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Model TC400A-28T

No Fuel, No Pollution, and No Noise

The TC400/28 range is designed to give silent, clean power. These 28V DC power supplies can offer both continuous power for a set time, and start power. With a built in ‘flashing’ light, the units will tell you when it is time to charge them. They also come with a built in voltmeter and an external charger that allows you to leave them on charge when not in use, ensuring they are always ready for operation. The TC400/28 range is designed specifically for when mains power is not readily available. They are maintenance free, with no moving parts, which make these units an extremely cost effective and environmentally friendly option.

The RBSC and RBPS range are specifically designed and built by Red Box to provide the cleanest possible DC power unit. The products range from 25 amps up to 600 amps, higher power units are available on request. The units are able to switch between two voltages, set at 14V and 28V as standard, but you may have this set at different voltages on request.


  • Direct connection to aircraft or land vehicle.
  • Rugged steel case.
  • Fan cooled.
  • User switchable between 14V and 28V.


  • Overload.
  • Over Voltage.
  • Over Current.
  • Short Circuit


  • EN60950-1: 2006
  • Emission – EN55022-B


Max amps 7000 (Nom. short circuit current)
10400 (Max. short circuit current)
Capacity 272 Amp Hrs @ 10hr rate
Run Time 190A for 1 hour, 110A for 2 hours, 78A
for 3 hours
Max voltage 30.3v DC
Size mm L2000 W1080 H1500 mm
Weight 400 kg
Operating Temp -40°C – + 60°C
Case Zinc Coated Steel
Voltage Indication Digital to IP65
Auxiliary Protection Circuit breaker 40A
Output Cable 3 m heavy duty table with aircraft connector
Charger 25A Electronic110/230v. Charging time less than 4 hours from 50% (larger chargers available)



Cable Horns
Longer Output Cables

*Specification may change without notice

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