UNE EN IEC 60947-4-1:2021
Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters
Aparamenta de baja tensión. Parte 4-1: Contactores y arrancadores de motor. Contactores y arrancadores electromecánicos.
| Standard number: | UNE EN IEC 60947-4-1:2021 |
| Pages: | 194 |
| Released: | 2021-02-10 |
| Status: | Standard |
| Pages (Spanish): | 223 |
UNE EN IEC 60947-4-1:2021
This document is applicable to the following equipment: electromechanical contactors and starters including motor protective switching device (MPSD); actuators of contactor relays and contacts dedicated exclusively to the coil circuit of this contactor or this contactor relay; dedicated accessories (e.g. dedicated wiring, dedicated latch accessory); intended to be connected to distribution circuits, motors circuits and other load circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c. This document covers also the assessment procedure for electromechanical overload protection used in safety applications: See Annex L. This document does not apply to: starters for d.c. motors1; NOTE 1 The requirements for d.c. motor starters are under consideration for the next maintenance cycle. auxiliary contacts of contactors and contacts of contactor relays. These are covered by IEC 60947-5-1; starter used downstream to frequency drive1; NOTE 2 Additional requirements for starter used downstream to frequency drive are under consideration for the next maintenance cycle. short-circuit protective device integrated within starters other than MPSDs. This is covered by IEC 60947-2 and IEC 60947-3; the use of the product within explosive atmospheres. This is covered by IEC 60079 series; embedded software design rules1; cyber security aspects. These are covered by IEC 62443 series.
