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immediate downloadReleased: 1978-05-31
BS 5581:1978
Specification for low voltage switchgear and controlgear for industrial use. Terminal marking and distinctive number for particular control switches
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| Standard number: | BS 5581:1978 |
| Pages: | 10 |
| Released: | 1978-05-31 |
| ISBN: | 0 580 10125 8 |
| Status: | Standard |
DESCRIPTION
BS 5581:1978
This standard BS 5581:1978 Specification for low voltage switchgear and controlgear for industrial use. Terminal marking and distinctive number for particular control switches is classified in these ICS categories:
- 29.130.20 Low voltage switchgear and controlgear
This standard applies to control switches according to IEC Standard 337-1, with two definite positions (such as push-buttons, limit-switches and similar devices), irrespective of their construction, having terminal marking in accordance with the corresponding marking of contactor relays designated by the distinctive letter E (see EN 50011).
The use of this standard is recommended where terminal marking is a requirement of the relevant standard for control switches, or is usual practice.
Detailed rules for control switches based on the general rules of BS 5472:1977 [EN 50005].