At a glance
- Output Channels
- CH1 +5 V 8 A
- Rated Output Power
- 88 W
- Input Voltage Range
- 88 to 264 V AC, 125 to 373 V DC
- Dimensions
- 159 x 97 x 38 mm (L x W x H)
- Efficiency (typ.)
- 80%
- Operating Temperature
- -25 to +70 °C
MEAN WELL RD-85B Multiple Output Power Supply, +5 V / +24 V, 88 W
Price on request
At a glance
- Output Channels
- CH1 +5 V 8 A
- Rated Output Power
- 88 W
- Input Voltage Range
- 88 to 264 V AC, 125 to 373 V DC
- Dimensions
- 159 x 97 x 38 mm (L x W x H)
- Efficiency (typ.)
- 80%
- Operating Temperature
- -25 to +70 °C
An enclosed supply that gives two DC rails from one unit, for control panels and equipment needing a logic rail alongside a second voltage. Multiple output power supply, +5 V / +24 V, 88 W. Universal AC input, full range.
Part of the MEAN WELL RD-85 series. Compare both models
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
What it is
The MEAN WELL RD-85B is a multiple output power supply from the RD-85 series (85 W Dual Output Switching Power Supply), rated +5 V / +24 V, 88 W.
What it is used for
An enclosed dual output supply that provides two DC rails from one unit, for control panels and equipment that need, for example, a 5 V logic rail alongside a 12 V or 24 V rail.
Key features
- Universal AC input, full range.
- Protection against short circuit, overload and over voltage.
- Cooling by free air convection, LED indicator for power on.
- 105 °C long life electrolytic capacitors.
- Withstands 300 V AC surge input for 5 seconds.
- Operating temperature up to 70 °C, withstands 5G vibration.
Key Specifications
- Output Channels: CH1 +5 V 8 A; CH2 +24 V 2 A.
- Rated Output Power: 88 W.
- Input Voltage Range: 88 to 264 V AC, 125 to 373 V DC.
- Dimensions: 159 x 97 x 38 mm (L x W x H).
Buying considerations
Size the unit with headroom above the connected load and check the derating information in the datasheet for high ambient temperature or low input voltage. Other models in the same series are listed on this page.
Installation considerations
MEAN WELL treats this unit as a component of the final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring and safety details are in the official datasheet linked below.
Features

Size and fit
- Dimensions
- 159 x 97 x 38 mm (L x W x H)
- Weight
- 0.6 kg
Technical specifications
Key facts
- What is it?
- Multiple output power supplyBrand MEAN WELL, model RD-85B
- What does it output?
- 88 W
- What input does it accept?
- 88 to 264 V AC, 125 to 373 V DC
- Which documents are available?
- Datasheet, certificate (2) Open documents
RelatedSeriesMEAN WELL RD-85 series, 2 modelsDocumentsAll MEAN WELL documents
Output
- Output Channels
- CH1 +5 V 8 A; CH2 +24 V 2 A
- Output Current Range
- CH1 0 to 10 A; CH2 0 to 2.5 A
- Rated Output Power
- 88 W
- Ripple and Noise (max.)
- CH1 80 mVp-p; CH2 120 mVp-p
- Output Voltage Tolerance
- CH1 ±2.0%; CH2 ±5.0%
- Efficiency (typ.)
- 80%
- Output Voltage Adjustment Range
- CH1: 4.75 to 5.5 V
Input
- Input Voltage Range
- 88 to 264 V AC, 125 to 373 V DC
- Input Frequency Range
- 47 to 63 Hz
Protection
- Withstand Voltage
- I/P-O/P: 3 kV AC, I/P-FG: 2 kV AC, O/P-FG: 0.5 kV AC
Environment
- Operating Temperature
- -25 to +70 °C (refer to derating curve)
- Operating Humidity
- 20 to 90% RH non-condensing
- Cooling
- Free air convection
Physical
- Dimensions
- 159 x 97 x 38 mm (L x W x H)
- Weight
- 0.6 kg
Approvals
- MTBF
- 537.9 K hours min. (MIL-HDBK-217F, 25 °C)
Other
- Series
- RD-85
- Warranty
- Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
| Brand | MEAN WELL |
|---|---|
| Power Output | 88 W |
Downloads
Documentation
- RD-85 series datasheetDatasheet · Family · meanwell.comDownload
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
What input voltage does the RD-85B accept?
MEAN WELL lists 88 to 264 V AC, 125 to 373 V DC for this model.
Ask about this modelSetup, compatibility, what is in the box
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