THE RESIDUAL VOLTAGE TECHNOLOGY

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The Residual Voltage Technology

Residual Voltage Device/RVD®-EI (For Isolated Power Only) & RVD®-EMR (For Mains & Isolated Power)

Information on RCBO/RVD-EMR

Many people think that the RCBO/RVD-EMR is not mentioned in the Standards AS/NZS 3001-2-2022. It is, but not by name. Here are some of the reasons why.

CLAUSE 2.7.5 EXCEPTION

THE NEUTRAL EARTH CONNECTION need not be made where the isolated output source is provided with an INSULATING MONITORING DEVICE. The device complying with clause 2.7.8 PROVIDES AUTOMATIC OF SUPPLY ON OCURENCE OF A SECOND FAULT TO EARTH.

AN RVD DEVICE IS AN INSULATION MONITORING DEVICE and complies with 2.7 of AS/NZS3001.2.22 SWITCHING: 3.8.2.2

2.6.4 PROTECTION AGAINST INCORRECT POLARITY.

As per AS/NZS 3001.2:2022 Page 24 2.6.4 to 2.6.4.2

The use of a Transposition Sensor is mentioned in AS/NZS 3001-2022 which came into force on 18Th November 2023. Transposition sensor is commonly referred to as a reverse polarity sensor.

The combined RCBO/RVD-EMR senses and rejects incorrect polarity.

RVDSAFE®-EMR rejects reverse polarity from mains connections and protects the use of Generators and Inverters plugged into all vehicles requiring 240V power where RCD protection does not work.

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