Electrical relays. Tests and measurements. Thermal endurance.
STANDARD published on 8.10.2025
Designation standards: BS EN IEC 63522-21:2025
Publication date standards: 8.10.2025
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 20622 7 Status: Definitive