Arcbound Field · Field sheet · Cross-brand / Protocol · NACS-H03
NACS-H03NACS thermal derate to zero
Cross-brand / Protocol · Cables & connectors
Verified 2025-12-052 field confirmsSeverity: medium ~60 min
Safety
Qualified EVSE personnel only. Follow site LOTO and OEM HV / arc-flash boundaries. Depressurize coolant loops before opening quick-connects; capture spills. Not a substitute for OEM service manuals or AHJ requirements.
Full procedure requires solo+
Symptom teaser: NACS thermal derate to zero on protocol: CSMS StatusNotification + connector LEDs shows NACS-H03. Techs see session abort or stall Unavailable until the ranked …
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