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Model TC400A-28C

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 3500 (Nom. short circuit current)
5200 (Max. short circuit current)
Capacity 136 Amp Hrs @ 10hr rate
Run Time 95A for 1 hour, 55A for 2 hours, 39A
for 3 hours
Max voltage 30.3v DC
Size L780 W350 H300 mm
Weight 140-165 kg
Operating Temp -40°C – + 60°C
Case Zinc Coated Steel
Voltage Indication Digital to IP65
Auxiliary Protection Circuit breaker 40A
Aircraft Cable 3 m heavy duty table with aircraft connector
Charger 20A Electronic110/230v. Charging time less than 3 hours from 50%


Handlebar and Casters
Various Output Cable Lengths
Various Connectors

*Specification may change without notice

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