DIN EN IEC 63522-28 VDE 0435-2027-28:2025-11
Electrical relays – Tests and measurements
Part 28: Thermoelectric electromotive force (e.m.f.)
(IEC 63522-28:2025); German version EN IEC 63522-28:2025
Class/Status:
Standard,
valid
Released: 2025-11
VDE Art. No.: 0400737