DRS-480 is a multifunctional power supply with a high–power UPS from MEAN WELL


In a number of applications, the power supply system must also implement additional functions, for example, ensuring uninterrupted power supply to the load or monitoring the status of the input and/or output circuits. In this case, you have to use other devices and modules that can meet these requirements. Therefore, devices that allow you to combine additional functionality, for example, power supplies with the UPS function, are in particular demand. Especially in this series, it is worth noting the multifunctional power supply of the DRS series from MEAN WELL.

Внешний вид блоков питания серии DRS-480Appearance of DRS-480 series power supplies

The DRS-480 series power supply is an AC/DC converter with a DIN rail, class "multifunctional device" (All-In-One) – power supply, charger, DC UPS uninterruptible power supply, circuit status monitor and battery (battery). The output voltage is optimized for use with rechargeable batteries – 24, 36, 48V, rated power of power supplies in the 480W series. Schematically, a multifunctional device can be represented by the type of conversion and possible connections:

Функционал блока питания DRS-480The functionality of the DRS-480 power supply unit

The DRS-480 series power supplies have a built-in Power Factor Corrector (PFC), a built-in MODBus data transfer protocol, all basic types of protection, including protection against reverse polarity when connecting a battery and protection against deep battery discharge. When used as a charger, the DRS-480 power supply has the ability to select the type of charging curve (2 or 3 charging stages), and it is also possible to connect the SBP-001 charger programmer to adjust the charge parameters. The preset values of the charging curve are optimized for the main types of batteries – lead-acid, including gel and AGM, as well as lithium-ion. The high level of the maximum charge current, as well as the possibility of its adjustment within wide limits (from 20 to 100%), allows the use of batteries of various capacities – from 10 to 200 AH, depending on the DRS-480 model.

Предустановленные настройки заряда в DRS-480Preset charge settings in DRS-480

The main technical parameters of the most popular models of power supplies from the DRS-480 series

Characteristic DRS-480-24DRS-480-48
ExitOutput voltage24B48V
Output current0...20A0...10A
Maximum battery charge current15.4A7.7A
Adjusting the battery charge current20%...100% built-in potentiometer
EntranceInput voltage90...305V (AC) / 127...431V (DC)
Power correction factor0.95 (230V AC) /0.98 (115V AC) at full load

DRS-480 series power supplies can be used in security systems, emergency lighting, loudspeaker warning, uninterruptible power supply systems, monitoring systems, industrial automation and other applications.

Пример использования DRS-480 в составе системы пожарного оповещенияAn example of using DRS-480 as part of a fire alarm system

Main technical characteristics and features of DRS-480 series power supplies

  • Extended input voltage range: 90...305V (AC), 127...431V (DC).
  • The rated output power (total across all channels) should not exceed: 480W.
  • Output voltage from the standard range: 24, 36, 48V DC.
  • Built-in Power Factor Corrector.
  • Multifunctional device: power supply, charger, DC UPS, input and output circuit status monitor, batteries.
  • Built-in data transfer protocol: MODBus.
  • Protection: against short circuit, overload, overvoltage, overheating, reverse polarity when connecting the battery, deep discharge of the battery.
  • Types of batteries used: lead-acid, lithium-ion.
  • Extended operating temperature range: from -30°C to +70°C.
  • Cooling due to natural ventilation.
  • The warranty period is 3 years.

For more detailed technical specifications, see the Specifications for DRS-480 series power supplies, and for questions related to the selection and use of MEAN WELL products, please contact us by e-mail Meanwell@chipdip.ru .