DDRH-120/240 Series:120W & 240W Ultra-Wide 250~1500Vdc Input DIN Rail Type DC-DC Converter

By: Frank Chen / Product Manager

In recent years, the demand for renewable energy such as photovoltaics and energy storage has increased drastically. As a response, MEAN WELL launched the DDRH-60 and RSDH-150/300 (details in table below) subsequently. Now we are launching a new 120W/240W ultra-wide 250~1500Vdc high voltage input DIN rail DC-DC converter, the DDRH-120/240 series.
DDRH-120/240 series key features include: 250~1500Vdc ultra-wide input range, fanless design operational in -40~+80oC wide temperature range, 4KVac high isolation level, input/output complete protection features, superior EMC performance, high altitude 5000M operation, and compliance to the IEC/EN62109-1 PV safety. These features enable the DDRH-120/240 series to be suitable for PV, energy storage, charging station, and other applications that have high voltage to low voltage DC conversion requirement.

DC-DC Converter Selection Guide for PV, Energy Storage System (ESS) Applications



  • 250~1500Vdc ultra-wide input voltage
  • 4KVac I/O isolation
  • Free air convection, can operate between -40~+80oC
    (+50oC@full load without derating), suitable for various installation conditions
  • Fanless design, no noise
  • Excellent EMC performance, meet EN55032 Class A EMI performance without external components
  • Built-in potentiometer, can trim output (12~15V,24~29V,30~36V,48~58V)
  • Protections:
    Input – Under voltage protection, reverse polarity (No damage)
    Output – Short circuit, overload, over voltage, over temperature
  • Dimensions (WxHxD)
    DDRH-120 : 63 x 125.2 x 115mm
    DDRH-240 : 85.5 x 125.2 x 129.2mm
  • Approvals: CB/DEKRA (IEC/EN62109-1), EAC, CE, UKCA
  • 3 years warranty

DDRH-120 Series   DDRH-240 Series