The MEAN WELL RSDH-150-24 is an enclosed DC/DC converter with a 250–1500 VDC input and a 24 V, 6.2 A output rated at 150 W. Its fanless, half-encapsulated construction provides reinforced 4 kVAC input-to-output isolation in a 41 mm-high enclosure. Output voltage is adjustable over 24–29 V. Select the load using the input-voltage, ambient-temperature and altitude curves, and fit the required external 4 A / 1500 VDC input fuse.
Product Datasheet
Download MEAN WELL RSDH-150 Datasheet (PDF)
The RSDH-150 section is on PDF pages 40, 41, 42, 43. Refer to the complete mechanical drawings and notes when planning installation.
Model and Output Ratings
| Full model |
RSDH-150-24 |
| Series |
RSDH-150 |
| DC output voltage |
24 V |
| Rated output current |
6.2 A |
| Rated output power |
150 W |
| Output current range |
0–6.2 A |
| Output voltage adjustment range |
24–29 V |
| Maximum ripple and noise |
240 mVp-p |
| Voltage tolerance |
±1.0% |
| Line regulation |
±0.5% |
| Load regulation |
±1.5% |
| Maximum external capacitive load |
2500 µF |
The final model suffix identifies the nominal output voltage. Use the +ADJ control to set the output within the specified range, while keeping the current, power and environmental limits.
Suitable applications include photovoltaic and renewable-energy equipment, high-voltage frequency conversion, industrial control, semiconductor fabrication, electromechanical equipment, centralized DC buses, energy storage and charging infrastructure. Third-rail use is listed as an application; system-level installation and qualification remain application-specific.
DC Input and Efficiency
| Continuous DC input range |
250–1500 VDC |
| Input range ratio |
6:1 |
| Surge input withstand |
1700 VDC for 10 seconds |
| Typical efficiency at 300 VDC |
88% |
| Typical efficiency at 800 VDC |
90% |
| Typical efficiency at 1500 VDC |
86% |
| Maximum cold-start inrush current |
300 A at 1500 VDC; 200 A at 800 VDC; 70 A at 250 VDC |
| Required external input fuse |
4 A / 1500 VDC |
| Normal measurement conditions |
800 VDC input, rated load and 25°C ambient |
| Nominal switching frequency |
65 kHz |
The 1700 VDC statement is a 10-second surge-withstand condition, not an extension of the continuous input range. Input-dependent load limits also apply within the 250–1500 VDC operating range.
Ripple and noise are measured at 20 MHz bandwidth using a 12-inch twisted pair terminated with parallel 0.1 µF and 47 µF capacitors. Voltage tolerance includes set-up tolerance, line regulation and load regulation.
Protection and Recovery
| Protection functions |
Short circuit, overload, overvoltage, overtemperature, DC input undervoltage and reverse polarity |
| Overload threshold |
105–135% of rated output power |
| Overload with output below 55% of rated voltage |
Hiccup mode; automatic recovery after the fault is removed |
| Overload with output at 55–100% of rated voltage |
Constant-current limiting; automatic recovery after the fault is removed |
| Output overvoltage threshold |
33–42 V |
| Overvoltage recovery |
Hiccup mode; automatic recovery after the fault is removed |
| Overtemperature recovery |
Hiccup mode; automatic recovery after the fault is removed |
| Input reverse-polarity protection |
Internal bridge diode; no damage, with automatic recovery after the fault is removed |
| Input undervoltage protection range |
200–225 VDC |
| Input undervoltage release range |
225–246.5 VDC |
Undervoltage protection and release thresholds describe the protective response. They do not lower the 250 VDC minimum continuous operating input or remove the input-voltage derating requirement.
Correct the fault before returning to normal service. Use the external input fuse specified for this converter in addition to its internal electronic protection.
Cooling and Ambient-Temperature Derating
| Construction and cooling |
Half encapsulated; fanless free-air convection |
| Published curve orientation |
Vertical |
| Working ambient range |
−40 to +80°C, subject to derating |
| Load at −40°C |
50% |
| Full-load ambient interval |
0–55°C |
| Load at 70°C |
55% |
| Load at 75°C |
40% |
| Load at 80°C |
30% |
Follow the plotted transition from 50% load at −40°C to 100% at 0°C. Above 55°C, reduce the load along the thermal curve through the stated 70°C, 75°C and 80°C points. The maximum ambient temperature does not permit full rated output.
Install the unit in the orientation used by the curves and maintain free convection around the enclosure. Leave access and clearance for power wiring, the fuse holder and the adjustment control.
Input-Voltage and Altitude Derating
| Load at 250 VDC |
40% |
| Load at 300 VDC |
80% |
| Full-load input interval |
320–1400 VDC |
| Load at 1500 VDC |
80% |
| Maximum operating altitude |
5000 m |
| Altitude load factor through 2000 m |
100% |
| Altitude load factor at 5000 m |
60% |
| Altitude temperature adjustment |
Above 2000 m, reduce permissible ambient temperature by 3.5°C per additional 1000 m |
| Overvoltage category condition |
OVC II at 2000 m, according to EN 62109-1 |
Use the rising input curve from 250 to 320 VDC and the falling curve from 1400 to 1500 VDC; full output is available only where the other operating limits also allow it.
