Tronair 112860S0100 – Single-Output 28V DC Aircraft Rectifier (GPU) (CE) - 60 HZ Input Power
It has been replaced by Tronair 1128161E0CH (Qty 1)
Need a Quote?
The Tronair 112860S0100 is a 28V DC aircraft rectifier/ground power unit that provides DC ground power to the aircraft while in the hangar or on the ramp. These units operate on a 3-phase input voltage - 60 HZ. (50 HZ models are available)
Many systems and devices in the aviation industry, and other fields, require a DC voltage of 28 volts. As this cannot be supplied by the utility directly, converters are employed which supply the necessary voltage and eliminate supply irregularities to a limited extent.
Normally these units are used to supply smaller aircraft with electric power. There are special reasons why aircraft need a 28V DC voltage for internal supply. They save costs in maintenance and operation, and also for environmental reasons, aircraft are supplied by external electrical power supplies when they are parked at airport terminal stands with their engines shut down.
Available Options
Please request any options at the time of quote.
- Both single-output and dual-output versions are available
- Available with either a 100', 50', or no input cable depending on your specific needs
Standard Features
- Under 52 dB during normal operation, 60 dB maximum
- Clean-power, low-voltage ripple <.2 VDC RMS
- 15 A, 115 VAC, duplex GFIC weatherproof receptacle with cover on 60 Hz Models
- MIL-STD-704F and 18" NEC compliant
- Energy-saving thermal control cooling fan
- Low profile fits under most wings
- Sturdy, all-weather IP54 enclosure with cord hangers
- Long-life LED indicator lights that double as a diagnostic tool
- Main disconnect switch
- DC On/Off switch
- Emergency stop switch
- Large 9 in (23 cm) rubber ridgid and lockable swivel casters for easy maneuverability
- Adjustable current limit output
- Simple to use
- Easy to change multi-volt transformer
- CE marked
- Durable powder-coat finish (Tronair Blue)
- Two-year Tronair Platinum warranty
Cable Length
- 20 ft (6.1 m) output cable with AN2551 aircraft DC connector on single-output models
- 50 ft (12.2 m) input cable [100 ft (30.5 m) input cable optional] electric plug not included on the input cable
Input Voltage
- Voltage Range: 200V to 480V +/- 10%+/- 10%
- Power: 25 KVA
- Phase: 3-Phase
- Frequency: 60 Hz
Output
- Voltage 28.5V DC
- Current Limit (Adjustable): 100 to 2,000 max. amps DC
- Continuous Power: 600 amps at 28.5V DC
- Starting Power: 2000 amps
Protection
- Output over/under voltage
- Output overcurrent
- Input phase loss detection, missing phase
- Input over/under voltage
- Input Circuit Breaker 100 amps
- Transformer over temperature
- SCR over temperature
Thermal Protection
- Cooling fan temperature controlled variable speed
Technical Specifications
- Dimensions: 33" H x 31" W x 42" L (84 x 79 x 107 cm)
- Weight: 702 lbs. (318 kg)
- Output Cable: Single
- Input Cable: 50 ft. (15.2 cm)
- Voltage: 208V to 480V
- Input: 60 Hz
| Alternate Models | |
|---|---|
| 112860S0000 | 60Hz, 28.5V Single Output, No Cable (CE) |
| 112860S0200 | 60Hz, 28.5V Single Output, 100' Cable (CE) |
| 112865S0100 | CSA, Single Output, 50' Cable |
| General Information | |
|---|---|
| Part # | 112860S0100 |
| Manufacturer | Tronair |
| Manual 1 | View 112860S0100 User Manual |
| Warranty | |
|---|---|
| Details | 2 Year Limited Tronair Platinum Warranty |
| Shipping Information | |
|---|---|
| Shipping Weight | 930 lbs. |
| Shipping Dimensions | 64 x 48 x 45 in. |
| Freight NMFC | 61700 |
| Schedule B | 8504409540 |
| ECCN | EAR99 |
| Spare Parts | |
|---|---|
| 12002 | Circuit Breaker, 5 Amp |
| 12031 | Knob, DC |
| 12034 | PCB Stand Offs |
| 12048 | Split Polyloom ½", 36 in |
| 12085 | Split Polyloom 1", 36 in |
| 13002 | Shunt Resistor |
| 13064 | Relay, Compact 24VDC (Dual) |
| 13070 | Anchor, Din Rail End |
| 13072*008.50 | Rail, Din |
| 13074 | Socket, Relay 11 PIN (Dual) |
| 13092 | Cradle, Mounting |
| 14008 | DC Ammeter |
| 14009 | Voltmeter DC |
| 14130 | Switch, Power On/Off |
| 14131 | Switch On/Off |
| 14132 | Switch, Emergency Stop |
| 14142 | Flange, Latch (Dual) |
| 14143 | Block, Contact Green (Dual) |
| 14144 | Block, Contact Red (Dual) |
| 4002-6 | Diode, Power |
| CRHX1806-62 | Plug, Insert (Loose, 112860S0100-A4 ONLY) |
| CRHX1806-71 | Plug, Input Male (112860S0100-A4 ONLY) |
| CRHX1806-91 | Receptacle, Female (Loose, 112860S0100-A4 ONLY) |
| EC-1027 | Contactor, DC Output (Single) |
| EC-2008 | LED Amber |
| EC-2008-02 | LED Green (Dual) |
| EC-2008-03 | LED Red |
| EC-2065 | Plate, End 4C Terminal Block |
