EVlink ground fault

How it presents

Symptom

Schneider EVlink trips its ground-fault/residual-current protection during rain, wash-down, or shortly after cable handling, and the fault often recurs on reset in commercial installs where the EVSE shares a panel and bonding path with other loads. A trip that follows the cable when swapped, or that clears dry and holds, narrows the cause quickly before an electrician is called for panel-level bonding work.

Root causes (by observed frequency)

1. #1 Moisture at the cable, connector, or enclosure seam bridging the ground-fault sensing path

   Most common after storms or pressure washing; dry and inspect before any parts order

2. #2 Site PE/bonding problem shared across the panel, surfacing as a nuisance trip under load

   Ask whether other circuits on the same panel have also tripped recently

3. #3 Damaged cable insulation exposing a conductor intermittently

   Inspect the full cable length, including where it crosses curbs or wheel stops

4. #4 Failed onboard ground-fault device after repeated wet trips have degraded it

   Only replace after a dry, known-good-cable retest still trips

Diagnostic procedure

1. 1. Dry the cable, connector, and enclosure, then perform a single reset

   Expected: Trip does not recur immediately

   Tools: rags, inspection light

2. 2. Check PE continuity at the EVSE and panel bond, and ask whether other branch circuits on the same panel have tripped recently

   Expected: Low-resistance PE path; no unrelated panel-wide trip history

   Tools: DMM, electrician, panel notes

3. 3. Swap in a known-good cable for a test session

   Expected: Fault clears with the known-good cable

   Tools: spare cable

4. 4. If dry trips persist with a known-good cable, coordinate with an electrician on panel-level bonding before ordering parts

   Tools: electrician

5. 5. Replace the OEM ground-fault module only after moisture, cable, and panel bonding are all ruled out

   Tools: OEM GF module

The fix

Moisture and panel bonding cause most trips; never bypass ground-fault protection, and treat the GF module swap as a last resort.

• EV cable assembly

  Replace if any insulation damage is found

• Ground-fault module

  Schneider OEM part only

1. Dry and seal the cable, connector, and enclosure path, replacing the cable if any insulation damage is found.
2. Verify PE continuity and correct any site bonding issue with a qualified electrician before repeated resets.
3. Perform a single protective reset and validate with a real session of at least five minutes.
4. Replace the ground-fault module only if the fault still trips dry with a known-good cable and proven-good bonding, then revalidate and document the fix.