190-01115-01
G3X/G3X Touch Installation Manual - Installation Preparation
Rev. AC
Page 2-13
2.2.1.2 Other LRU Power Requirements
Table 2-2 G3X LRU Power Requirements
LRU
Supply Voltage
Current Draw
GAD 27
14 Vdc
0.2 Amp (varies with connected devices)
28 Vdc
Not supported, do not use in 28V installations
GAD 29
14 Vdc
0.2 Amp
28 Vdc
0.1 Amp
GDL 39/39R
14 Vdc
0.25 Amp
28 Vdc
0.125 Amp
GDL 51R
14 Vdc
0.16 Amp
28 Vdc
0.09 Amp
GDL 52R
14 Vdc
0.29 Amp
28 Vdc
0.15 Amp
GDU 37X**
14 Vdc
1.10 Amp
28 Vdc
0.540 Amp
GDU 45X**
14 Vdc
1.25 Amp
28 Vdc
0.7 Amp
GDU 46X**
14 Vdc
2.0 Amp
28 Vdc
1.0 Amp
GDU 470**
14 Vdc
1.25 Amp
28 Vdc
0.7 Amp
GEA 24
14 Vdc
0.43 Amp max (typical external sensor loading)
28 Vdc
0.21 Amp max (typical external sensor loading)
GI 260
14 Vdc
0.4 Amp
28 Vdc
0.2 Amp
GMC 305
14 Vdc
0.050 A (50 mA)
28 Vdc
0.028 A (28 mA)
GMC 307
14 Vdc
0.120 A (120 mA)
28 Vdc
0.067 A (67 mA)
GMU 11
14/28 Vdc
0.1 A (100 mA)
GMU 22
12 Vdc
(from GSU 25/GSU 73)
Inc. in GSU 25/GSU 73 Current Draw
GPS 20A
14 Vdc
0.2 Amp
28 Vdc
0.1 Amp
*Garmin recommends using Mod 1 level GSU 73 in aircraft that use a +28 V supply voltage and intend to monitor
current on high voltage devices such as the aircraft alternator.
**The specified current draw is measured with the display backlight set to 100%