BS 5424-3:1988
$142.49
Specification for controlgear for voltages up to and including 1000 V a.c. and 1200 V d.c. – Additional requirements for contactors subject to certification
| Published By | Publication Date | Number of Pages |
| BSI | 1988 | 24 |
First paragraph
Replacement:
This standard applies to electro-magnetic air-break contactors in accordance with IEC Publication 158-1 for which additional requirements are necessary in order to specify in sufficient detail certain testing parameters and procedures.
Additional notes:
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— The need for additional requirements appears, for example, when contactors have to be tested and certified by appropriate testing authorities because of national or other laws or rules.
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— If control switches are incorporated in contactors they shall comply with I EC Publication 337-1: Control Switches (Low-voltage Switching Devices for Control and Auxiliary Circuits, Including Contactor Relays), Part 1: General Requirements.
