resistance
Safety design according to IEC standard
Environmental friendly towards RoHS,REACH
Automatic resettable
Accurate and quick switching snap action
Available horizontal terminal direction
Our product has passed the CQC,UL,TUV certification and so on, has applied for patents accumulatively more than 32 projects and has obtained scientific research departments above the provincial and ministerial level more than 10 projects. Our company has also passed the ISO9001 and ISO14001 system certificated, and national intellectual property system certificated.
Our research and development and production capacity of the company’s mechanical and electronic temperature controllers have ranked in the forefront of the same industry in the country.