The EVSE Directory · Field sheet · Site stack (generic) · DEP-XFMR-TAP
DEP-XFMR-TAPWrong tap leaves undervoltage
Site stack (generic) · Switchgear
Verified 2026-08-011 field confirmsSeverity: medium ~60 min
Safety
Site switchgear, contactors, and cooling loops have their own LOTO — do not skip trade boundaries.
Full procedure requires solo+
Symptom teaser: Wrong tap leaves undervoltage — transformer tap leaves EVSE bus low under load. site-generic field note: keep evidence scrubbed and prove the ranked cause befor…
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