PTC starting relays for refrigerator, freezer & water cooler compressors. Resistance 12/22/33 ohms, max 450V, movement 0.14–0.56s, resume <90s. Solid-state, no moving contacts. OEM & ODM support. Free samples.
PTC starting relay for single-phase refrigeration compressors. PTC thermistor element provides short start pulse (0.14–0.56s) then increases resistance to disconnect start winding. Automatic reset <90s. Resistance 12/22/33 ohms, max voltage 450V. For refrigerators, freezers, water coolers. Compact plug-on design. OEM support.
| Parameter | Details |
|---|---|
| Product Type | PTC Starting Relay |
| Resistance | 12Ω, 22Ω, 33Ω (customizable) |
| Max Voltage | 450V |
| Movement Time | 0.14 – 0.56 sec |
| Resume Time | < 90 sec |
| Rated Voltage | 220V / 230V AC (customizable) |
| Frequency | 50/60 Hz |
| Mounting | Plug-on type for compressor terminals |
| Construction | Solid state, no moving contacts |
| Operating Temperature | -40°C to +70°C |
| Compatible Refrigerants | R134a, R600a, R22 |
| Application | Refrigerator, freezer, water cooler, vending machine |
Solid State Reliability – No moving contacts, no mechanical wear, no arcing. Eliminates contact sticking and welding common in mechanical relays, ensuring consistent compressor starting over a long service life.
PTC Self-Regulating – The PTC thermistor automatically increases resistance after the start pulse, reducing current to the start winding without external control. This simplifies system design and improves reliability.
Fast Start & Quick Resume – Start pulse of 0.14–0.56 seconds ensures rapid compressor starting. Resume time of less than 90 seconds allows the relay to reset quickly for the next start cycle, suitable for frequent-cycling refrigeration equipment.
Multiple Resistance Options – Available in 12Ω, 22Ω, and 33Ω, covering a range of compressor sizes and starting torque requirements. Custom resistance values available upon request.
High Voltage Withstand – Maximum voltage 450V, suitable for 220V/230V AC single-phase compressors and capable of withstanding voltage spikes in the power supply.
Compact Plug-On Design – Direct plug-on mounting onto compressor terminals eliminates complex wiring and speeds up production line assembly or field replacement.
Stable Bulk Supply – Standard models ship in 15–25 days, supporting rolling replenishment and reducing inventory capital occupation.
OEM & ODM Support – Custom logo, packaging, resistance value, and voltage 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 (resistance, voltage, application) for a free technical evaluation and quotation within 24 hours. OEM and ODM orders welcome.
