IRC Dimming Room Control Kit. Includes Low Voltage devices. 2 Zone Room Controller w/(2) 0-10V outputs and (2) 347V relays. M/T Occupancy Sensor (OSC10-M0W). 4 Button Switch (RLVSW-4LW). Photocell (ODC0P-00W). 347VAC Canadian model. 50/60Hz.