301. BS EN IEC 61810-7-13. All-or-nothing electrical relays. Tests and Measurements. Part 7-13. Corrosive atmospheres. Polluted atmospheres (3rd May 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
302. BS EN IEC 61810-7-36. All-or-nothing electrical relays. Tests and Measurements. Part 7-36. Fire hazard (19th November 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
303. BS EN IEC 61810-7-4. Electrical relays. Tests and Measurements. Part 7-4. Dielectric strength test, impulse voltage test (28th February 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
304. BS EN IEC 61810-7-45 Electrical relays - Tests and Measurements. Part 7-45. Maximum frequency of operation (4th April 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
305. BS EN IEC 61810-7-45. All-or-nothing electrical relays. Tests and measurements. Part 7-45. Maximum cycling frequency (8th October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
306. BS EN IEC 61810-7-48. All-or-nothing electrical relays. Tests and Measurements. Part 7-48. Contact reliability test (29th October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
307. BS EN IEC 61810-7-48. Electrical relays. Tests and Measurements. Part 7-48. Contact failure rate test (11th April 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
308. BS EN IEC 61810-7-49. All-or-nothing electrical relays. Tests and Measurements. Part 7-49. Long term stability of sealing (29th April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
309. BS EN IEC 61810-7-49. Electrical relays. Tests and Measurements. Part 7-49. Long term stability of sealing (31st May 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
310. BS EN IEC 61810-7-52. All-or-nothing electrical relays. Tests and Measurements. Part 7-52. Coil overvoltage (29th October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