1. BS EN 60947-4-1. Low-voltage switchgear and controlgear. Part 4-1. Contactors and motor-starters. Electromechanical contactors and motor-starters (4th March 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (186 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