PTC overload protectors for refrigerator, freezer & water cooler compressors. Thermal protection against over-current and over-temperature. 1/8–1/2 HP, 115V/230V. OEM & ODM. Free samples.
PTC overload protector for single-phase refrigeration compressors. Thermal protection device that disconnects power when current or temperature exceeds safe limits, preventing compressor burnout. PTC thermistor or bimetal type. 1/8–1/2 HP, 115V/230V. Plug-on mounting. Compatible with R134a, R600a, R22.OEM support.
| Parameter | Details |
|---|---|
| Product Type | PTC Overload Protector (Thermal Protector) |
| Protection Type | Over-current and over-temperature |
| Sensing Element | PTC thermistor / Bimetal disc |
| Applicable Power | 1/8 HP – 1/2 HP |
| Voltage | 115V / 230V AC |
| Frequency | 50/60 Hz |
| Trip Current | 3.5A – 10A (model dependent) |
| Reset Type | Automatic reset |
| Mounting | Plug-on type for compressor terminals |
| Construction | Plastic housing, sealed against dust |
| Operating Temperature | -40°C to +70°C |
| Compatible Refrigerants | R134a, R600a, R22 |
| Application | Refrigerator, freezer, water cooler, vending machine |
Reliable Overload Protection – Disconnects power to the compressor when current or temperature exceeds safe limits, preventing motor winding burnout and extending compressor service life. Essential safety component for sealed refrigeration systems.
PTC / Bimetal Sensing – Available with PTC thermistor or bimetal disc sensing element. PTC type responds quickly to over-current conditions; bimetal type provides reliable thermal protection. Both offer automatic reset after cooling.
Wide Power & Voltage Coverage – Covers 1/8 HP to 1/2 HP and 115V/230V, suitable for refrigerators, freezers, water coolers, and vending machines. One series covers a broad range of small compressors.
Plug-On Design for Easy Installation – Direct plug-on mounting onto compressor terminals eliminates complex wiring and speeds up production line assembly or field replacement.
Compact & Space-Saving – Small footprint fits tight compressor terminal enclosures, suitable for compact refrigeration systems.
Durable Construction – High-quality plastic housing and silver alloy contacts withstand the high inrush currents of compressor starting and provide long electrical life.
Stable Bulk Supply – Standard models ship in 15–25 days, supporting rolling replenishment and reducing inventory capital occupation.
OEM & ODM Support – Custom logo, packaging, trip current, and terminal type available. Can produce according to customer specifications.
Batch Traceability – MTC with every shipment; SGS/BV third-party inspection supported.
Export Packaging – Seaworthy carton and pallet packaging, suitable for long-distance ocean shipping.
For technical datasheets, samples, or bulk pricing, contact us directly.
Send your specifications (HP, trip current, voltage, terminal type) for a free technical evaluation and quotation within 24 hours. OEM and ODM orders welcome.
