DS/EN 60947-4-3:2001
低压开关设备和控制设备 第 4-3 部分：接触器和电机启动器 用于非电机负载的交流半导体控制器和接触器

Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads

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标准号

DS/EN 60947-4-3:2001

发布

2001年

发布单位

丹麦标准化协会

替代标准

DS/EN 60947-4-3/A1:2007

当前最新

DS/EN 60947-4-3/A2:2011

 

 

适用范围

This part of IEC 60947 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical operations by changing the state of a.c. electric circuits between the ON state and the OFF state. Typical applications are given in table 2. As controllers, they may be used to reduce the amplitue of the r.m.s. a.c. voltage on the load terminals from that of the applied voltage - either continuously or for a specified period of time. The half-wave period of the a.c. wave form remains unchanged from that of the applied voltage.

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