• BS 764:1954

BS 764:1954

Specification. Automatic change-over contactors for emergency lighting systems

BSI Group, 06/12/1974

Publisher: BS

File Format: PDF

$125.00$251.46


Published:12/06/1974

Note:This product is unavailable in Ukraine, Russia, Belarus

Contactors which automatically transfer circuits from the normal source of supply to an alternative source when the normal source fails; reconnection is automatic when normal conditions are restored. Performance and constructional details of double-pole contactors for low voltages; range of standard current ratings.

All current amendments available at time of purchase are included with the purchase of this document.

More BS standard pdf

BS PD CEN ISO/TS 22115:2021

BS PD CEN ISO/TS 22115:2021

Animal and vegetable fats and oils. Separation of lipid classes by capillary gas chromatography (fingerprint method)

$125.00 $251.46

BS 10845-4:2021

BS 10845-4:2021

Construction procurement - Part 4: Standard conditions for the calling for expressions of interest

$118.00 $236.22

BS PD ISO/TR 21916:2021

BS PD ISO/TR 21916:2021

Solid recovered fuels. Guidance for the specification of solid recovered fuels (SRF) for selected uses

$226.00 $452.12

BS PD ISO/IEC TR 22116:2021

BS PD ISO/IEC TR 22116:2021

Information technology. A study of the differential impact of demographic factors in biometric recognition system performance

$125.00 $251.46