Insulation monitoring relays

Insulation control relays are devices that are used to monitor the condition of insulation in electrical systems. Their main task is to detect insulation damage that can lead to dangerous situations such as fires or electric shock. An example of such devices are Trafox products such as IM-04DCCT, IM-04PV or IM-05DCCT.

The principle of operation of the insulation control relay consists in measuring network insulation resistance using a generated signal and FFT analysis. The insulation resistance is calculated based on the obtained values. If the resistance drops below the set limit value, the relay gives an alarm signal or a voltage disconnection signal.

The IM-04DCCT relay is designed to monitor insulation in electric vehicle charging stations. Allows measuring voltages to 1000 V DC (1 kV) or 690V AC. The insulation resistance measuring range is from 10 kΩ to 1 MΩ. The relay has the ability to set alarms at various levels of resistance and voltage as well as communication through the RS4851 interface. In addition, this relay is equipped with an automatic calibration function, which ensures accurate insulation measurements.

IM-04PV is another product of Trafox. It is a relay insulation control dedicated to photovoltaic systems. IM-04PV allows you to monitor insulation in solar systems with a voltage up to 1500VDC. This relay uses the FFT analysis to accurately detect any insulation damage. The device can work in networks in the IT system. IM-04PV has alarm outputs that inform the user about the state of insulation. This relay is also equipped with an automatic calibration function.

The IM-05DCCT relay is designed to monitor insulation in electric vehicles, charging stations and DC drives. It can work with input voltage up to 1 kV DC or 690 V AC. The insulation resistance measurement range is from 100 kΩ to 1 MΩ. The relay has the ability to set alarms at different levels of resistance and voltage as well as communication through the RS485 or Canbus interface. I support High Side PWM communication.

Trafox products are reliable, easy to use and perfectly available (short order delivery time). Installation of this type of security systems is required by a number of standards and regulations.

Trafox products are a great choice for people looking for reliable and technologically advanced insulation control relays. These devices are reliable, easy to use and very well accessible (short delivery time).