# Aircraft Electrics Variables<no value>
The tables below indicate the properties for the [Simulation Variables](../../simulation-variables/) that can be used to get and set variables related to the electrical system of the aircraft. For information on the units listed for each variable, please see here: [Simulation Variable Units](../../simulation-variable-units/)

You can find a complete index of all available SimVars here: [SimVar Index](../../simulation-variables/#simvar-index)

The SimVars below are all related to the aircraft electrical system (including lights). Large parts of this system are setup using the [`[ELECTRICAL]`](../../../../content-configuration/cfg-files/systems.cfg/#electrical) section of the [`system.cfg`](../../../../content-configuration/cfg-files/systems.cfg/) file, and many may also require the use of the different  to retrieve and edit their values.


### General / Buses

This section contains the SimVars related to the electrical buses and the electrical system in general. Note that many of them will require the *name* of the component that they target. This name is given using the following format:

``` xml
[SimVar]:'[COMPONENT_NAME]'_n
```

For example:

``` xml
(A:ELECTRICAL BUS VOLTAGE:'Bus_1'_n, Volts)
```

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable | Index | Description | Units | Settable |
|---|---|---|---|:---:|
| {{< anchor id="BUS-LOOKUP-INDEX" />}}`BUS LOOKUP INDEX` | N/A | This is a settable simvar meaning that it can both be read and set. Some of the simvars in this list are using this to lookup a value using two arguments (one argument in addition to the component index). For example to check the state of the connection between a "circuit.45" and the "bus.2" it would be written as follows:<span></span>`2 (>A:BUS LOOKUP INDEX, Number) (A:CIRCUIT CONNECTION ON:45, Bool)`<span></span>It should be notes that when `BUS LOOKUP INDEX` is not set (ie: it is 0) then TRUE will be returned if ***any*** of your bus connections are on. | - |  {{< check/good >}}  |
| {{< anchor id="BUS-BREAKER-PULLED" />}}`BUS BREAKER PULLED` | [0] Bus Index<span></span>[1] Bus Name (or index) | This will be `true` if the bus breaker is pulled. Requires a [`BUS LOOKUP INDEX`](#busn-LOOKUP-INDEX) and a [Bus](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#busn) name (or index). | Bool |  {{< check/good >}}  |
| {{< anchor id="BUS-CONNECTION-ON" />}}`BUS CONNECTION ON` | [0] Bus Index<span></span>[1] Bus Name (or index) | This will be `true` if the bus is connected. Requires a [`BUS LOOKUP INDEX`](#busn-LOOKUP-INDEX) and a [Bus](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#busn) name (or index). | Bool |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-BUS-AMPS" />}}`ELECTRICAL BUS AMPS` | Bus Name (or index) | Retrieve the amperage of the named (or indexed) [Bus](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#busn). | Amperes |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-BUS-VOLTAGE" />}}`ELECTRICAL BUS VOLTAGE` | Bus Name (or index) | Retrieve the voltage of the named (or indexed) [Bus](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#busn). | Volts |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-TOTAL-LOAD-AMPS" />}}`ELECTRICAL TOTAL LOAD AMPS` | N/A | Total load amps | Amperes |  {{< check/good >}}  |
| {{< anchor id="NEW-ELECTRICAL-SYSTEM" />}}`NEW ELECTRICAL SYSTEM` | N/A | Is the aircraft using the new Electrical System or the legacy FSX one. | Bool |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-AVIONICS-BUS-AMPS" />}}<span class="obsolete">`ELECTRICAL AVIONICS BUS AMPS`</span> | N/A | Avionics bus current<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS AMPS`](#ELECTRICAL-BUS-AMPS). | Amperes |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-AVIONICS-BUS-VOLTAGE" />}}<span class="obsolete">`ELECTRICAL AVIONICS BUS VOLTAGE`</span> | N/A | Avionics bus voltage<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS VOLTAGE`](#ELECTRICAL-BUS-VOLTAGE). | Volts |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-BATTERY-BUS-AMPS" />}}<span class="obsolete">`ELECTRICAL BATTERY BUS AMPS`</span> | N/A | Battery bus current<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS AMPS`](#ELECTRICAL-BUS-AMPS). | Amperes |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-BATTERY-BUS-VOLTAGE" />}}<span class="obsolete">`ELECTRICAL BATTERY BUS VOLTAGE`</span> | N/A | Battery bus voltage<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS VOLTAGE`](#ELECTRICAL-BUS-VOLTAGE). | Volts |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-GENALT-LOAD" />}}<span class="obsolete">`ELECTRICAL GENALT LOAD`</span> | N/A | This returns the percentage of the load output that is being consumed. This requires an alternator index when referencing.<span></span>**Obsolete**, do not use! | Percent |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-GENALT-BUS-AMPS" />}}<span class="obsolete">`ELECTRICAL GENALT BUS AMPS`</span> | N/A | The load handled by the alternator. This requires an alternator index when referencing.<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS AMPS`](#ELECTRICAL-BUS-AMPS). | Amperes |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-GENALT-BUS-VOLTAGE" />}}<span class="obsolete">`ELECTRICAL GENALT BUS VOLTAGE`</span> | N/A | General alternator voltage. This requires an alternator index when referencing.<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS VOLTAGE`](#ELECTRICAL-BUS-VOLTAGE). | Volts |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-MAIN-BUS-AMPS" />}}<span class="obsolete">`ELECTRICAL MAIN BUS AMPS`</span> | N/A | Main main named (or indexed) [Bus](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#busn) current.<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS AMPS`](#ELECTRICAL-BUS-AMPS). | Amperes |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-MAIN-BUS-VOLTAGE" />}}<span class="obsolete">`ELECTRICAL MAIN BUS VOLTAGE`</span> | N/A | The main named (or indexed) [Bus](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#busn) voltage.<span></span>**Obsolete**, do not use! Use [`ELECTRICAL BUS VOLTAGE`](#ELECTRICAL-BUS-VOLTAGE). | Volts |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-OLD-CHARGING-AMPS" />}}<span class="obsolete">`ELECTRICAL OLD CHARGING AMPS`</span> | N/A | **Obsolete**, do not use! Use [`ELECTRICAL BATTERY LOAD`](#ELECTRICAL-BATTERY-LOAD). | Amps |  {{< check/bad >}}  |

