DIN Rail, Enclosed and PCB-Mount switching power supplies for industrial control systems, electrical panels, machines and automation equipment.
DAPPRA Industrial Power Supplies are developed for industrial control systems, electrical panels, machines, and industrial automation equipment.
The DAPPRA power supply portfolio is organized into three major product types — DIN Rail, Enclosed and PCB-Mount — covering a wide range of power ratings, output configurations and input voltage requirements.
Twelve product series cover economical slim DIN rail designs, Class II step-shape isolation, ultra-wide AC input, miniature PCB-mount modules, high-efficiency PFC power supplies, quad-output enclosed units, low-profile enclosed switching power supplies and rain-splash protected enclosed power supplies.
DIN Rail power supplies are designed for standard TS35/7.5 or TS35/15 rail mounting inside electrical panels, control cabinets and automation equipment.
Seven series covering economical slim designs, Class II step-shape isolation, ultra-wide AC input, high-efficiency PFC units and high peak-load capability.
Designed as an economical slim metal-housing DIN rail power supply for industrial control, factory automation and electromechanical applications.
Note: EDR-75 and EDR-120 are 32 mm and 40 mm wide respectively.
Designed as an economical slim DIN rail power supply with built-in active PFC for industrial automation and control systems.
Note: Suitable for standard TS35 DIN rail mounting. NDR-120 measures 40 × 125 × 114 mm with a metal housing.
Designed as the first-generation plastic-housing step-shape DIN rail power supply, widely used in building automation and household control systems due to its Class II isolation level.
Note: Class II double insulation applies to DR-15 / DR-30 / DR-60 / DR-100 only. DR-120 and higher models are not Class II rated.
Designed as an ultra-slim plastic-housing DIN rail power supply for space-constrained industrial control and automation applications.
Note: MDR-40 measures 100 × 40 × 90 mm. DC OK relay contact is available on MDR-40 / 60 / 100 only; MDR-10 / 20 do not include it.
Designed for industrial power systems requiring ultra-wide AC input and high PFC capability, supporting single-phase and two-phase mains networks.
Note: WDR-120 measures 146 × 62 × 144 mm with a metal housing, input 180–550 VAC. WDR-60 is only 32 mm wide. UL508 approved.
Designed as the next-generation ultra-slim Class II step-shape DIN rail power supply, succeeding the DR series with smaller size, higher efficiency and lower no-load consumption.
Note: All HDR models are Class II rated and LPS certified, compliant with EN61000-3-2 Class A. HDR-15 is 17.5 mm wide; all models share a uniform 90 mm height in line with DIN EN43880. Approvals: UL508 / UL60950-1 / TUV EN61558-2-16 / CB / CE.
Designed for industrial control and automation systems requiring high efficiency, high peak load capability and PFC function.
Note: SDR-120 is 40 mm wide. SDR-480P supports optional current sharing (7+1). SDR-960 offers 130% peak load capability with 94% efficiency in a 110 mm slim design. Approvals: UL508, EN61000-6-2 industrial immunity level.
DIN Rail series differ mainly in power rating, housing width, isolation class and PFC configuration. All models are designed for standard TS35/7.5 or TS35/15 DIN rail mounting.
PCB-Mount power modules are miniature encapsulated AC-DC power supplies designed to be soldered directly onto the PCB boards of electronic instruments and industrial automation equipment.
Miniature encapsulated AC-DC power module covering 1W to 90W, with universal 85–305 VAC input, Class II isolation, built-in EMI filtering and BS EN/EN55032 Class B compliance without additional components.
Designed as a miniature encapsulated module-type AC-DC power supply, solderable onto PCBs of electronic instruments and industrial automation equipment.
Note: IRM-45 is a 45 W miniature module measuring 87 × 52 × 29.5 mm with up to 90.5% efficiency. IRM-10 measures 45.7 × 25.4 × 21.5 mm. SMD style models available on IRM-02 and IRM-03 (S suffix). Screw-terminal style models available on IRM-30 / 45 / 60 / 90 (ST suffix).
PCB-Mount power modules differ from DIN Rail and Enclosed power supplies in their mounting method: they are soldered directly onto PCB boards and do not require DIN rail or chassis mounting.
Enclosed power supplies use a fully enclosed chassis design for standalone installation or direct mounting inside machines, equipment and control systems. The ERPF Series adds a rain-splash protected, semi-potted aluminum enclosure for outdoor LED and display applications.
Four series covering conventional chassis-mount switching power supplies, low-profile enclosed designs, multi-output enclosed units and rain-splash protected LED power supplies.
Designed as a low-cost, highly reliable multi-output enclosed switching power supply for industrial equipment requiring multiple DC voltage rails from a single unit.
Note: Q-120B output: 5V/11A, 12V/4A, -5V/1A, -12V/1A. Replaced by RQ-125B. Q-250 is a 250 W quad-output unit with selectable AC input, fixed switching frequency at 75 kHz.
Designed as a low-profile, cost-effective single-output enclosed power supply for industrial control, communication equipment, LED lighting and security systems.
Note: LRS-75 is a 75 W single-output enclosed unit with 30 mm low-profile design and 85–264 VAC full-range input. LRS-1200 is a 1200 W compact unit, 49% smaller than SE-1000, with up to 94% efficiency and 150% peak power. Operating altitude up to 5000 m; 3 years warranty.
Designed as a conventional enclosed switching power supply for general industrial and commercial applications requiring a single fixed DC output.
Note: S-60-12 is 60 W, 12V/5A. S-210-5 is 200 W, 5V/40A. Fixed switching frequency at 56 kHz; chassis mounting; 2 years warranty. The NES / SE Series serve as replacement products.
Designed as a 400W single-output enclosed AC/DC power supply with active PFC, aluminum case and semi-potted interior for rain-splash and dust protection. Suitable for outdoor LED strip lighting, LED channel letters, billboards and commercial displays.
Note: ERPF-400-12: 12V/30A (360W); ERPF-400-24: 24V/16.7A (400.8W); ERPF-400-48: 48V/8.3A (398.4W). Dimensions: 220.4 × 130 × 48 mm. Must be installed upright; keep 10 cm clearance on four sides and 5 cm from ventilation holes. Approvals: UL60950-1, IEC/BS EN/EN62368-1, GB 4943.1, EAC TP TC 004, IS13252(Part1) for 12/24V models.
Enclosed series differ mainly in output configuration, mounting style and power rating. All models use fully enclosed chassis design for standalone installation.
DIN Rail power supplies are designed for standard TS35 DIN rail mounting inside electrical panels and control cabinets. Enclosed power supplies use a fully enclosed chassis design for standalone installation or equipment mounting. PCB-Mount power supplies are miniature encapsulated modules designed to be soldered directly onto the PCB boards of electronic instruments and industrial automation equipment.
The DR Series (DR-15/30/60/100), the HDR Series and the entire IRM Series feature Class II double insulation, so no grounding connection is required.
The WDR Series supports an ultra-wide AC input of 180–550 VAC, suitable for single-phase and two-phase mains networks.
The IRM Series is a miniature encapsulated AC-DC module power supply designed for PCB mounting in electronic instruments and industrial automation equipment. It covers 1W to 90W with 3.3V to 48V output and Class II isolation.
The SDR Series and LRS Series achieve efficiency up to 94%, with the SDR Series also providing 150% peak load capability.
The Q Series provides quad output with multiple DC voltage rails such as 5V, 12V, 15V, 24V, -5V, -12V and -15V depending on the model.
Selection should consider installation method (DIN rail, enclosed or PCB-mount), output power, output voltage and current, input voltage range, efficiency, protection features, PFC requirement and application environment.
