- Flush or surface mounted in standard single-gang outlet boxes - Heavy-duty long-life switches - Color-coded connecting leads - Brushed aluminum faceplate - Mounting screws included - Designed for use with the PI35A SI35A and Multi-Graphic Series 115B/2223/2233 systems - SCR holding circuits actuate the annunciator signal and LEDs in Bogen's SBA-Series room selector panels - Provide momentary press-to-call