{{< /table-wrapper >}}


### Batteries

This section contains the SimVars related to the electrical system batteries. Note that many of them will require the *name* of the component that they target. This name is given using the following format:

``` xml
[SimVar]:'[COMPONENT_NAME]'_n
```

For example:

``` xml
(A:ELECTRICAL BATTERY VOLTAGE:'Battery_1'_n, Volts)
```

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable | Index | Description | Units | Settable |
|---|---|---|---|:---:|
| {{< anchor id="BATTERY-BREAKER-PULLED" />}}`BATTERY BREAKER PULLED` | [0] Bus Index<span></span>[1] Battery Name (or index) | This will be `true` if the battery breaker is pulled. Requires a [`BUS LOOKUP INDEX`](#BUS-LOOKUP-INDEX) and a [Battery](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#batteryn) name (or index). | Bool |  {{< check/good >}}  |
| {{< anchor id="BATTERY-CONNECTION-ON" />}}`BATTERY CONNECTION ON` | [0] Bus Index<span></span>[1] Battery Name (or index) | This will be `true` if the battery is connected. Requires a [`BUS LOOKUP INDEX`](#BUS-LOOKUP-INDEX) and a [Battery](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#batteryn) name (or index). | Bool |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-BATTERY-ESTIMATED-CAPACITY-PCT" />}}`ELECTRICAL BATTERY ESTIMATED CAPACITY PCT` | Battery Name (or index) | The given [Battery](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#batteryn) capacity over max capacity, 100 is full. | Percent |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-BATTERY-LOAD" />}}`ELECTRICAL BATTERY LOAD` | Battery Name (or index) | The load handled by the named (or indexed) [Battery](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#batteryn), where negative values mean the battery is *receiving* current. | Amperes |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-BATTERY-VOLTAGE" />}}`ELECTRICAL BATTERY VOLTAGE` | Battery Name (or index) | The named (or indexed) [Battery](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#batteryn) voltage. | Volts |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-HOT-BATTERY-BUS-AMPS" />}}`ELECTRICAL HOT BATTERY BUS AMPS` | Battery Name (or index) | Current available when the battery switch is turned off | Amperes |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-HOT-BATTERY-BUS-VOLTAGE" />}}`ELECTRICAL HOT BATTERY BUS VOLTAGE` | Battery Name (or index) | Voltage available when the battery switch is turned off | Volts |  {{< check/good >}}  |
| {{< anchor id="ELECTRICAL-MASTER-BATTERY" />}}`ELECTRICAL MASTER BATTERY` | Battery Name (or index) | The named (or indexed) [Battery](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#batteryn) switch position, `true` if the switch is ON. | Bool |  {{< check/good >}}  |

{{< /table-wrapper >}}


### Breakers

All these SimVars can be used to get or set the breaker state for the electrical system (either `true` or `false`). If the breaker is popped (set to `false`), then the associated circuit will not receive electricity.

