低压开关装置和控制装置. 第4-1部分: 接触器和电动机起动器. 机电接触器和电动机起动器

[中文适用范围]： IEC 60947的本部分适用于以下设备： ?C机电接触器和起动器，包括电机保护开关装置（MPSD）； ?接触器继电器的C执行器； ?C 触点专用于该接触器或该接触器继电器的线圈电路； ?C专用配件（如专用接线@专用门锁配件）；用于连接至额定电压不超过 1 000 V AC 或 1 500 V DC 的配电电路@电机电路和其他负载电路。本文件还涵盖了安全应用中使用的机电过载保护的评估程序，例如保护位于爆炸性环境中的电机免受外部大气的影响：请参阅附件 L。本文件不适用于： 直流电机 1 的 C 启动器；注 1：直流电机启动器的要求正在考虑用于下一个维护周期。 ?C 接触器辅助触点和接触器继电器触点。 IEC 60947-5-1 涵盖了这些内容； ?C 启动器用于变频驱动1 的下游；注 2：下一个维护周期正在考虑对变频驱动下游使用的起动器的附加要求。 ?C 短路保护装置集成在除 MPSD 之外的启动器中。 IEC 60947-2 和 IEC 60947-3 涵盖了这一点； ?C 在爆炸性环境中使用产品时需采取附加措施。这些在 IEC 60079 系列中给出； ?C嵌入式软件设计规则1； ？C 网络安全方面。 IEC 62443 系列涵盖了这些内容。本文件的目的是说明： a) 设备的特性； b) 适用于设备的条件，涉及： 1) 其操作和行为@ 2) 其介电特性@ 3) 其防护等级 4) 其结构，包括防触电@火灾危险和机械危险的安全措施； c) 旨在确认这些条件已得到满足的试验以及这些试验所采用的方法； d) 随设备或制造商文献提供的信息。 1 对于这个主题，制造商有责任采取额外的安全措施。 [外文原描述]： IEC 60947-4-1:2018 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 fourth edition cancels and replaces the third edition published in 2009 and its Amendment 1:2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - Scope structure and exclusions - Editorial correction of notes and hanging paragraphs - Reference to IEC 62683-1 - Motor protective switching device (MPSD) with its requirements - Safety aspects related to: - General aspects; - Limited energy circuits; - Electronic circuits; - Assessment procedure for electromechanical overload protection used in safety -applications (new Annex L) - Introduction of provisions covering the impact of higher locked rotor current to achieve high efficiency class - Mention of dedicated wiring accessories - Pickup power measurement - Alignment to IEC 60947-1:2007, IEC 60947-1:2007/AMD1:2010, and IEC 60947‑1:2007/AMD2:2014 - Direct current requirements for covering photovoltaic application (new Annex M) - Load monitoring indicators (new Annex O) - Short-circuit breaking tests of MPSD (new Annex P) - Co-ordination under short-circuit conditions between a MPSD and another short-circuit protective device associated in the same circuit (new Annex Q). The contents of the interpretation sheet of March 2020, the corrigendum 1 of April 2020 and the corrigendum 2 of April 2021 have been included in this copy.