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Mean Well

Mean Well RSD-200C-48 DC-DC Converter - 201.6W - 33.6~62.4V in 48V out 4.2A

miniature sizeeconomicalwithstand 5G vibration and 70°C operation
SKU RSD-200C-48
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Overview

RSD-200C-48 is the 48V output model of this series: rated current 4.2A, rated power 201.6W, typical efficiency 91%.

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-200C-48Specifications from the official datasheet (2025-07-18 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
4.2A
CURRENT RANGE
0 ~ 4.2A
RATED POWER
201.6W
RIPPLE & NOISE (max.)Note.2
180mVp-p
VOLTAGE TOLERANCENote.3
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
800ms, 50ms at full load
HOLD UP TIME (Typ.)
Please refer to page 3 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%
DC CURRENT (Typ.)
4.8A/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
55.2 ~ 64.8V 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 ~ 50℃ )
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373
OPERATING ALTITUDE
5000 meters

SAFETY & EMC (Note 4)

SAFETY STANDARDS
UL 62368-1, IEC 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
2125.5K hrs min. Telcordia SR-332 (Bellcore) ; 218.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
191*86*40mm (L*W*H)
PACKING
0.94Kg; 12pcs/12.3Kg/0.73CUFT
Test conditions and notes6
  1. 1. All parameters NOT specially mentioned are measured at 24,48,110VDC 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. Strongly recommended that external output capacitance should not exceed 5000uF. (Only for: RSD-200-12)
  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-200C-48 Mechanical Specification
Mechanical Specification
RSD-200C-48 Block Diagram
Block Diagram
RSD-200C-48 Input Under-Voltage Protection
Input Under-Voltage Protection
RSD-200C-48 Hold-up Time
Hold-up Time
RSD-200C-48 Efficiency vs Load & Vin Curve
Efficiency vs Load & Vin Curve
RSD-200C-48 Overload Protection
Overload Protection
RSD-200C-48 LOAD(%)
LOAD(%)
RSD-200C-48 R S D - 2 0 0 series
R S D - 2 0 0 series
RSD-200C-48 EN45545-2 Fire Test Conditions
EN45545-2 Fire Test Conditions

Downloads

FAQ

Can I use the RSD-200C-48 for 48V telecom or network equipment from a 33.6~62.4V DC source?

Yes, this model is a constant-voltage 48V DC-DC converter with 201.6W output and 4.2A available. It fits 48V telecom or network loads when the source stays within 33.6~62.4V and the load stays within 4.2A.

Is the RSD-200C-48 a good fit for 48V industrial communication or control devices?

It is suitable for 48V industrial electronics that require a regulated 48V bus and do not exceed 201.6W. The 48V output and 4.2A rating make it better matched to 48V control and communication equipment than to higher-current 12V or 24V loads.

Can this converter be used in battery-powered automation systems that need 48V output?

It can be used where the available source is in the 33.6~62.4V range and the downstream system needs constant 48V output. The compact 191.0 × 86.0 × 40.0 mm size and 0.94 kg weight also help in space-limited industrial or mobile installations.

Would the RSD-200C-48 work for 48V embedded computing or edge hardware?

It can support 48V embedded or edge systems that need up to 4.2A from a 48V rail. Buyers should size the load against the full 201.6W rating rather than choosing it only by output voltage.

How does the RSD-200C-48 compare with the other RSD-200C versions?

The RSD-200C-12 is rated at 200.4W, 12V, and 16.7A, the RSD-200C-24 is rated at 201.6W, 24V, and 8.4A, and the RSD-200C-48 is rated at 201.6W, 48V, and 4.2A. They stay close in overall wattage, but the output voltage and output current change across the range.

Can the RSD-200C-48 be used in cold or hot industrial environments?

Its specified operating range is -40°C to +55°C with no derating, extending to +70°C at 60% load by free air convection. No IP rating is provided in the specs, so it should not be treated as an exposed outdoor unit without additional enclosure protection.

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Other RSD-200C Models

1 other model
ModelPowerVoltageCurrentIP Rating
Mean Well RSD-200C-24 DC-DC Converter - 201.6W - 33.6~62.4V in 24V out 8.4A 201.6W 24V 8.4A IP20 View
View all 85 RSD Series models
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Mean Well RSD-200C-48 DC-DC Converter - 201.6W - 33.6~62.4V in 48V out 4.2A
Mean Well

Mean Well RSD-200C-48 DC-DC Converter - 201.6W - 33.6~62.4V in 48V out 4.2A

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RSD-200C-48 is the 48V output model of this series: rated current 4.2A, rated power 201.6W, typical efficiency 91%.

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
View product

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