{{< callout context="note" title="NOTE" icon="outline/bulb" >}}

The variables here do not have any actual effect on the simulation by default and are [Convenience SimVars](../../simulation-variables/#convenience-simvars) for your own use.

{{< /callout >}}

{{< table-wrapper "colclass-2=font-size:0.75rem" >}}

| Simulation Variable | Index | Units | Settable |
|---|---|---|:---:|
| {{< anchor id="BREAKER-ADF" />}}`BREAKER ADF` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-ALTFLD" />}}`BREAKER ALTFLD` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-AUTOPILOT" />}}`BREAKER AUTOPILOT` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-AVNBUS1" />}}`BREAKER AVNBUS1` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-AVNBUS2" />}}`BREAKER AVNBUS2` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-AVNFAN" />}}`BREAKER AVNFAN` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-FLAP" />}}`BREAKER FLAP` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-GPS" />}}`BREAKER GPS` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-INST" />}}`BREAKER INST` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-INSTLTS" />}}`BREAKER INSTLTS` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-LTS-PWR" />}}`BREAKER LTS PWR` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-NAVCOM1" />}}`BREAKER NAVCOM1` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-NAVCOM2" />}}`BREAKER NAVCOM2` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-NAVCOM3" />}}`BREAKER NAVCOM3` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-NAVCOM4" />}}`BREAKER NAVCOM4` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-TURNCOORD" />}}`BREAKER TURNCOORD` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-WARN" />}}`BREAKER WARN` | N/A | Bool |  {{< check/good >}}  |
| {{< anchor id="BREAKER-XPNDR" />}}`BREAKER XPNDR` | N/A | Bool |  {{< check/good >}}  |

{{< /table-wrapper >}}


### Circuits

This section contains the SimVars related to the electrical circuits. Note that many of them will require the *name* of the component that they target. This name is given using the following format:

``` xml
[SimVar]:'[COMPONENT_NAME]'_n
```

