Switching power supply

Switching inverter 400 W - SJ-400-2k3_DT

ProductInput voltage (DC)Output power
SJ-400-2k3_DT_110V80-140 V DC400 W/450 VAOrder
SJ-400-2k3_DT_48V40-70 V DC400 W/450 VAOrder
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Product demand

Switching inverter SJ-400-2k3 is designed to power electronic devices 230V AC in an environment without the danger of explosion. Inverter is resistant to short circuit on the output and can operate without load. Input is designed for power from 48V (110V) batteries.Inverter is designed as module for development. On the right side panel is located input terminal block, on the left side panel is EURO 230V AC outlet. Invertor input is galvanically isolated from output. 

Electrical parameters

  • Output voltage 230VAC 50Hz (sine wave)
  • Output power 400W/450VA
  • Overvoltage/undervoltage protection, output short circuit protection
  • Power without load 10W max.
  • Efficiency min. 87%

Environmental and operating conditions

  • Operating temperature range -5 to 45ºC
  • Humidity (non-condensed) 10...90% relative humidity
  • Altitude max. 2000m above sea level
  • Enviroment: without the danger of explosion
  • Enclosure IP10
  • Weight 2kg
  • Dimensional 265x122x70mm (WxHxD)


  • EN 60950-1 ed.2
  • EN 61000-6-1 ed.2
  • EN 61000-6-3 ed.2