Coded-Magnet Safety Door Handle closes only if magnetic arrays match

Tamper-resistant, coded-magnet safety door handle system finds use as a combo door handle and safety interlock switch on light to medium-weight hinged and sliding machine guards. Each IP67-rated unit consists of a low-profile door handle assembly equipped with two multiple reed switch arrays and coded-magnet actuators. Reed switches will only close in the presence of their matched magetic field array. The easy-to-install unit is available for right or left-hand guards and is compatible with 35, 40, and 45-mm aluminum profiles. Schmersal, Inc., Tarrytown,