Ming Wei single-phase 380V power input rails DRH-120-24 120W 24V5A

Ming Wei single-phase 380V power input rails DRH-120-24 120W 24V5A

Product description:

Product parameters:

  • Brand: MW / Meanwell
  • Model: DRH-120-24
  • Modulation: Pulse width modulation
  • Connection: Full Bridge
  • Function: Power transformer

■ Product Description

Universal single-phase input DIN rail mounted power supply, quick installation effort, suitable for installation on DIN rail TS35 / 7.5 or 15. Press the stringent industry standard design for a variety of industrial automation and home automation applications.

■ Main features
Input single-phase 340 ~ 550VAC
Mounted on DIN rail TS35 / 7.5 or 15
Short circuit protection / overload / over voltage protection /Overheating protection
International Security Certification UL / CUL / TUV / CB / CE
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LED indicate working status
Built-in constant current limiting circuit
EN61000-6-2 (EN50082-2) industrial immunity
Switching frequency 70KHz
Natural draft cooling
100% full load burn-in test
Lead-free manufacturing process, in line with the requirements of environmental protection RoHS
Taiwan Ming Wei brand, Taiwan factory
3 year warranty
■ The main parameters
DC output range 24V, 0 ~ 5A
Output voltage accuracy ±1%
Ripple 80mV
effectiveness 85%
Input voltage range Single-phase 340 ~ 550VAC / or 480 ~ 780VDC
Input surge current Cold Start 45A / 230V
Voltage adjustment range 24V: 24 ~ 28V, 48V: 48 ~ 55V
Overload Constant current limiting overcurrent automatic recovery point when 105% ~ 160%
Overvoltage protection 24V: 30 ~ 36V; 48V: 59 ~ 66V, reset to restart
Overheating protection 85 ℃ ± 5 ℃ (TSW detect power transistor heat sink temperature), the type of protection: thermal shutdown, automatic recovery after the temperature dropped
Start Rise Hold Time 230VAC at full load 1700ms, 120ms, 16ms
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Insulating properties Between the input and output side: between 1.5KVac, output terminal and housing:: 3KVac, between the input terminal and housing 0.5KVac, 1 Fenzhong
Operating temperature -20 ~ + 60 ℃ (refer to output derating curve)
Vibration resistance 10 ~ 500Hz, 2G 10 min / cycle, XYZ axes each 60 minutes, and installed in accordance with IEC60068-2-6
Safety certification By UL60950-1, ICE60950-1,CB Authenticate
Electromagnetic Compatibility Emission: EN55022 (CISPR22), EN55011 (CISPR11), EN61204-3 class B Harmonics: EN61000-3-2, -3
Electromagnetic Compatibility Interference: EN61000-4-2,3,4,5,6,8,11, ENV50204, ENV55024, EN61000-6-2 (EN50082-2),A heavy grade standards
MTBF ≥17.87 ten thousand hours, MIL-HDBK-217F (25 ℃)
Wiring Inputs: 3:00 output terminal: 4:00 DIN screw terminals
Chassis number 921A
Dimensions 65.5 × 125.2 × 100mm (width × height × depth)
Weight and packaging 0.75 kg / only; carton 20 /16.0 kg, 0.0365 m3

Installation Guide

Shell-type switching power supply

Shell type power supply includes metal and plastic models, the internal PCB board by the housing parcels, usually installed in the system cabinet Meanwell power supply according to the rated power supply design and is divided into two different types: one is built cooling fan, the other is not a fan of the band.


1. Before installation or maintenance work, disconnect the power supply and application system to ensure that does not automatically reconnect without notice!
2. Please install the screw and internal components of the power supply to maintain adequate safe distance. Refer to Figure Catalog Manual shell on the most appropriate mounting screws. [Have fun with buying power Meanwell], have questions, please call 4006000430.
3. Non-standard mounting direction or at high ambient temperature of the power supply will cause the temperature inside the device increases should derating use, install according to the specifications optimal mounting direction, and the temperature - the power to determine the best load curve good workload.
4. Fans and vents can not stop something, if there are other heat sources near, you should at least kept their distance 10-15cm
5. It follows the recommended wire size Wiring
AWG 18 16 14 12 10 8
Rated Current (A) 6A 6-10A 10-16A 16-25A 25-32A 32-40A
Wire cross-sectional area (mm square) 0.75 1.00 1.5 2.5 4 6
Note: the maximum surge current is only available for 1-4 wire, 5-pin inrush current can not exceed more than 80% of the rated current
Ensure that all core wires in the terminal block and tighten the terminal screws to prevent poor contact.
6. Additional information about the product please refer to this website

Warning !!

1. To prevent the risk of electric shock and burns, all the power is faulty by a qualified electrician engineer checking the unauthorized removal of the power supply housing.
2. Power can not be installed in a humid environment and near water.
3. Power can not be exposed to high temperatures and near fire place, please refer to the specification to determine the maximum ambient temperature of the power supply applications.
4. Output voltage and output current can not exceed the specifications required by the rating range.
5. Ground (FG) must be connected to the earth. [Buy Power hereby fun with Meanwell], have questions, please call 4006000430.
6. All Meanwell power supplies are EMC-compliant design, upon request we can provide power test i report because the power just is a component application system when power is integrated into the application, the final system EMC also need to be tested again to confirm