The 400 VAC adapter (transformer module WSF 05-400/12 WSF) has been designed to offer the customers a way to use our signal lights with at 400VAC net. The module is designed for a standard supply of 380VAC and is able to cope with peak voltages up to 690VAC. Due to the use of a secure isolation transformer input and output are galvanically separated. The application is very simple. It is inserted between the actual supply and the signal light. The attachment of the 400 VAC adapter is easily by snapping on a DIN rail, snap-in holder is inside the case already. The connection of the module is very simple, connect the input of the supply with the 400 VAC net (max. 690V) and the output with one of our WSF signal-lights (max. 18mA power consumption).