The Multi IO Extension Switch 590 serves as a power-saving alternative to commercial standard coupling relays. The coupling relay is controlled as a mono-stable relay, but uses a bi-stable relay internally, thus reducing the holding current by up to 95%. The Multi IO Extension Switch 590 has an integrated fuse to protect high-quality equipment. Spare relays Standard relays for Multi IO Extension Switch 590 Art.-Nr. 5347EAN: 42 6026277 347 0 Contact material: AgSnO2 Input 24 V Output 230 V / 16 A, bi-stable Delivery unit: 10 pcs. Special relays for Multi IO Extension Switch 590 Art.-Nr. 5348EAN: 42 6026277 348 7 Contact material: Tungsten / AgSnO2 For high inrush currents, e.g. for LED lamps Input 24 V Output 230 V / 16 A, bi-stable Delivery unit: 10 pcs. Art.-Nr. 5349EAN: 42 6026277 349 4 Contact material: AgSnO2 For manual operation Input 24 V Output 230 V / 16 A, bi-stable Delivery unit: 10 pcs.