For example:

``` xml
(A:ELECTRICAL CIRCUIT VOLTAGE:'Circuit_1'_n, Volts)
```

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable | Index | Description | Units | Settable |
|---|---|---|---|:---:|
| {{< anchor id="ELECTRICAL-CIRCUIT-EXISTS" />}}`ELECTRICAL CIRCUIT EXISTS` | Circuit Name (or index) | This can be used to find out if any circuit of the given type is present in the aircraft electrical system. Unlike other SimVars in this section, the index here is not a *specific* circuit, but rather the index of the circuit *type* as listed here: [Circuit Types](../../../../content-configuration/cfg-files/system/electric-system-setup-information/#circuit-types) | Bool |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-CIRCUIT-AMPS" />}}`ELECTRICAL CIRCUIT AMPS` | Circuit Name (or index) | This indicates the load being consumed (in amps) by the named (or indexed) [Circuit](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#circuitn). | Amps |  {{< check/bad >}}  |
| {{< anchor id="ELECTRICAL-CIRCUIT-VOLTAGE" />}}`ELECTRICAL CIRCUIT VOLTAGE` | Circuit Name (or index) | This indicates the tension intake (in volts) by the named (or indexed) [Circuit](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#circuitn). | Volts |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-AUTOPILOT-ON" />}}`CIRCUIT AUTOPILOT ON` | N/A | Is electrical power available to this circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-AUTO-BRAKES-ON" />}}`CIRCUIT AUTO BRAKES ON` | N/A | Is electrical power available to this circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-AUTO-FEATHER-ON" />}}`CIRCUIT AUTO FEATHER ON` | N/A | Is electrical power available to this circuit. Please see the [Note On AutoFeather](../../../..//content-configuration/cfg-files/engines/engines.cfg/#note-on-autofeathering) for more information. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-AVIONICS-ON" />}}`CIRCUIT AVIONICS ON` | N/A | Is electrical power available to the avionics circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-BREAKER-PULLED" />}}`CIRCUIT BREAKER PULLED` | [0] Bus Index<span></span>[1] Circuit Name (or index) | This will be `true` if the circuit breaker is pulled. Requires a  [`BUS LOOKUP INDEX`](#BUS-LOOKUP-INDEX) and a [Circuit](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#circuitn) name (or index). | Bool |  {{< check/good >}}  |
| {{< anchor id="CIRCUIT-CABIN-SIGNAL-GO" />}}`CIRCUIT CABIN SIGNAL GO` | N/A | Is electrical power available the to signal inside the plane to indicate to carry on with the activity (skydive, airdrop...) or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-CABIN-SIGNAL-STANDBY" />}}`CIRCUIT CABIN SIGNAL STANDBY` | N/A | Is electrical power available to the signal inside the plane to indicate to get ready and stand by until we are ready to carry on with the activity (skydive, airdrop...) | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-CABIN-SIGNAL-STOP" />}}`CIRCUIT CABIN SIGNAL STOP` | N/A | Is electrical power to the signal inside the plane to indicate whether an activity can be performed (skydive, airdrop...) stopped or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-COM-ON" />}}`CIRCUIT COM ON` | N/A | Is electrical power available to the COM circuit or not. | Bool |  {{< check/good >}}  |
| {{< anchor id="CIRCUIT-CONNECTION-ON" />}}`CIRCUIT CONNECTION ON` | [0] Bus Index<span></span>[1] Circuit Name (or index) | This will be `true` if the circuit is connected. Requires a  [`BUS LOOKUP INDEX`](#BUS-LOOKUP-INDEX) and a [Circuit](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#circuitn) name (or index). | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-ELECTRIC-ENGINE-ON" />}}`CIRCUIT ELECTRIC ENGINE ON` | N/A | Is electrical power available to the electric engine circuit | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-FLAP-MOTOR-ON" />}}`CIRCUIT FLAP MOTOR ON` | N/A | Is electrical power available to the flap motor circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-GEAR-MOTOR-ON" />}}`CIRCUIT GEAR MOTOR ON` | N/A | Is electrical power available to the gear motor circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-GEAR-WARNING-ON" />}}`CIRCUIT GEAR WARNING ON` | N/A | Is electrical power available to gear warning circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-GENERAL-PANEL-ON" />}}`CIRCUIT GENERAL PANEL ON` | N/A | Is electrical power available to the general panel circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-HOIST-ON" />}}`CIRCUIT HOIST ON` | N/A | Is electrical power available to the hoist circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-HYDRAULIC-PUMP-ON" />}}`CIRCUIT HYDRAULIC PUMP ON` | N/A | Is electrical power available to the hydraulic pump circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-HYDRAULIC-VALVE-ON" />}}`CIRCUIT HYDRAULIC VALVE ON` | N/A | Is electrical power available to the hydraulic valve circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-MARKER-BEACON-ON" />}}`CIRCUIT MARKER BEACON ON` | N/A | Is electrical power available to the marker beacon circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-NAV-ON" />}}`CIRCUIT NAV ON` | N/A | Is electrical power available to the NAV circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-NAVCOM1-ON" />}}`CIRCUIT NAVCOM1 ON` | N/A | Whether or not power is available to the NAVCOM1 circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-NAVCOM2-ON" />}}`CIRCUIT NAVCOM2 ON` | N/A | Whether or not power is available to the NAVCOM2 circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-NAVCOM3-ON" />}}`CIRCUIT NAVCOM3 ON` | N/A | Whether or not power is available to the NAVCOM3 circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-NAVCOM4-ON" />}}`CIRCUIT NAVCOM4 ON` | N/A | Whether or not power is available to the NAVCOM4 circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-ON" />}}`CIRCUIT ON` | Circuit Name (or index) | This will be `true` if the given circuit is functioning. Use a [Circuit](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#circuitn) name (or index) when referencing. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-PITOT-HEAT-ON" />}}`CIRCUIT PITOT HEAT ON` | N/A | Is electrical power available to the pitot heat circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-POWER-SETTING" />}}`CIRCUIT POWER SETTING` | Circuit Name (or index) | This returns the percentage of use that the circuit is getting. This requires a [Circuit](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#circuitn) name (or index) when referencing. | Percent |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-PROP-SYNC-ON" />}}`CIRCUIT PROP SYNC ON` | N/A | Is electrical power available to the propeller sync circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-ROTOR-BRAKE-ON" />}}`CIRCUIT ROTOR BRAKE ON` | N/A | Is electrical power available to the rotor braking circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-SLING-ON" />}}`CIRCUIT SLING ON` | N/A | Is electrical power available to the sling circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-STALL-WARNING-ON" />}}`CIRCUIT STALL WARNING ON` | N/A | Is electrical power available to stall warning circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-STANDBY-VACUUM-ON" />}}`CIRCUIT STANDBY VACUUM ON` | N/A | Is electrical power available to the vacuum circuit or not. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-SWITCH-ON" />}}`CIRCUIT SWITCH ON` | Circuit Name (or index) | The circuit switch position, `true` if the switch is ON. Use a [Circuit](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#circuitn) name (or index) when referencing. | Bool |  {{< check/bad >}}  |
| {{< anchor id="CIRCUIT-TRANSPONDER-ON" />}}`CIRCUIT TRANSPONDER ON` | N/A | Is electrical power available to the transponder or not. | Bool |  {{< check/bad >}}  |