Above 2000 m, the altitude curve decreases from 100% to 60% at 5000 m. Multiply this altitude factor by the regular power-limit factor. Apply the ambient-temperature adjustment as well; the altitude rating and OVC II reference describe different conditions.
Terminal Assignment and Installation
| Input pin 1 (TB1) |
DC input +Vin |
| Input pin 2 (TB1) |
DC input +Vin |
| Input pin 3 (TB2) |
DC input −Vin |
| Input pin 4 (TB2) |
DC input −Vin |
| Output pin 1 |
DC output +Vo |
| Output pin 2 |
DC output −Vo |
| Output pin 3 |
FG / protective earth |
| Output adjustment control |
+ADJ |
| Case reference |
203B |
| Catalogue dimensions, L × W × H |
191 × 86 × 41 mm |
| Enclosure height |
41 mm / 1U low profile |
| Drawing tolerance |
±1 mm |
| Mounting references |
183 mm longitudinal and 72 mm transverse references; 4 × R2.1 mounting-slot callouts. The side view also shows 2 × R2.1 slots and a 28 mm height reference. |
Use the numbered terminal assignments for this model. Connect the marked FG terminal to the installation protective-earth system. Keep the input and output circuits distinct and select conductors and terminations for the applicable voltage and current.
Place the required external fuse and holder in the positive DC input lead as shown in the wiring diagram. Follow the mechanical drawing for the mounting points; enclosure dimensions do not include external wiring and cable-bend clearance.
Required Fuse and Compatible Ordering Reference
| External fuse specification |
4 A / 1500 VDC |
| Suggested fuse manufacturer |
WalterFuse |
| Fuse manufacturer part number |
WJ30-4 |
| Fuse-holder manufacturer part number |
WJ30-H |
| MEAN WELL fuse-plus-holder ordering reference |
WJ30-4_WJ30-H |
| Accessory function |
External input fuse and holder for the positive DC input lead |
Select the listed fuse-and-holder combination, or confirm a suitable equivalent for the required DC voltage and current rating. Confirm the accessory supply separately when ordering the converter.
Environmental, Reliability and Mass Data
| Working humidity |
20–90% RH, non-condensing |
| Storage temperature and humidity |
−40 to +80°C; 10–95% RH, non-condensing |
| Temperature coefficient |
±0.03%/°C over 0–55°C |
| Component vibration |
10–500 Hz, 3 G; 10 minutes per cycle and 60 minutes on each X, Y and Z axis |
| Mounting-clip vibration reference |
IEC 60068-2-6 |
| Minimum MTBF, Telcordia SR-332 |
1924.7K hours |
| Minimum MTBF, MIL-HDBK-217F |
285.9K hours at 25°C |
| Unit mass, catalogue PACKING reference |
810 g |
| Catalogue packing |
0.81 kg; 12 units / 10.7 kg / 0.75 CUFT |
| Catalogue warranty |
3 years |
The mass is the explicit per-unit catalogue packing reference. It is not a measured installed mass or the gross shipping weight of an individual parcel.
Safety, Isolation and EMC
| Catalogue-listed safety approvals |
UL 1741; CSA C22.2 No.107.1-16; IEC 62109-1; BS EN / EN 62109-1; EAC TP TC 004 |
| Input-to-output withstand voltage |
4 kVAC; reinforced isolation |
| Input-to-FG withstand voltage |
3.75 kVAC |
| Output-to-FG withstand voltage |
2 kVAC |
| Input-to-output isolation resistance |
100 MΩ at 500 VDC, 25°C and 70% RH |
| Conducted emissions |
BS EN / EN 55032 (CISPR 32), Class A |
| Radiated emissions |
BS EN / EN 55032 (CISPR 32), Class A |
| Immunity standards |
BS EN / EN 55035; BS EN / EN 61000-6-2 |
| ESD, EN 61000-4-2 |
Level 3, 8 kV air; level 2, 4 kV contact; criterion A |
| Radiated susceptibility, EN 61000-4-3 |
Level 3; criterion A |
| EFT/burst, EN 61000-4-4 |
Level 3, 2 kV; criterion A |
| Surge, EN 61000-4-5 |
Level 4; 2 kV between +Vin and −Vin, 4 kV between input and FG |
| Conducted immunity, EN 61000-4-6 |
Level 3, 10 V; criterion A |
| Magnetic field, EN 61000-4-8 |
Level 4; criterion A |
The converter is a component intended for installation in final equipment. Reconfirm the complete equipment’s EMC compliance after integration. Component approvals and isolation ratings do not certify the complete system.
