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Mean Well RT-50D Power Supply 50W 5V 24V 12V 3A
Overview
RT-50D is the 5V 24V 12V output model of this series: rated current 3A 1A 1A, rated power 51W, typical efficiency 78%.
Features
- Universal AC input / Full range
- Protections: Short circuit / Overload / Over voltage
- Cooling by free air convection
- LED indicator for power on
- 100% full load burn-in test
- All using 105℃ long life electrolytic capacitors
- Withstand 300VAC surge input for 5 second
- High operating temperature up to 70℃
- Withstand 5G vibration test
- High efficiency, long life and high reliability
- 3 years warranty
Specifications
OUTPUT
- OUTPUT NUMBER
- CH1 CH2 CH3
- DC VOLTAGE
- 5V 24V 12V
- RATED CURRENT
- 3A 1A 1A
- CURRENT RANGENote.3
- 0 ~ 5A 0 ~ 1.5A 0 ~ 1A
- RATED POWER
- 51W
- RIPPLE & NOISE (max.)Note.2
- 80mVp-p 150mVp-p 120mVp-p
- VOLTAGE ADJ. RANGE
- CH1: 4.75 ~ 5.5V
- VOLTAGE TOLERANCENote.3
- ±2.0% ±8.0% ±6.0%
- LINE REGULATIONNote.4
- ±0.5% ±2.0% ±2.0%
- LOAD REGULATIONNote.5
- ±1.0% ±3.0% ±4.0%
- SETUP, RISE TIME
- 500ms, 20ms/230VAC 1200ms, 30ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 60ms/230VAC 10ms/115VAC at full load
INPUT
- VOLTAGE RANGE
- 88 ~ 264VAC 125 ~ 373VDC (Withstand 300VAC surge for 5sec. Without damage)
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 78%
- AC CURRENT (Typ.)
- 1.3A/115VAC 0.8A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 48A/230VAC
- LEAKAGE CURRENT
- <2mA / 240VAC
PROTECTION
- OVERLOAD
- 110 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- CH1: 5.75 ~ 6.75V Protection type : Hiccup mode, recovers automatically after fault condition is removed
ENVIRONMENT
- WORKING TEMP.
- -25 ~ +70℃ (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℃)on +5V output
- VIBRATION
- 10 ~ 500Hz, 5G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC (Note 6)
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004, BIS IS13252(Part1): 2010/IEC 60950-1:2005 approved
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC 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, BS EN/EN61000-3-2,-3, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035,BS EN/EN61000-6-2 (BS EN/EN50082-2), heavy industry level, EAC TP TC 020
OTHERS
- MTBF
- 2788.1K hrs min. Telcordia SR-332 (Bellcore) ; 504.7K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 99*97*36mm (L*W*H)
- PACKING
- 0.41Kg; 45pcs/19.5Kg/0.94CUFT
Test conditions and notes7
- 1. All parameters NOT specially mentioned are measured at 230VAC 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, when multi-channel output, it is recommended that CH1 load > 10%.
- 4. Line regulation is measured from low line to high line at rated load.
- 5. Load regulation is measured from 0% to 100% rated load.
- 6. 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 )
- 7. 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
Certificates8
Test reports1
Catalogues1
FAQ
Can the RT-50D be used in automation equipment that needs 24V and 12V rails along with 5V logic power?
Yes, when the design matches the RT-50D's triple output combination of 5V, 24V, and 12V. The unit is a constant voltage supply rated for 51W total, with the listed 5V output at 3A. That makes it relevant for compact automation assemblies that use mixed DC rails in one enclosure.
Is the RT-50D suitable for compact PLC accessory or sensor interface cabinets?
It can be suitable for lower-power cabinet applications where the total draw fits within 51W and the 5V logic section stays within 3A. The broad 88-264VAC input helps when the same equipment may be used across different AC mains. Its 99.0 × 97.0 × 36.0 mm size also supports space-constrained panels.
Can I use the RT-50D for embedded systems that need separate logic and field-voltage rails?
Yes, that is one of the more natural use cases for this output mix. The model provides 5V, 24V, and 12V in a constant voltage format, with 51W total available and 5V rated at 3A. It is better aligned with mixed-voltage control electronics than a single-output supply.
Does the RT-50D support tougher ambient conditions inside industrial equipment?
The specified operating temperature range is -25°C to +70°C, and the features state 5G vibration resistance and 70°C operation. Those figures support use in demanding indoor industrial environments. Since no IP rating is listed, the provided specs do not establish outdoor or washdown suitability.
What separates the RT-50D from the other RT models shown here?
The RT-50D is a triple-output model providing 5V (3A), 24V (1A), and 12V (1A) with a total rated power of 51W. Unlike single-output models, it supplies three distinct DC rails simultaneously. It features universal AC input (88-264VAC), free air convection cooling, and protections for short circuit, overload, and over voltage. The unit operates up to 70°C and carries a 3-year warranty.
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