In this article, we will review:
Most automation systems use semiconductor components and require reliable DC power supplies. Mean Well is a reliable and well-known manufacturer of power supplies, offering a wide range of power supply units, including industrial switching power supplies. For over thirty years, Mean Well has been dedicated to the power supply industry, developing, manufacturing, and delivering standard power supply products. One of the main product groups is DIN rail-mounted switching power supplies. We highly appreciate the quality of these power supplies and use them in many of our projects.
One of the most popular series of Mean Well power supplies is the EDR series, which consists of compact power supplies with single-phase input voltage. These power supplies are certified for industrial controller system requirements, ensuring their resistance to disturbances, as well as overload, overvoltage, short circuit, and thermal protection.
| Power: | 75W - 150W |
| Current: | 1.6A - 10A |
| Voltage: | 12V, 24V, 48V |
| Width: | 32mm - 40mm |
| Input: | 90 ~ 264VAC, 127 ~ 370VDC |
| Overload: | 105 - 130% |
| Operating temp.: | -20 ~ +60℃ |
| Efficiency: | till 88.5% |
The MDR series power supplies are relatively narrow and have a plastic housing. One of the characteristics of the MDR series is its good price/performance ratio. These power supplies are general purpose. They have a single-phase full-range input, which allows them to operate efficiently at different voltages. MDR power supplies have a low no-load current consumption of less than 1 W, thus reducing energy waste. They are designed for easy mounting on DIN rails and some models offer a DC OK signal output or relay contacts for monitoring the status of the DC output. In addition, some models in the MDR series are certified for hazardous locations, ensuring safe operation in potentially explosive environments.
| Power: | 10W - 96W |
| Current: | 12V, 15V, 24V, 48V |
| Voltage: | 420mA - 10A |
| Width: | 22mm - 55mm |
| Input: | 85 ~ 264VAC, 120 ~ 370VDC |
| Overload: | 105 - 160% |
| Operating temp.: | -40 ~ +80℃ |
| Efficiency: | till 88% |
The HDR series is characterised by its low power consumption in off-load mode. Also, thanks to their compact design, the power supplies of this series can be fitted into small racks. This makes them ideal for home automation systems, various office equipment power supplies and alarm systems. The output voltage of the HDR models can be regulated within a range of approximately ±20 %.
| Power: | 15W - 155W |
| Current: | 320mA - 11.3A |
| Voltage: | 5V, 12V, 15V, 24V, 48V |
| Width: | 17.5mm - 105mm |
| Input: | 85 ~ 264VAC, 120 ~ 370VDC |
| Overload: | 105 - 160% |
| Operating temp.: | -30 ~ +70℃ |
| Efficiency: | till 91% |
The NDR series are compact DIN-rail mounted power supplies. This allows them to be used in small electrical cabinets. The NDR series power supplies have a wide input current range and high efficiency. Thanks to their robust metal housing, they are ideally suited for many industrial automation control systems. The power supplies of this series also have adjustable output voltage and a built-in protection function.
| Power: | 75W - 480W |
| Current: | 12V, 24V, 48V |
| Voltage: | 1.6A - 20A |
| Width: | 40mm - 125mm |
| Input: |
90 ~ 264VAC, 127 ~ 370VDC |
| Overload: | 105 - 130% |
| Operating temp.: | -20 ~ +70℃ |
| Efficienty: | till 92.5% |
The SDR series includes power supplies up to 960W. Also, some power supplies in this series can be connected to share the load, increasing the power up to 3.8kW. The SDR power supplies feature a metal enclosure as well as high efficiency and built-in PFC (active power factor) correction. It is worth noting that these power supplies have an OK relay contact for remote monitoring.
| Power: | 75W - 960W |
| Current: | 12V, 24V, 48V |
| Voltage: | 1.6A - 40A |
| Width: | 32mm - 110mm |
| Input: | 88 ~ 264VAC, 124 ~ 370VDC |
| Overload: | 105 - 150% |
| Operating temp.: | -30 ~ +70℃ |
| Efficienty: | till 94% |
WDR power supplies are one of the few that can provide 5V DC (specific models). They use 1- or 2-phase AC voltages (up to 550 V). The WDR series power supplies have very high efficiency and a built-in PFC function. The power supplies of this series also have an OK relay contact, which allows the power supply to be remotely contorted. They also have protection against short circuit, overload, overvoltage as well as overheating.
| Power: | 50W - 480W |
| Current: | 5V, 12V, 24V, 48V |
| Voltage: | 1.25A - 20A |
| Width: | 32mm - 85.5mm |
| Input: | 180 ~ 550VAC, 254 ~ 780VDC |
| Overload: | 105 - 135% |
| Operating temp.: | -40 ~ +85℃ |
| Efficienty: | till 93% |
The TDR series includes powerful industrial 3-phase power supplies up to 960W. They are DIN rail mountable like the other power supplies in the series. TDR power supplies are equipped with PFC function and OK relay contact. Like the SDR series, these power supplies can be connected to share the load and increase the total power up to 3840W. They feature passive quenching and relatively high efficiency.
| Power: | 240W - 960W |
| Current: | 5A - 40A |
| Voltage: | 24V, 48V |
| Width: | 63mm - 110mm |
| Input: | 340 ~ 550VAC |
| Overload: | 105 - 130% |
| Operating temp.: | -30 ~ +70℃ |
| Efficienty: | till 94.5% |
