Semiconductor soft starter 3RW3 8.1 Regulations/specifications/approvals The semiconductor soft starters 3RW3 are approved in conformity with UL and CSA. Tabelle 8-1: Standards and approvals, 3RW3 "In-service switching" The soft starters 3RW3 may be used for "in-service switching" in accordance with DIN VDE 0100 Part 460: A switch for in-service switching must be provided for every circuit that is to be switched independently of the other parts. Switches for in-service switching need not necessarily switch all active conductors of a circuit. "Isolating" The soft starters do not meet the requirements for "isolating" as detailed in DIN VDE 0100 Part 460 and EN 60 947-1".
Each circuit must be capable of being isolated from the active conductors of the power supply. Circuit groups may be isolated by one common device if permitted by the conditions of operation. In the open position, devices with an isolating func- tion must have a corresponding isolating gap and an indicating facility that indicates the positions of the moving contacts. Rev.
08/99 8-3 UL / CSA UL 508 Types of protection, of housings DIN EN Standard profile rail DIN EN 50 022 Electronic soft starters IEC 60947 - 4-2 Shock hazard protection IEC 60947 - 1 and DIN 40050 EMV IEC 60801 - 4 -2 (draft) General definitions DIN EN 602 69 - 1A1 Controllers and switch- ing elements DIN EN 602 69 - 1A1 Gost Approved to Gost CTic EMC conformity mark for Australia (cf. CE mark)