{{< /table-wrapper >}}


### Generators

This section contains the SimVars related to the electrical generators. Note that many of them will require the *name* of the component that they target. This name is given using the following format:

``` xml
[SimVar]:'[COMPONENT_NAME]'_n
```

For example:

``` xml
(A:ELECTRICAL GENERATOR VOLTAGE:'Gen_1'_n, Volts)
```

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable     | Index    | Description| Units |Settable     |
|---|---|---|---|:---:|
| {{< anchor id="ELECTRICAL-GENERATOR-ACTIVE" />}}`ELECTRICAL GENERATOR ACTIVE` | Generator Name (or index) | This indicates whether or not the named (or indexed) [Generator](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#generatorn) is outputting tension.     | Bool  | {{< check/bad >}} |
| {{< anchor id="ELECTRICAL-GENERATOR-AMPS" />}}`ELECTRICAL GENERATOR AMPS` | Generator Name (or index) | This indicates the load being drawn (in amps) by the named (or indexed) [Generator](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#generatorn).  | Amps  | {{< check/bad >}} |
| {{< anchor id="ELECTRICAL-GENERATOR-VOLTAGE" />}}`ELECTRICAL GENERATOR VOLTAGE` | Generator Name (or index) | This indicates the tension output (in volts) by the named (or indexed) [Generator](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#generatorn).   | Volts | {{< check/bad >}} |
| {{< anchor id="ELECTRICAL-GENERATOR-SWITCH" />}}`ELECTRICAL GENERATOR SWITCH` | Generator Name (or index) | This can be used to either retrieve whether the named (or indexed) [Generator](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#generatorn) is currently switched on or not, or it can be used set whether the generator is on or off. | Bool  | {{< check/good >}} |

{{< /table-wrapper >}}


### Relays

This section contains the SimVars related to the electric relays. Note that many of them will require the *name* of the component that they target. This name is given using the following format:

``` xml
[SimVar]:'[COMPONENT_NAME]'_n
```

For example:

``` xml
(A:ELECTRICAL RELAY LINE OPEN:'Relay_1'_n, Bool)
```

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable     | Index| Description  | Units |Settable     |
|---|---|---|---|:---:|
| {{< anchor id="ELECTRICAL-RELAY-AMPS" />}}`ELECTRICAL RELAY AMPS` | Relay Name (or index) | This indicates the load being drawn (in amps) by the named (or indexed) [Relay](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#relayn).| Amps  | {{< check/bad >}} |
| {{< anchor id="ELECTRICAL-RELAY-BREAKER-PULLED" />}}`ELECTRICAL RELAY BREAKER PULLED` | Relay Name (or index) | This indicates whether or not the breaker for the named (or indexed) [Relay](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#relayn) has been pulled (1, TRUE) or not (0, FALSE). | Bool  | {{< check/good >}} |
| {{< anchor id="ELECTRICAL-RELAY-CONNECTION-ON" />}}`ELECTRICAL RELAY CONNECTION ON` | Relay Name (or index) | This indicates the status of the line connected to the (or indexed) [Relay](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#relayn). Either connected (1, TRUE) or disconnected (0, FALSE).   | Bool  | {{< check/good >}} |
| {{< anchor id="ELECTRICAL-RELAY-LINE-OPEN" />}}`ELECTRICAL RELAY LINE OPEN` | Relay Name (or index) | This indicates whether or not the line managed by the named (or indexed) [Relay](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#relayn) is connected (1, TRUE) or not (0, FALSE). Note that relay line disconnection is different to [Line](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#linen) disconnection. | Bool  | {{< check/bad >}} |
| {{< anchor id="ELECTRICAL-RELAY-POWERED" />}}`ELECTRICAL RELAY POWERED` | Relay Name (or index) | This indicates the named (or indexed) [Relay](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#relayn) is powered (1, TRUE) or not (0, FALSE). | Bool  | {{< check/bad >}} |
| {{< anchor id="ELECTRICAL-RELAY-VOLTAGE" />}}`ELECTRICAL RELAY VOLTAGE` | Relay Name (or index) | This indicates the tension output (in volts) by the named (or indexed) [Relay](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#relayn). | Volts | {{< check/bad >}} |

