1. BS EN IEC 61812-1. Time relays and coupling relays for industrial and residential use. Part 1. Requirements and tests (11th June 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (63 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for control switches (switching devices, including contactor relays, for control and auxiliary circuits, for voltages up to and including 1000 V a.c. and 1200 V d.c.). Contactor relays. Pilot switches Part 2 Sections 2.3 and 2.4, (31st October 1977) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. BS EN 61812-1. Time relays for industrial and residential use. Part 1. Requirements and tests (6th February 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (63 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
4. BS EN IEC 61812-1. Time relays for industrial and residential use. Part 1. Requirements and tests (7th July 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (63 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. BS EN IEC 61810-7-8. Electrical relays. Tests and Measurements. Part 7-8. Timing (19th April 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
6. Harmonized system of quality assessment for electronic components. Generic specification: electromechanical all-or-nothing relays. Generic data and methods of test for time delay relays Part 2, (28th November 1986) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. BS EN IEC 61812-1. Time relays for industrial and residential use. Part 1. Requirements and tests (20th November 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (63 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. BS EN IEC 61810-7-8. All-or-nothing electrical relays. Tests and Measurements. Part 7-8. Timing (21st April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