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Mean Well

Mean Well SD-350C-24 DC-DC Converter - 350W - 36~72V in 24V out 14.6A

2:1 wide input range1.5~2KVAC isolation by models
SKU SD-350C-24
$110.13 USD
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Overview

SD-350C-24 is the 24V output model of this series: rated current 14.6A, rated power 350.4W, typical efficiency 81%.

Features

  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • 1500VAC I/O isolation
  • Forced air cooling by built-in DC Fan
  • 100% full load burn-in test
  • 24V and 48V input voltage design refer to LVD
  • 2 years warranty

Specifications

SD-350C-24Specifications from the official datasheet (2024-11-22 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
14.6A
CURRENT RANGE
0 ~ 14.6A
RATED POWER
350.4W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE ADJ. RANGE
23 ~ 30VDC
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
300ms, 50ms at full load

INPUT

VOLTAGE RANGE
36 ~ 72VDC
EFFICIENCY (Typ.)
81%
DC CURRENT (Typ.)
9.0A/48V
INRUSH CURRENT (Typ.)
45A/48VDC

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Shut down o/p voltage, re-power on to recover
OVER VOLTAGE
31.5 ~ 37.5V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.
-20 ~ +60℃ (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℃)
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 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, light industry level, EAC TP TC 020

OTHERS

MTBF
1705.6K hrs min. Telcordia SR-332 (Bellcore) ; 263.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
215*115*50mm (L*W*H)
PACKING
1.1Kg; 12pcs/14.4Kg/0.9CUFT
Test conditions and notes5
  1. 1. All parameters NOT specially mentioned are measured at 24,48,96VDC input, rated load and 25℃ of ambient temperature.
  2. 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. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 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. 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

SD-350C-24 Mechanical Specification
Mechanical Specification
SD-350C-24 Block Diagram
Block Diagram
SD-350C-24 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SD-350C-24 to power a 24V PLC or industrial control cabinet from a higher-voltage DC bus?

Yes, this model is a constant-voltage 24V DC-DC converter rated for 350.4W and 14.6A output from a 36-72V input range. That makes it suitable for 24V industrial control loads as long as the total demand stays within 14.6A and 350.4W.

Is the SD-350C-24 suitable for 24V automation devices like HMIs, relays, and sensors on one power rail?

It can be used for grouped 24V automation loads because it provides a regulated 24V constant-voltage output. The key sizing limits are 14.6A maximum output current and 350.4W total output power.

Can this converter support 24V embedded or mobile equipment that runs from a 36-72V source?

Yes, the input range is 36-72V and the output is fixed at 24V in constant-voltage mode. It fits 24V embedded equipment where the combined load stays within 14.6A and 350.4W.

Is the SD-350C-24 appropriate for outdoor or washdown environments?

The listed operating temperature is -20°C to +60°C, so that is the defined temperature window. No IP rating is provided in the specs, so enclosure protection against water or dust is not specified and outdoor or washdown use should not be assumed from this data alone.

How does the SD-350C-24 compare with the other SD-350C output versions?

Within the SD-350C group, the listed variants are SD-350C-12 at 330W, 12V, 27.5A; SD-350C-24 at 350.4W, 24V, 14.6A; SD-350C-48 at 350.4W, 48V, 7.3A; and SD-350C-5 at 300W, 5V, 60A. The main differences are the output voltage and current ratings, while this model is the 24V, 14.6A, 350.4W version.

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Mean Well SD-350C-24 DC-DC Converter - 350W - 36~72V in 24V out 14.6A
Mean Well

Mean Well SD-350C-24 DC-DC Converter - 350W - 36~72V in 24V out 14.6A

$110.13 USD

SD-350C-24 is the 24V output model of this series: rated current 14.6A, rated power 350.4W, typical efficiency 81%.

Features

  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • 1500VAC I/O isolation
  • Forced air cooling by built-in DC Fan
  • 100% full load burn-in test
  • 24V and 48V input voltage design refer to LVD
  • 2 years warranty
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