Over 15 years experience of providing support of MEAN WELL Power Supplies
Image shown is a representation only. Exact specifications should be obtained from the product datasheet.
Mean Well RD-65B Power Supply 65W 5V 24V 4A
Overview
RD-65B is the model of this series: rated power 68W, typical efficiency 77%.
Features
- Universal AC input / Full range
- Protections: Short circuit / Overload / Over voltage
- Cooling by free air convection
- LED indicator for power on
- 100% full load burn-in test
- All using 105℃ long life electrolytic capacitors
- Withstand 300VAC surge input for 5 second
- High operating temperature up to 70℃
- Withstand 5G vibration test
- High efficiency, long life and high reliability
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE CH1
- 5V
- DC VOLTAGE CH2
- 24V
- RATED CURRENT CH1
- 4A
- RATED CURRENT CH2
- 2A
- CURRENT RANGE CH1Note.6
- 0 ~ 8A
- CURRENT RANGE CH2Note.6
- 0 ~ 3A
- RATED POWERNote.6
- 68W
- RIPPLE & NOISE (max.) CH1Note.2
- 80mVp-p
- RIPPLE & NOISE (max.) CH2Note.2
- 150mVp-p
- VOLTAGE ADJ. RANGE
- CH1: 4.75 ~ 5.5V
- VOLTAGE TOLERANCE CH1Note.3
- ±2.0%
- VOLTAGE TOLERANCE CH2Note.3
- +4,-8%
- LINE REGULATION CH1Note.4
- ±0.5%
- LINE REGULATION CH2Note.4
- ±2.0%
- LOAD REGULATION CH1Note.5
- ±0.5%
- LOAD REGULATION CH2Note.5
- ±6.0%
- SETUP, RISE TIME
- 500ms, 20ms/230VAC 1200ms, 30ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 60ms/230VAC 14ms/115VAC at full load
INPUT
- VOLTAGE RANGE
- 88 ~ 264VAC 125 ~ 373VDC (Withstand 300VAC surge for 5sec. Without damage)
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY(Typ.)
- 77%
- AC CURRENT (Typ.)
- 2A/115VAC 1.2A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 50A/230VAC
- LEAKAGE CURRENT
- <2mA / 240VAC
PROTECTION
- OVERLOAD
- 110 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- CH1: 5.75 ~ 6.75V Protection type : Hiccup mode, recovers automatically after fault condition is removed
ENVIRONMENT
- WORKING TEMP.
- -25 ~ +70℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)on +5V output
- VIBRATION
- 10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004, BIS IS13252(Part1): 2010/IEC 60950-1:2005 approved
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61000-6-2 (BS EN/EN50082-2), heavy industry level, EAC TP TC 020
OTHERS
- MTBF
- 2940.2K hrs min. Telcordia SR-332 (Bellcore) ; 541.0K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 129*98*38mm (L*W*H)
- PACKING
- 0.44Kg; 30pcs/14.2Kg/0.72CUFT
Test conditions and notes8
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
- 3. Tolerance : includes set up tolerance, line regulation and load regulation, when multi-channel output, it is recommended that CH1 load > 10%.
- 4. Line regulation is measured from low line to high line at rated load.
- 5. Load regulation is measured from 20% to 100% rated load, and other output at 60% rated load.
- 6. Each output can work within current range. But total output power can't exceed rated output power.
- 7. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
- 8. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
Technical drawings
Downloads
FAQ
Can I use the RD-65B in an automation panel that needs 5V control power and 24V support power?
Yes, this is a dual output constant voltage supply with 5V and 24V outputs and a total rating of 68W. The 5V output is rated at 4A, so it suits systems with lighter 5V logic demand while still providing a second DC rail. It is a better fit for mixed-voltage control assemblies than for heavy 5V-only loads.
Is the RD-65B appropriate for networked industrial electronics or gateway devices with modest 5V current draw?
It can be appropriate when the 5V load stays within 4A and total output demand stays within 68W. Compared with 5V 6A and 5V 8A siblings, this version is better for lower-current 5V electronics. Its 88-264VAC input range also supports use in equipment deployed across different AC supply standards.
Can the RD-65B be used in compact machine or cabinet builds?
Yes, the housing size is 129.0 x 98.0 x 38.0 mm and the unit weighs 0.44 kg, which keeps it relatively compact for cabinet integration. The constant voltage design and dual output format make it suitable for enclosed industrial or embedded assemblies that need two DC rails. Its 68W rating places it above the 50W-class versions in available output power.
Is the RD-65B suitable for exposed outdoor environments?
It is rated to operate from -25C to +70C, so the temperature range is broad. However, no IP rating is listed in the provided specifications, so it should be considered suitable for protected indoor enclosures rather than exposed outdoor environments. For environmental selection, the absence of an IP rating matters as much as the temperature range.
How does the RD-65B compare with nearby RD series options?
The RD-65B is a 68W dual output model with 5V 4A and 24V 2A outputs. Other RD series models vary in power and voltage combinations, such as the RD-65A (66W, 5V 6A / 12V 3A) or RD-125 series (125W). Specific ratings for other models should be verified against their individual datasheets.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Other RD Series Models
13 other modelsPlease log in to write a review.
Write a review
Reviews are checked before publishing. By submitting you confirm this is your genuine experience with this product.
Submitting your review…
It's published and now helps other buyers.
We're checking it and it'll appear shortly.
Please try again.
