Megger debuts EVCC300 to check EV chargers


Megger now offers an instrument that can check the safety and operation of level 1 and level 2 EV chargers. The EVCC300 is an all-in-one tool that helps to make checking electric vehicle charge points simple.

For use during either installation, repair, or during scheduled maintenance and inspection, the EVCC300 performs a variety of important safety assessments, including checking for hazardous voltages; confirming there is a ground connection; ensuring that any exposed metal work is properly grounded; certifying that the charger ground does not rise to a hazardous level when the charger output is on; and timing the device’s tripping speed.

The unit can also check to see if nuisance tripping or GFCI is likely to occur.

The EVCC300 also performs four key EV charger operation checks, including:

  • a proximity detection operation check to detect whether the latching detection is working properly when testing a type 1 connection;
  • control pilot operation check to read the response state of the charger;
  • control pilot signal check to measure control pilot signal voltage, frequency, and duty cycle, as well as highlight instability in the signal;
  • and an EV charger output check to measure output frequency when charging is in process or check for correct L – N supply polarity.

The EVCC300 connects to SAE J1772 Type 1 and Type 2 charger connectors only. It has a voltage range of 5 V to 300 V, frequency range of 45 Hz to 65 Hz, and an operating temperature range from 0 °C to 40 °C.

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