Key Switch to suit SD and SZ series Amplifiers
The 3 position 003 Key switch allows manual control of the SD or SZ Series amplifiers
The control is easy to install and has the following features-
OFF, AUTO, EVAC.
OFF- pressing off will stop any keypad function. If left in OFF, com fault will activate after 10mins.
EVAC – EVAC will sound.
Hole size required 19-20mm