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Thermal protective relay contactor 4TM1/4 X2, 220 V
Model: 4TM1/4 X2
Voltage: 220 V
Connection: 2 terminals 6.3 mm + twist contact "female"
Dimensions: 29x31.5x22.5 mm
Description
The thermal protective relay contactor 4TM1/4 X2 is designed to protect refrigerator compressors from overheating and overloads. This device prevents breakdowns by automatically disconnecting the compressor when critical conditions are reached and allows for its restart once conditions normalize.
Operating principle:
- The relay is activated when power is supplied to the compressor.
- In the event of overheating or overload of the compressor, the relay opens the circuit, protecting the device.
- After the overload is resolved or the compressor cools down, the relay returns to its original state, allowing the compressor to resume operation.
Main specifications
- Connection: 2 terminals 6.3 mm + twist contact "female"
- Voltage and frequency: 220 V, 50-60 Hz
- Dimensions (LxWxH): 29x31.5x22.5 mm
- Manufacturer: China
Reasons for replacement
The need to replace the thermal relay may arise in the following cases:
- Damage to contacts or housing due to overload.
- Physical defects or mechanical damage.
- Wear of the device due to prolonged use.
Regular inspection and timely replacement of the relay ensure stable operation of the compressor and extend the lifespan of the refrigerator.
How to choose the right part
When selecting a thermal protective relay, it is important to pay attention to the following aspects:
- Compatibility: Ensure that the relay matches your compressor in terms of power and voltage.
- Quality: Choose parts from reputable manufacturers to avoid reliability issues.
- Dimensions: Check the size of the new relay to ensure it fits in the designated space.
Preventing breakdowns
To prevent the thermal relay from failing, consider the following recommendations:
- Regularly check the compressor for overloads and ensure it is properly cooled.
- Avoid frequent on/off cycles that can lead to overheating.
- Keep the area around the compressor and its fans clean to improve heat exchange.
Replacement recommendations
Replacing the thermal relay is not a complicated task and can be done in a few steps:
- Disconnect the refrigerator from the power supply.
- Remove the protective cover, if present.
- Disconnect the old relay from the terminals, noting the connection order.
- Install the new relay, connecting it similarly to the old one.
- Close the cover and reconnect the refrigerator to the power supply.
- Check the operation of the compressor.
Replacement difficulty
The difficulty of replacing the thermal relay can be rated as low. Only basic skills in working with electrical devices and adherence to safety measures are required.