Call Switch with SCR Circuit

Flush or surface mounted in standard single-gang outlet boxesHeavy-duty long-life switchesColor-coded connecting leadsBrushed aluminum faceplateMounting screws includedDesigned for use with the PI35A, SI35A and Multi-Graphic Series 115B/2223/2233 systemsSCR holding circuits actuate the annunciator signal and LEDs in Bogen's SBA-Series room selector panelsProvide momentary press-to-call