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Mean Well

Mean Well SD-350B-24 DC-DC Converter - 350W - 19~36V in 24V out 14.6A

2:1 wide input range1.5~2KVAC isolation by models
SKU SD-350B-24
$110.13 USD
Shipping calculated at checkout.
In stock
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Overview

SD-350B-24 is the 24V output model of this series: rated current 14.6A, rated power 350.4W, typical efficiency 80%.

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-350B-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
20 ~ 36VDC
EFFICIENCY (Typ.)
80%
DC CURRENT (Typ.)
17.6A/24V
INRUSH CURRENT (Typ.)
C:45A/48VDC D:45A/96VDC

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

Downloads

FAQ

Can I use the SD-350B-24 to power a 24V PLC or industrial controller from a 20-36V DC source?

Yes, this converter provides a constant 24V output from a 20-36V input range. Its 350.4W rating and 14.6A output make it appropriate for 24V industrial control equipment that needs a regulated DC supply.

Is this model suitable for 24V HMI, panel PC, or automation interface equipment?

It is a practical fit for 24V automation electronics when the source bus is between 20V and 36V. With up to 14.6A at 24V, it supports higher-power 24V interface and control loads within its 350.4W rating.

Can the SD-350B-24 be used in mobile or battery-based automation systems that need 24V output?

Yes, the 20-36V input range is useful in systems built around DC sources in that range, and the output is regulated at 24V constant voltage. The 350.4W capacity is suited to substantial 24V loads in embedded, industrial, or vehicle-based equipment.

Is the SD-350B-24 intended for indoor or outdoor environments?

The listed operating temperature range is -20°C to +60°C, so its temperature envelope is defined. No IP rating is provided, so the specs do not confirm outdoor exposure or washdown suitability.

What is the difference between the SD-350B-24 and the other SD-350B variants?

The SD-350B-5 is 285W at 5V and 57A, the SD-350B-12 is 330W at 12V and 27.5A, this SD-350B-24 is 350.4W at 24V and 14.6A, and the SD-350B-48 is 350.4W at 48V and 7.3A. They share the same series format, but each version has a different output voltage and corresponding current rating.

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Mean Well SD-350B-24 DC-DC Converter - 350W - 19~36V in 24V out 14.6A
Mean Well

Mean Well SD-350B-24 DC-DC Converter - 350W - 19~36V in 24V out 14.6A

$110.13 USD

SD-350B-24 is the 24V output model of this series: rated current 14.6A, rated power 350.4W, typical efficiency 80%.

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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