Banner Engineering OTBVN6QD Optical Touch Button

The Banner Engineering OTBVN6QD Optical Touch Button is a momentary optical touch switch in the OPTO‑TOUCH OTB Series that activates by finger touch and provides a complementary NPN (sinking) output when powered from 10 to 30 V DC. The QD variant uses a four‑pin quick‑disconnect connection and comes with a yellow cover variant (W/Y); the upper housing is thermoplastic polysulfone and the base is VALOX, with an IP66 rating for dust and water resistance. It mounts with a base‑mount saddle and an M30 x 1.5 thread, and its compact body measures 59.9 mm long by 43.2 mm wide by 48.0 mm high, housing a single optical sensing beam. The device supports normally open and normally closed configurations, with a typical response time around 100 ms, and uses four conductors for its output and input wiring. This model is currently obsolete; Banner recommends contacting them for information about a suitable replacement.