NEN-EN-IEC 60947-5-9:2007 en;fr

Laagspanningsschakelaars - Deel 5-9: Stuurstroomkringen en schakelelementen - Debietschakelaars

181,14 219,18 Incl BTW

Over deze norm

Status Definitief
Aantal pagina's 69
Commissie Schakelmateriaal
Gepubliceerd op 01-12-2007
Taal Engels, Frans
This part of IEC 60947 applies to flow rate switches that sense the rate of flow of a gas, a liquid or a granular solid. These switches change their output state if a pre-set value for the speed of flow is exceeded. These flow rate switches are self-contained, have semiconductor switching element(s) and are intended to be connected to circuits, the rated voltage of which does not exceed 250 V 50 Hz/60 Hz a.c. or 300 V d.c. This standard does not specify the additional measures that are necessary for flow rate switches used in conjunction with explosive sensing materials and/or in an explosive location. This standard is not intended to cover devices with analogue outputs. The object of this standard is to state for flow rate switches: - definitions; - classifications; - characteristics; - product information; - normal service, mounting and transport conditions; - constructional and performance requirements; - tests to verify rated characteristics.


ICS-code 29.130.20
Nederlandse titel Laagspanningsschakelaars - Deel 5-9: Stuurstroomkringen en schakelelementen - Debietschakelaars
Engelse titel Low-voltage switchgear and controlgear - Part 5-9: Control circuit devices and switching elements - Flow rate switches



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