{{< /table-wrapper >}}


### External Power

This section contains the SimVars related to the external power sources. Note that many of them will require the *name* of the component that they target. This name is given using the following format:

``` xml
[SimVar]:'[COMPONENT_NAME]'_n
```

For example:

``` xml
(A:ELECTRICAL EXTERNAL POWER VOLTAGE:'Power_1'_n, Volts)
```

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable   | Index    | Description  | Units |Settable     |
|---|---|---|---|:---:|
| {{< anchor id="ELECTRICAL-EXTERNAL-POWER-AMPS" />}}`ELECTRICAL EXTERNAL POWER AMPS` | External Power Source Name (or index) | This indicates the load being drawn (in amps) by the named (or indexed) [ExternalPower](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#externalpowern) source. | Amps  | {{< check/bad >}} |
| {{< anchor id="ELECTRICAL-EXTERNAL-POWER-VOLTAGE" />}}`ELECTRICAL EXTERNAL POWER VOLTAGE` | External Power Source Name (or index) | This indicates the tension output (in volts) by the named (or indexed) [ExternalPower](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#externalpowern) source.  | Volts | {{< check/bad >}} |
| {{< anchor id="EXTERNAL-POWER-AVAILABLE" />}}`EXTERNAL POWER AVAILABLE` | External Power Source Name (or index) | This will be `true` if the the named (or indexed) [ExternalPower](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#externalpowern) source is available.    | Bool  | {{< check/bad >}} |
| {{< anchor id="EXTERNAL-POWER-BREAKER-PULLED" />}}`EXTERNAL POWER BREAKER PULLED` | External Power Source Name (or index) | The state of the breaker of the named (or indexed) [ExternalPower](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#externalpowern) source.    | Bool  | {{< check/good >}} |
| {{< anchor id="EXTERNAL-POWER-CONNECTION-ON" />}}`EXTERNAL POWER CONNECTION ON` | External Power Source Name (or index) | The state of the connection between a bus and the named (or indexed) [ExternalPower](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#externalpowern) source.    | Bool  | {{< check/bad >}} |
| {{< anchor id="EXTERNAL-POWER-ON" />}}`EXTERNAL POWER ON` | External Power Source Name (or index) | The named (or indexed) [ExternalPower](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#externalpowern) source switch position, `true` if the switch is ON.| Bool  | {{< check/bad >}} |

{{< /table-wrapper >}}


### Lines

This section contains the SimVars related to the power lines in the electrical system. Note that many of them will require the *name* of the component that they target. This name is given using the following format:

``` xml
[SimVar]:'[COMPONENT_NAME]'_n
```

For example:

``` xml
(A:LINE CONNECTION ON:'Line_1'_n, Volts)
```

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable     | Index     | Description   | Units |   Settable   |
|---|---|---|---|:---:|
| {{< anchor id="LINE-CONNECTION-ON" />}}`LINE CONNECTION ON` | Line Name (or index) | The current status of the named (or indexed) [Line](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#linen) connection, either 1 (TRUE) for on, or 0 (FALSE) for off.   | Bool  | {{< check/good >}} |
| {{< anchor id="LINE-BREAKER-PULLED" />}}`LINE BREAKER PULLED` | Line Name (or index) | The current status of the named (or indexed) [Line](../../../../content-configuration/cfg-files/system/modular-electrical-system-information/#linen) breaker, either 1 (TRUE) for pulled, or 0 (FALSE) for not pulled. | Bool  | {{< check/good >}} |

{{< /table-wrapper >}}


### Alternators

{{< callout context="caution" title="IMPORTANT!" icon="outline/alert-triangle" >}}

These SimVars are only useful when working with the v1.00 electrical system. See here for more information: [LEGACY: systems.cfg - \[ELECTRICAL\]](../../../../content-configuration/cfg-files/system/legacy-electrical-system/)

