HD 420 S2-1988
Control Switches (Low Voltage Switching - Devices for Control and Auxiliary Circuit, Including Contactor Relays)

Standard No.

HD 420 S2-1988

Release Date

1988

Published By

European Committee for Electrotechnical Standardization（CENELEC）

Latest

HD 420 S2-1988

HD 420 S2-1988 history

• 1988 HD 420 S2-1988 Control Switches (Low Voltage Switching - Devices for Control and Auxiliary Circuit, Including Contactor Relays)