IEC 60947-4-1-2018 低压开关设备和控制设备--第4-1部分：接触器和电动机起动器--机电式接触器和电动机起动器 Low-voltage switchgear and controlgear - Part 4-1: Contactors and motor-starters - Electromechanical contactors and motor-starters

This part of IEC 60947 is applicable to the following equipment: 
– electromechanical contactors and starters including motor protective switching device 
(MPSD); 
– actuators of contactor relays; 
– 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 AC or 1 500 V DC. 
This document covers also the assessment procedure for electromechanical overload 
protection used in safety applications such as protecting a motor located in explosive 
atmosphere from the outside atmosphere: See Annex L.dition 4.0 2018-10 INTERNATIONAL STANDARD NORME INTERNATIONALE colour inside Low-voltage switchgear and controlgear – Part 4-1: Contactors and motor-starters – Electromechanical contactors and motor-starters Appareillage à basse tension – Partie 4-1: Contacteurs et démarreurs de moteurs – Contacteurs et démarreurs électromécaniques IEC 60947-4-1:2018-10(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？ 标准截图