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Mean Well SD-50C-24 DC-DC Converter - 50W - 36~72V in 24V out 2.1A
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SD-50C-24 is the 24V output model of this series: rated current 2.1A, rated power 50.4W, typical efficiency 83%.
Features
- 2:1 wide input range
- Protections: Short circuit / Overload / Over voltage
- 1500VAC I/O isolation
- Built-in EMI filter, low ripple noise
- 100% full load burn-in test
- Fixed switching frequency at 83KHz
- Low cost
- High reliability
- 2 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 24V
- RATED CURRENT
- 2.1A
- CURRENT RANGE
- 0 ~ 2.1A
- RATED POWER
- 50.4W
- RIPPLE & NOISE (max.)Note.2
- 150mVp-p
- VOLTAGE ADJ. RANGE
- 23 ~ 30VDC
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.2%
- LOAD REGULATION
- ±0.2%
- SETUP, RISE, HOLD UP TIME
- 2.5s, 50ms, ------ at full load
INPUT
- VOLTAGE RANGE
- C:36 ~ 72VDC
- EFFICIENCY (Typ.)
- 83%
- DC CURRENT
- 1.5A/48V
PROTECTION
- OVERLOAD
- 105 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 31.5 ~ 37.5V/10% load Protection type : Hiccup mode, recovers automatically after fault condition is removed
ENVIRONMENT
- WORKING TEMP.
- -10 ~ +60℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -20 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC (Note 4)
- SAFETY STANDARDS
- EAC TP TC 004 approved, Design refer to LVD, AS/NZS 62368.1
- WITHSTAND VOLTAGE
- I/P-O/P:1.5KVAC 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, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,6,8, BS EN/EN55035, heavy industry level, EAC TP TC 020
OTHERS
- MTBF
- 3293.1K hrs min. Telcordia SR-332 (Bellcore) ; 512.8K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 159*97*38mm (L*W*H)
- PACKING
- 0.43Kg; 24pcs/11.35Kg/0.83CUFT
Test conditions and notes5
- 1. All parameters NOT specially mentioned are measured at 12,24,48VDC 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.
- 4. 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 )
- 5. 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 SD-50C-24 to power a 24V PLC or industrial controller from a 36-72V source?
Yes, this model is intended for constant-voltage 24V loads when the available input is within 36-72V. It can supply up to 2.1A, so the connected 24V control load needs to stay within that output current and the 50W rating.
Is the SD-50C-24 a good fit for 24V relays, sensors, or automation accessories in a control cabinet?
It can fit 24V industrial accessories that need a constant-voltage output and draw no more than 2.1A total. The 2:1 wide input range also helps when the source available to the cabinet is anywhere in the 36-72V range.
Can this converter support a 24V HMI, panel PC, or network device in an industrial system?
It can work for 24V electronics that use constant-voltage power and stay within 2.1A output current. For devices with variable load, the key check is that the total demand remains inside the 50W output limit.
Is 50W enough for my 24V control load?
This unit provides 24V at up to 2.1A, so it is sized for loads that stay within both of those limits. If the connected equipment needs more than 2.1A at 24V, this model is undersized.
Is the SD-50C-24 suitable for outdoor or harsh-environment use?
The listed operating temperature is -10°C to +60°C, which defines the temperature window the unit is rated for. No IP rating is listed in the provided specs, so outdoor or washdown suitability depends on the enclosure used around it rather than the converter alone.
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Other SD-50C Models
2 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well SD-50C-5 DC-DC Converter - 50W - 36~72V in 5V out 10A | 50W | 5V | 10A | IP20 | View |
| Mean Well SD-50C-12 DC-DC Converter - 50W - 36~72V in 12V out 4.2A | 50.4W | 12V | 4.2A | IP20 | View |
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