Electrical Panel

Battery buttons

Normal operation. Battery connected to the DC ESS bus and DC BAT bus

In/On

Battery disconnected from the DC buses (isolated)

Out/Off

Over/Under voltage

FAULT

Battery disconnected from the DC buses (isolated)

OFF

Generator buttons

Normal operation. Generator connected to its AC bus

In/On

Generator disconnected from the AC buses

Out/Off

Failure indication is present, refer to AC / DC System Display and ECAM message

FAULT

Generator disconnected from the AC buses

OFF

IDG buttons ( guarded)

Normal operation. IDG connected

In/On

Generator disconnected from the AC buses

Out/Off

Failure indication is present, refer to AC / DC System Display and ECAM message

FAULT

IDG disconnected and cannot be re-connected in flight

OFF

External Power buttons

Allows external power to supply the AC busses.

In/On

External power not connected to aircraft electrical system

Out/Off

External power supply available. Can be illuminated if no aircraft electrical AC/DC exists

AVAIL

External power supply some or all the aircraft electrical buses.

Bus Tie button

Auto bus tie operates. Will automatically cause AC bus to be powered from the other side in case of generator loss

In/On

Automatic bus tie off.

Out/Off

Automatic bus tie off.

OFF

AC essential Feed

Alternate feed (from AC 2 side) is selected

In/On

Normal position, allows AC ESS bus to be feed from AC 1

Out/Off

Failure indication is present, refer to AC / DC System Display and ECAM message

FAULT

AC ESS bus to feed from AC 2

ALTN

Galley and Commercial buttons

Normal operation. Galley and cabin entertainment systems active

In/On

Disconnected from the aircraft electrical supply.

Out/Off

Galley Failure indication is present, refer to AC / DC System Display and ECAM message

FAULT

Disconnected from the aircraft electrical supply. This may occur in the case of automatic electrical load shedding

OFF