Instruction Manual

Page 2-18 G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 4 190-00716-01
2.4 Electrical Load Utilization
The following chart lists the electrical equipment and their associated loads for each of the standard and
optional items installed on the King Air 300 series airplanes with the installation of G1000. The loads
specified are used to verify the electrical buses, generating system and batterys are operated within their
limits and capacity. For electrical load test procedure and electrical load test report, refer to Garmin
documents 190-00716-00 (Post Installation Checkout Procedure King Air 300/B300 Series) and 005-
00629-22 (Electrical Load Test Report G1000 integrated Avionics System Hawker/Beechcraft Model
300/B300 King Air) respectively.
Table 2-1, Electrical Loads
Equipment
Units
Used
Ea. Unit
(Amps DC)
Part Number Notes
Battery Bus
Left Generator Bus
Avionics Left Generator Bus
GIA 63W – COM #2 1 4.3 A Max
See Note
011-01105-20 0.3 A – Not Transmitting
4.3 A – Transmitting
GMA 1347D #2 – Audio Panel 1 1.75 A 011-01257-20
GTX 33 Transponder #2
or
GTX 33D Transponder #2
or
GTX 3000 Transponder #2
1
1.6 A 011-00779-30
1.6 A 011-00779-21
1.6 A 011-01997-00
GWX 68 Weather Radar
or
GWX 70 Weather Radar
1
2 A 011-00883-20
2.5 A 011-01768-00
Right Generator Bus
Avionics Right Generator Fed Avionics Bus
GDL 69A Data Link 1 0.35 A 011-00987-00
GDL 59 Wi-Fi 1 0.572 A 011-01746-00
GTS Processor
or
GTS 820 Traffic Processor
or
GTS 850 Traffic Processor
1
2.5 A 011-02571-00
1.6 A 011-01446-00
1.6 A 011-01553-00
GRA 5500 Radio Altimeter 1 0.5A 011-02537-00
GSR 56 Iridium/Iridium Heater 1 1.86A 011-02268-00 or
011-02268-01
Center Bus
GDU 1040A PFD #1 1 2.5 A Max
See Notes
011-00916-10 Secondary power input
1.3A above -15°C
2.5A below -15°C