Specifies the quality, performance and test procedures for electro-mechanical relays for control and switching circuits whose rated coil voltages do not exceed 500 V a.c. or 440 V d.c. and whose contact ratings do not exceed 20 A a.c. or d.c., 500 V a.c. or 440 V d.c. Also gives general rules for preparing detail specifications, marking requirements and relevant terminology.
BS 9150:1983 history
2015BS EN 61811-1:2015 Electromechanical telecom elementary relays of assessed quality. Generic specification and blank detail specificatio
1999BS EN 61811-1:1999 Electromechanical non-specified time all-or-nothing relays of assessed quality - Generic specification
1996BS EN 116000-1:1996 Harmonized system of quality assessment for electronic components. Generic specification: electromechanical all-or-nothing relays. General
1983BS 9150:1983 Specification for electrical relays of assessed quality: generic data and methods of test