| EC-2083 | Terminal Block, 4 Pole Lt Gray |
| EC-2084 | Terminal Block, 4 Pole Red |
| EC-2085 | Diode, Plug-In Relay Socket (Dual) |
| EC-2127 | Firing Board |
| EC-2128 | SCR Pak |
| EC-2129 | Interface Board |
| EC-2138 | Fan Speed Controller w/Probe |
| EC-2141 | Capacitor, Fan Motor |
| EC-2144-07 | Potentiometer, 10K Sealed |
| EC-2156 | Transformer, 117V – 24VT |
| EC-2157 | Transformer, Control 115/24 VAC, 4A |
| EC-2158 | Temp Sensor |
| EC-2159 | Circuit Breaker, 25 Amp |
| EC-2163 | P2 Interface Board Harness |
| EC-2164 | P3 Interface Board Harness |
| EC-2165 | P6 Interface Harness |
| EC-2166 | P8 Interface Board Harness |
| EC-2167 | P9 Interface Board Harness |
| EC-2169 | Circuit Breaker, 100 Amp |
| EC-2176 | Connector, Lag 3/8 Stud |
| EC-2177 | Relay, High Circuit |
| G-1112-105006 | Bolt, ¼ - 20 x ¾ HH SS |
| G-1112-105020 | Bolt, ¼ - 20 x 2, HH SS |
| G-1112-107010 | Bolt, 3/8 – 16 x 1.0 LG, HH SS |
| G-1112-107012 | Bolt, 3/8 - 16 x 1 ¼ LG, HH SS |
| G-1112-107020 | Bolt, 3/8 - 16 2.0 LG, HH SS |
| G-1351-03-SS | Rivet, 1/8 Open End SS |
| G-1439-1050-S | Nutsert, Thinwall ¼ - 20 |
| G-1439-1070-S | Nutsert, 3/8 – 16 Open End |
| G-1497-101002 | SCR, 6-32 x ¼ RD HD PH SS |
| G-1497-101034 | SCR, 6-32 x 3 ½ RD HD PH SS |
| G-1497-102006 | SCR, 8-32 x ½ RD HD PH SS |
| G-1497-103104 | SCR, 10-32 x ½ RD HD PH SS |
| G-1500-1070 | Nut, 3/8 – 16 HH SS |
| G-1501-1010 | Stopnut, 6-32 Elastic SS |
| G-1501-1020 | Stopnut, 8-32 Elastic SS |
| G-1501-1031 | Stopnut, 10-32 Elastic SS |
| G-1501-1050 | Stopnut, ¼ - 20 Elastic SS |
| G-1502-1050R | Lockwasher, ¼ Regular SS |
| G-1502-1070R | Lockwasher, 3/8 Regular SS |
| G-1503-1010N | Flatwasher, 6 Narrow SS |
| G-1503-1030N | Flatwasher, 10 Narrow SS |
| G-1503-1050N | Flatwasher, ¼ Narrow SS |
| G-1503-1070N | Flatwasher, 3/8 Narrow SS |
| G-1577-19 | Fastener, ¼ Turn |
| G-1578 | Retainer, ¼ Turn Fastener |
| G-1579 | Washer, Sealing ¼ Turn |
| G-1580 | Door, Latch Receptacle |
| H-3155 | Handle, Circuit Breaker |
| H-3191*084.50 | Tape, Neoprene Foam Seal |
| J-4324 | Buss Bar Bridg |
| S-2293 | Door/Control panel |
| U-1085 | Caster, Swivel |
| U-1112 | Caster, Rigid |
| V-1033 | Label, Tronair |
| V-1050 | Label, ISO Electrical |
| V-1986 | Label, Read Manual |
| V-2097 | Label, Warning |
| V-2258 | Label, Serial Number CE |
| Z-6897-01 | Weldment, Frame |
| Z-6897-SP | Weldment, Frame (Special Paint) |
| Z-6900 | Assembly, Capacitors |
| Z-6943 | Assy., Transformer |
Customers also viewed
Customers who bought this item also purchased
AIRCRAFT COMPATIBILITY
PRODUCT REVIEWS
QUESTIONS & ANSWERS
No, 50 amps is not sufficient to power this ground power unit. The minimum required amperage is 56 amps to ensure proper and reliable operation. Using a power source with only 50 amps may lead to insufficient startup power, underperformance, or even damage to the unit. Always confirm that your electrical supply meets or exceeds the required 56-amp threshold to avoid potential issues during use.
By supplying stable, regulated 28V DC power directly to the aircraft, the unit enables technicians to perform avionics testing, software updates, lighting checks, and other electrical functions without running the engines or using onboard batteries. This reduces engine wear, conserves battery life, and speeds up preflight readiness.
The Tronair 112860S0100 includes built-in overvoltage, overcurrent, and short-circuit protection systems. These safety features help prevent damage to both the GPU and the aircraft’s electrical system in the event of a power surge or equipment fault. An internal circuit breaker and reset function offer added peace of mind during operation.
Yes! The rectifier is mounted on a steel towable frame with pneumatic wheels and a steering handle, making it easy to maneuver across hangar floors or ramps. Its compact footprint allows for convenient positioning, even in tight work areas.
Yes! The front panel features an analog voltmeter and ammeter for real-time monitoring of output voltage and current. This allows technicians to verify proper electrical delivery and quickly identify any fluctuations.
The unit's output cable features a standard NATO-style single-pin connector, which is widely used in aviation ground support equipment. This makes it compatible with most aircraft requiring a 28V DC GPU connection.
Yes! The GPU is designed to deliver clean, regulated DC power with minimal ripple and voltage fluctuation, helping protect sensitive avionics and onboard electronics during testing or software updates. Built-in filters and voltage control circuitry ensure consistent power quality.
