Thermistor-based machine protection EMT6-DB 066167

Machine thermistor protection – reliable motor protection

This is an advanced machine thermistor protection device designed to protect electric motors from overload. The device effectively monitors the motor temperature, reacting to dangerous increases and preventing serious failures. Application in industry, workshops and anywhere requiring high reliability and safety of machine operation.

Functionality and application

The EMT6-DB protection offers comprehensive protection thanks to built-in diodes indicating the network status and any errors. The possibility of powering with both alternating current (AC) and direct current (DC) in a wide voltage range (24…240V) makes it extremely versatile and easy to integrate with various installations. Thanks to the possibility of manual or remote reset, the device is easy and convenient to operate. The test button allows for regular checking of the system's correct operation.

Technical characteristics and benefits

The device is characterized by a precise measurement of thermistor resistance in the range of 750…12000 Ohm, which ensures a quick and effective reaction to temperature changes. Its compact dimensions (23 mm wide, 83 mm high and 103 mm deep) allow for easy mounting even in limited spaces. Screw connections provide stable and secure electrical connections.

• Universal power supply: The possibility of AC/DC (24…240V) power supply eliminates the need for additional voltage converters.
• Status indication: The LED indicates the network status and any errors, making troubleshooting easier.
• Resetability: Manual or remote reset allows for quick restoration of machine operation after removing the cause of the failure.
• Test button: Regular testing of functionality ensures system protection is working.
• Compact dimensions: Facilitate mounting in tight spaces.
• Rated switching current 6A: Allows cooperation with various types of motors.
• Single measurement circuit: Allows monitoring of the temperature of one thermistor.

The protection has one normally open and one normally closed contact, which allows integration with control and alarm systems. The lack of error memory function means that after a reset, the device does not store information about previous failures – which may be an advantage in some applications requiring immediate restart after the problem is removed.