Thermal protective relay contactor 4TM1/3 L, 220 V

Model: 4TM1/3 L

Voltage: 220 V

Connection: 1 terminal 6.3 mm + twist contact "female"

Dimensions: 29x31.5x22.5 mm

Description

The thermal protective relay contactor 4TM1/3 L is designed to protect refrigerator compressors from overheating and overloads. It prevents compressor damage by automatically disconnecting it when critical temperature or overload conditions are reached, and restores operation once conditions normalize.

Operating principle:

1. When power is turned on, the relay starts the compressor and ensures its operation under normal conditions.
2. In case of overheating or overload, the relay opens the electrical circuit, protecting the compressor.
3. After the overload is cleared or the unit cools down, the relay returns to its initial state.

Main characteristics

• Connection: 1 terminal 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 thermal relay may need to be replaced for the following reasons:

• Burnout or damage to contacts due to overload.
• Physical damage to the housing or contacts.
• Wear caused by prolonged use.

Regular diagnostics and timely replacement of the relay ensure stable compressor operation and extend the lifespan of the refrigerator.

How to choose the right part

To avoid mistakes when selecting a thermal relay, pay attention to the following points:

• Model and specifications: Ensure that the selected model matches the parameters of your device. Compare voltage and type of connection.
• Compatibility check: Check your device's documentation or contact the manufacturer for compatibility information.
• Component quality: Prefer reputable brands and suppliers to avoid counterfeits.

Causes of damage and prevention methods

Damage to the thermal relay can occur for the following reasons:

• Overheating due to improper compressor operation.
• Overload caused by blockages or faults in the cooling system.

To extend the relay's lifespan, we recommend:

• Regularly checking the cooling system for blockages and damage.
• Monitoring compressor operation and addressing issues immediately.

Replacement recommendations

The process of replacing the thermal relay 4TM1/3 L is quite simple but requires caution. Follow these steps:

1. Disconnect the power to the device to avoid electric shock.
2. Remove the cover or access to the relay if necessary.
3. Carefully disconnect the old relay, noting the order of wire connections.
4. Install the new relay, following the same connection scheme.
5. Close the access and turn the power back on, checking the operation of the new relay.

Replacement difficulty assessment

Replacing the thermal relay 4TM1/3 L is rated as medium difficulty. Basic skills in electronics and an understanding of refrigeration equipment are required. If you are not confident in your abilities, it is better to consult a professional.