Installation of the Control Panel
Remove the screws along the bottom
front edge, and above and below the
keyswitch. and remove the lid. Four
fixing holes are provided so that the
control panel can be attached to a
wall. Connect the mains input
terminals in the control panel to a
230 V AC mains supply. If using the
same supply that is connected to the
contactor, make sure that connection
is made to the permanently live, not
the switched supply.
The unit must be earthed.
Use the cable inlets at the top of the
panel for control and audio cables;
use the cable inlets at the bottom of the panel for mains wiring.
The G920D may be used in one of two different ways: either it may be used to
attenuate the audio signal to reduce the sound level, or it may be used to disconnect
the supply to the audio equipment.
If the G920D is to be used to switch the mains power to audio equipment then the
supply to this equipment should be routed through the contactor. A four pole
contactor is provided, which can be used to switch either:
• up to four single-phase circuits switched on live only
• two single-phase circuits switched on live and neutral
• three phase and neutral
A diagram on the cover of the contactor shows which terminals are connected
when the contactor switches on.
The maximum load must not exceed 32 Amps at 400 V AC on each circuit.
G920D User Guide
- page 3 -
Earth
Liv
e
Neutral
L
N
