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sklademVydáno: 2019-07-01
BS EN 50047:2019
Low-voltage switchgear and controlgear. Control switches. Position switches 30 × 55. Dimensions and characteristics
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| Označení normy: | BS EN 50047:2019 |
| Počet stran: | 14 |
| Vydáno: | 2019-07-01 |
| ISBN: | 978 0 539 01053 4 |
| Status: | Standard |
DESCRIPTION
BS EN 50047:2019
This standard BS EN 50047:2019 Low-voltage switchgear and controlgear. Control switches. Position switches 30 × 55. Dimensions and characteristics is classified in these ICS categories:
- 29.130.20 Low voltage switchgear and controlgear
This document applies to certain position switches with automatic return actuator, the standardized dimensions of which and the characteristics necessary for their application are given below.
A larger size (42,5x80) is standardized in EN 50041.
This document includes four types of position switches with the following actuator types:
roller lever actuator (form A);
rounded plunger actuator (form B);
roller plunger actuator (form C);
roller lever arm (form E).
This document is covering devices fitted with either independent (snap) action contact elements, designated (1), or dependent (slow make and break), designated (2) in Clause 5.