DIN EN IEC 63522-20 VDE 0435-2027-20:2025-11
Electrical relays – Tests and measurements
Part 20: Mechanical endurance
(IEC 63522-20:2025); German version EN IEC 63522-20:2025
Class/Status:
Standard,
valid
Released: 2025-11
VDE Art. No.: 0400730