Profile: Functional Devices, Inc. supplies lighting controls, building automation systems and energy saving devices. Our emergency bypass/shunt relays are UL924 listed and suitable for shunting around wall switches or lighting controls in order to turn on emergency lighting in the event of loss of normal utility power. We offer RIB® line of pre-packaged and multi-purpose relays. Our relays come in 10, 20 and 30 Amp varieties and an extensive range of coil voltages. Common features include an LED indicator, transient protection, and an option closed-open-auto switch. Most models are available either enclosed or track/panel mountable. The X series contains current sensors with or without a 10 or 20 Amp relay. An internal 10 Amp relay can be used to activate an external contactor, and currents up to 150 Amps are sensed externally with a solid or split current sensing ring. Other units control and sense up to 20 Amp loads, without the use of an external current ring, greatly reducing installation time. Models are available with fixed, or adjustable current sensing trigger points, or with voltage out. The brands we offer include PC Energy™, RIB™ and Relay in a Box™.