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Mean Well

Mean Well RSD-300C-24 DC-DC Converter - 300W - 33.6~62.4V in 24V out 12.5A

miniature sizeeconomicalwithstand 5G vibration and 70°C operation
SKU RSD-300C-24
$138.17 USD
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Overview

RSD-300C-24 is the 24V output model of this series: rated current 12.5A, rated power 300W, typical efficiency 91.5%.

Features

  • Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature / Input reverse polarity
  • 4000VDC I/O isolation
  • Cooling by free air convection
  • Half encapsulated
  • Built-in constant current limiting circuit
  • 1U low profile 40mm
  • All using 105℃ long life electrolytic capacitors
  • LED indicator for power on
  • 100% full load burn-in test
  • 3 years warranty

Specifications

RSD-300C-24Specifications from the official datasheet (2025-07-18 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
12.5A
CURRENT RANGE
0 ~ 12.5A
RATED POWER
300W
RIPPLE & NOISE (max.)Note.2
150mVp-p
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
800ms, 50ms at full load
HOLD UP TIME (Typ.)
Please refer to page 5,6 Hold up Time( Load de-rating curve )

INPUT

VOLTAGE RANGE CONTINUOUS
33.6 ~ 62.4VDC
VOLTAGE RANGE 1 SEC.
28.8 ~ 67.2VDC
EFFICIENCY (Typ.)
91.5%
DC CURRENT (Typ.)
7.2A/48V
INRUSH CURRENT (Typ.)
45A/48VDC
INTERRUPTION OF VOLTAGE SUPPLY
EN50155:2021-Comply with S1 level

PROTECTION

OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
27.6 ~ 32.4V 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.
-40 ~ +55℃ (no derating) ; +70℃ @ 60% load by free air convection ; +70℃ no derating with external base plate, TX class compliance
WORKING HUMIDITY
5 ~ 95% RH non-condensing
STORAGE TEMP.
-40 ~ +85℃
TEMP. COEFFICIENT
± 0.03%/℃ (0 ~ 55℃ )
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373
OPERATING ALTITUDE
5000 meters

SAFETY & EMC (Note 5)

SAFETY STANDARDS
IEC 62368-1, UL 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
WITHSTAND VOLTAGE
I/P-O/P:4KVDC I/P-FG:2.5KVDC O/P-FG:2.5KVDC
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) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8, BS EN/EN55035, light industry level, EAC TP TC 020
RAILWAY STANDARD
BS EN/EN50155 / IEC60571 including IEC61373 for shock & vibration,BS EN/EN50121-3-2 for EMC;BS EN/EN45545-2 for fire protection

OTHERS

MTBF
1850.1K hrs min. Telcordia SR-332 (Bellcore) ; 130.8K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
216*96.5*40mm (L*W*H)
PACKING
1.19Kg ; 12pcs/15.3Kg/0.97CUFT
Test conditions and notes6
  1. 1. All parameters NOT specially mentioned are measured at 24,48VDC 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. Strongly recommended that external output capacitance should not exceed 5000uF. (Only for: RSD-300-5 / -12)
  5. 5. 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 )
  6. 6. 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

RSD-300C-24 Mechanical Specification
Mechanical Specification
RSD-300C-24 Block Diagram
Block Diagram
RSD-300C-24 Input Under-Voltage Protection
Input Under-Voltage Protection
RSD-300C-24 Hold-up Time
Hold-up Time
RSD-300C-24 Efficiency vs Load & Vin Curve
Efficiency vs Load & Vin Curve
RSD-300C-24 Parallel and Series Connection
Parallel and Series Connection
RSD-300C-24 supplier if you have this kind of application.
supplier if you have this kind of application.
RSD-300C-24 supplier if you have this kind of application. (2)
supplier if you have this kind of application. (2)
RSD-300C-24 Overload Protection
Overload Protection
RSD-300C-24 Derating Curve
Derating Curve
RSD-300C-24 R S D - 3 0 0 series (2)
R S D - 3 0 0 series (2)
RSD-300C-24 LOAD(%)
LOAD(%)

Downloads

FAQ

Can I use the RSD-300C-24 to power a 24V industrial control panel from a 33.6 to 62.4V DC battery system?

Yes. The RSD-300C-24 is a constant-voltage DC-DC converter that accepts 33.6 to 62.4V input and provides 24V output. Its 300W and 12.5A rating fits 24V control loads that need regulated output within that power range.

Is this converter suitable for 24V embedded computers or industrial IPCs in mobile equipment?

It can be a fit when the equipment needs a regulated 24V output from a 33.6 to 62.4V DC source. The unit delivers up to 12.5A at 24V and is rated for 300W, which suits higher-draw embedded and IPC loads within those limits.

Can the RSD-300C-24 be used in automation systems with vibration, such as vehicles or moving machinery?

Yes. This model is specified to withstand 5G vibration, which makes it more appropriate for mobile or vibration-prone automation environments than units without that stated feature. It also keeps the same 24V constant-voltage output and 300W capacity in that use case.

Would this 24V converter work for industrial communications or networking equipment that runs on 24V DC?

Yes, if the equipment requires 24V constant-voltage power and stays within 12.5A and 300W. Its 33.6 to 62.4V input range is useful where the source bus is higher-voltage DC and the downstream equipment needs regulated 24V.

Is the RSD-300C-24 suitable for outdoor or washdown environments?

The provided specs list an operating temperature range of -40°C to +55°C at full load, up to +70°C at 60% load by free-air convection, or +70°C at full load with an external base plate; -40°C to +85°C is the storage range. No IP rating is provided, so the specs do not establish outdoor exposure or washdown suitability.

How does the RSD-300C-24 compare with the other RSD-300C output versions?

Within the RSD-300C group, the listed siblings are RSD-300C-5 at 210W, 5V, 42A, RSD-300C-12 at 300W, 12V, 25A, RSD-300C-24 at 300W, 24V, 12.5A, and RSD-300C-48 at 302.4W, 48V, 6.3A. The main differences are output voltage, output current, and listed power.

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Mean Well RSD-300C-24 DC-DC Converter - 300W - 33.6~62.4V in 24V out 12.5A
Mean Well

Mean Well RSD-300C-24 DC-DC Converter - 300W - 33.6~62.4V in 24V out 12.5A

$138.17 USD

RSD-300C-24 is the 24V output model of this series: rated current 12.5A, rated power 300W, typical efficiency 91.5%.

Features

  • Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
  • 2:1 wide input range
  • Protections: Short circuit / Overload / Over voltage / Over temperature / Input reverse polarity
  • 4000VDC I/O isolation
  • Cooling by free air convection
  • Half encapsulated
  • Built-in constant current limiting circuit
  • 1U low profile 40mm
  • All using 105℃ long life electrolytic capacitors
  • LED indicator for power on
  • 100% full load burn-in test
  • 3 years warranty
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