40 78 00 Panel Mounted Instruments
40 78 19 Switches and Push Buttons
40 78 13Indicators and Meters40 78 16Indicating Lights40 78 19Switches and Push Buttons40 78 23Potentiometers and Manual Controllers40 78 26Chart Recorders40 78 33Annunciators40 78 43Single-Loop Controllers40 78 53Relays40 78 56Isolators, Intrinsically-Safe Barriers, and Surge Suppressors40 78 59Power Supplies40 78 63Alarm Dialers