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Power consumption for Garmin Avionics

MS19087

Well Known Member
Working on my electrical design. I am wanting to find out the typical current draw of several avionics units. I can't readily find these figures doing a search. I am looking for the following current draw:

Garmin GNX375
Garmin 507 controller with 2 servos running
GTR-20 Remote VHF radio.
CNC-255 Nav/Comm
GMA-245 audio panel

Any input is greatly appreciated.
 
G3X LRU Power Consumption

Working on my electrical design. I am wanting to find out the typical current draw of several avionics units. I can't readily find these figures doing a search. I am looking for the following current draw:

Garmin GNX375
Garmin 507 controller with 2 servos running
GTR-20 Remote VHF radio.
CNC-255 Nav/Comm
GMA-245 audio panel

Any input is greatly appreciated.

Good Afternoon,

All values provided for a 14V electrical system:

Garmin GNX375 -1.20A Typical, 1.80A Maximum
Garmin 507 Controller - 0.20A
Garmin GSA 28 Autopilot Servo (each) - 0.36A Typical, 1.80A Maximum, 2.80A Maximum with 1A trim motor at full load.
GTR-20 Remote VHF radio - 0.6A Typical when Receiving, 3.0A Typical when Transmitting. 7.50A Maximum, 90% modulated into 3:1 VSWR and 11V power input voltage.
GNC-255 NAV/COM - (0.60A/0.59A) Typical, (1.16A/4.2A) Maximum
GMA-245 Audio Panel - 0.32A Idle Current (Unit current drawn with power applied, no audio, and minimum lighting), 0.77A Typical Operating Current without USB Charge Port Being Used, 1.11A Maximum Current with no USB Charge Port Connection, 2.31A Maximum Current with USB Charge Port Connection.

Please feel free to send any other questions our way!

Thanks,

Justin
 
Thanks Justin

Good Afternoon,

All values provided for a 14V electrical system:

Garmin GNX375 -1.20A Typical, 1.80A Maximum
Garmin 507 Controller - 0.20A
Garmin GSA 28 Autopilot Servo (each) - 0.36A Typical, 1.80A Maximum, 2.80A Maximum with 1A trim motor at full load.
GTR-20 Remote VHF radio - 0.6A Typical when Receiving, 3.0A Typical when Transmitting. 7.50A Maximum, 90% modulated into 3:1 VSWR and 11V power input voltage.
GNC-255 NAV/COM - (0.60A/0.59A) Typical, (1.16A/4.2A) Maximum
GMA-245 Audio Panel - 0.32A Idle Current (Unit current drawn with power applied, no audio, and minimum lighting), 0.77A Typical Operating Current without USB Charge Port Being Used, 1.11A Maximum Current with no USB Charge Port Connection, 2.31A Maximum Current with USB Charge Port Connection.

Please feel free to send any other questions our way!

Thanks,

Justin

Much appreciated.
 
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