Table 1-5 Gma 245/245R Power Requirements; Table 1-6 Gma 245 Power Requirements; Table 1-7 Gma 245R Power Requirements - Garmin GMA 245 Installation Manual

1.3.3 Power Requirements
The GMA 245/245R will operate down to emergency voltage (9 Volts). Below 11 Volts, the USB charge
port and the speaker are disabled.
Characteristic
Input Voltage Range
Leakage Current*
*Current the unit draws if turned off (GMA 245 is turned of by the knob, GMA 245R can only be turned
off by breaker).
Characteristic
Idle Current*
Typical Operating Current without USB charge
port being used.
Maximum Current with no USB charge port
connection
Maximum Current with USB charge port
connection
*Unit current drawn with power applied, no audio, and minimum lighting.
Characteristic
Idle Current*
Typical Operating Current without USB charge
port being used.
Maximum Current with no USB charge port
connection
Maximum Current with USB charge port
connection
*Unit current drawn with power applied, no audio.
190-01879-11
Rev. 6

Table 1-5 GMA 245/245R Power Requirements

Table 1-6 GMA 245 Power Requirements

Table 1-7 GMA 245R Power Requirements

Specification
11 to 33 Vdc
< 1 mA
Current Draw
0.32 A @ 14 VDC
0.18 A @ 28 VDC
0.77 A @ 14 VDC
0.40 A @ 28 VDC
1.11 A @ 14 VDC
0.87 A @ 28 VDC
2.31 A @ 14 VDC
1.45 A @ 28 VDC
Current Draw
0.32 A @ 14 VDC
0.18 A @ 28 VDC
0.60 A @ 14 VDC
0.32 A @ 28 VDC
0.92 A @ 14 VDC
0.77 A @ 28 VDC
2.1 A @ 14 VDC
1.35 A @ 28 VDC
GMA 245/245R Installation Manual
Power Consumption
4.48 W @ 14 VDC
5.04 W @ 28 VDC
10.78 W @ 14 VDC
11.20 W @ 28 VDC
15.54 W @ 14 VDC
24.36 W @ 28 VDC
32.34 W @ 14 VDC
40.60 W @ 28 VDC
Power Consumption
4.48 W @ 14 VDC
5.04 W @ 28 VDC
8.40 W @ 14 VDC
8.96 W @ 28 VDC
12.88 W @ 14 VDC
21.56 W @ 28 VDC
29.40 W @ 14 VDC
37.80 W @ 28 VDC
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