True blue power TC280 Series, Manual

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7 Manual Number 9018530 • Revision C, May 7, 2020
SECTION 3 INSTALLATION
3.1 GENERAL INFORMATION
This section contains interconnect diagrams, mounting dimensions and other information
pertaining to the installation of the TC280 Series Static Converter. After installation of cabling and
before installation of the equipment, ensure that power is applied only to the pins specified in the
interconnect diagram.
3.2 UNPACKING AND INSPECTING EQUIPMENT
When unpacking this equipment, make a visual inspection for evidence of any damage that may
have incurred during shipment. The following parts should be included:
A. Static Converter MCIA P/N 6430280-( )
B. Mating Connector (& cable clamp) MCIA P/N 9016905-1 and 9016905-2
C. Installation Manual MCIA P/N 9018530
Equipment not provided:
A. Mounting Hardware Four 10-32 pan head screws
#10 lock washers (optional)
B. Cable Harness Wire See Section 3.3 for specifications
3.3 CABLE HARNESS
Construct the cable harness with regards to the instructions below, and using Figures 3.3 – 3.5,
and Wiring Diagram of Table 3.3.
Refer to Section 2: Pre-Installation Considerations in regards to routing precautions.
Wire Gauge Selection
Use of PTFE, ETFE, TFE, Teflon, or tefzel insulated wire is recommended for aircraft use.
Use the following wire gauges for each of the pins in the connector:
Pins A and D – 12-14 AWG stranded or solid
Pins B and C – 18-20 AWG stranded or solid
Pins E and G – 18-24 AWG stranded or solid
Pin Assignment Information
CONVERTER INPUT POWER:
Positive AC input – 115 VAC. Connect to the aircraft 115 VAC bus using a 5 Amp circuit
breaker.
Negative AC input – Connect to aircraft ground.
Note: Two common practices for the connecting the -28V output power devices in aircraft
are:
1. The negative lead connects from the device to the negative power bus.
2. The negative lead connects from the device to the negative power bus, and a second
lead connects to the aircraft structure close to the power device.
The TC280 Series passes DO160G Section 21 Table 1.2.3 conducted emissions testing
using both methods.