This standard applies to the quality classification of high-power non-sealed electromagnetic relays. This standard only gives key technical indicators and is not a complete product standard. It must be used together with SJ2845.1~2845.4 and related detailed specifications.
SJ/T 9560.12-1993 history
1993SJ/T 9560.12-1993 Unsealed high power electromagnetic relay--Quality grading standard