Busch-Jaeger 2021/6 US-201 push button insert, 1-pole, changeover contact with 2 independent signaling contacts

With two independent signaling contacts. Suitable for impuls central plate with actuation button. Only in conjunction with commercially available flush-mounted device boxes in accordance with DIN 49073, install or Busch-Jaeger item no. 3040 flush-mounted box for masonry, 3050 flush-mounted box for hollow walls or 3060 flush-mounted box for concrete) Lamp for replacement requirements 8360, 8362, 8363 and LED inserts.