Cover E DIN EN IEC 60947-4-3 VDE 0660-109:2021-02
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E DIN EN IEC 60947-4-3 VDE 0660-109:2021-02

* German Language Version *

Low-voltage switchgear and controlgear

Part 4-3: Contactors and motor-starters – Semiconductor controllers and semiconductor contactors for non-motor loads

(IEC 121A/307/CDV:2019); German and Englisch version prEN IEC 60947-4-3:2019
Class/Status: Draft, valid
Released: 2021-02   Published: 2021-01-15
VDE Art. No.: 1600327
End of objection deadline: 2021-03-15

This document covers low-voltage semiconductor controllers and semiconductor contactors (solid-state contactors) intended for the use with non-motor loads. As semiconductor controllers, they have many capabilities beyond the simple switching on and off of non-motor loads. As semiconductor contactors, they perform the same functions as mechanical contactors, but utilize one or more semiconductor switching devices in their main poles.