{{< /callout >}}

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable | Index   | Description  | Units |Settable     |
|---|---|---|---|:---:|
| {{< anchor id="ALTERNATOR-BREAKER-PULLED" />}}<span class="legacy">`ALTERNATOR BREAKER PULLED`</span> | N/A    | This will be `true` if the alternator breaker is pulled. Requires a  [`BUS LOOKUP INDEX`](#BUS-LOOKUP-INDEX) and an alternator index.    | Bool  | {{< check/good >}} |
| {{< anchor id="ALTERNATOR-CONNECTION-ON" />}}<span class="legacy">`ALTERNATOR CONNECTION ON`</span> | N/A    | This will be `true` if the alternator is connected. Requires a  [`BUS LOOKUP INDEX`](#BUS-LOOKUP-INDEX) and an alternator index.   | Bool  | {{< check/bad >}} |
| {{< anchor id="GENERAL-ENG-MASTER-ALTERNATOR" />}}<span class="legacy">`GENERAL ENG MASTER ALTERNATOR`</span> | Engine Index | The alternator (generator) switch position, `true` if the switch is ON. Requires an engine index, and the use of an alternator index when referencing. | Bool  | {{< check/bad >}} |

{{< /table-wrapper >}}


### APU

{{< table-wrapper "colclass-2=font-size:0.75rem" "200px" "100px" "" "150px" "100px" >}}

| Simulation Variable     | Index| Description | Units    |Settable     |
|---|---|---|---|:---:|
| {{< anchor id="APU-BLEED-PRESSURE-RECEIVED-BY-ENGINE" />}}`APU BLEED PRESSURE RECEIVED BY ENGINE` | Engine Index    | Bleed air pressure received by the engine from the {{< glossterm >}}apu{{< /glossterm >}}. | Pounds per square inch ({{< glossterm >}}psi{{< /glossterm >}}) | {{< check/bad >}} |
| {{< anchor id="APU-GENERATOR-ACTIVE" />}}`APU GENERATOR ACTIVE` | Generator Index | Set or get whether an {{< glossterm >}}apu{{< /glossterm >}} is active (true) or not (false). Takes an index to be able to have multiple generators on a single {{< glossterm >}}apu{{< /glossterm >}}. | Bool     | {{< check/good >}} |
| {{< anchor id="APU-GENERATOR-SWITCH" />}}`APU GENERATOR SWITCH` | Generator Index | Enables or disables the {{< glossterm >}}apu{{< /glossterm >}} for an engine. Takes an index to be able to have multiple generators on a single {{< glossterm >}}apu.{{< /glossterm >}}     | Bool     | {{< check/bad >}} |
| {{< anchor id="APU-ON-FIRE-DETECTED" />}}`APU ON FIRE DETECTED` | N/A | Will return true if the {{< glossterm >}}apu{{< /glossterm >}} is on fire, or false otherwise.   | Bool     | {{< check/bad >}} |
| {{< anchor id="APU-PCT-RPM" />}}`APU PCT RPM` | N/A | Auxiliary power unit {{< glossterm >}}rpm{{< /glossterm >}}, as a percentage   | {{< glossterm >}}percent_over_100{{< /glossterm >}} | {{< check/bad >}} |
| {{< anchor id="APU-PCT-STARTER" />}}`APU PCT STARTER` | N/A | Auxiliary power unit starter, as a percentage   | {{< glossterm >}}percent_over_100{{< /glossterm >}} | {{< check/bad >}} |
| {{< anchor id="APU-SWITCH" />}}`APU SWITCH` | N/A | Boolean, whether or not the {{< glossterm >}}apu{{< /glossterm >}} is switched on.   | Bool     | {{< check/good >}} |
| {{< anchor id="APU-VOLTS" />}}`APU VOLTS` | N/A | The volts from the {{< glossterm >}}apu{{< /glossterm >}} to the selected engine. Takes an index to be able to have multiple generators on a single {{< glossterm >}}apu{{< /glossterm >}}. | Volts    | {{< check/bad >}} |
| {{< anchor id="BLEED-AIR-APU" />}}`BLEED AIR APU` | N/A | Boolean, returns whether or not the {{< glossterm >}}apu{{< /glossterm >}} attempts to provide Bleed Air.    | Bool     | {{< check/bad >}} |

{{< /table-wrapper >}}