Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well RT-125A Power Supply 125W 5V 12V -5V
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Description
Description
Features
| Protections: Short circuit / Overload / Over voltage |
| 100% full load burn-in test |
| Universal AC input/Full range |
| LED indicator for power on |
| High operating temperature up to 70°C |
| Withstand 5G vibration test |
| All using 105°C long life electrolytic capacitors |
| High efficiency, long life and high reliability |
| Cooling by free air convection |
| 3 years warranty |
General Specification
| AC input voltage range | 88~264VAC, 125~373VDC |
| AC inrush current (max.) | 48A at 230VAC |
| DC adjustment range | ±10% by potentiometer for CH1 |
| Overload protection | 110%~150% |
| Over voltage protection | 115%~135% rated output voltage, hiccup mode, auto-recovery |
| Withstand voltage | I/P - O/P: 3KVAC, I/P - FG: 2KVAC, O/P - FG: 0.5KVAC |
| Working temperature | -25~+70°C |
| Vibration | 10~500Hz, 5G 10min. /1 cycle, period for 60 min. each along X, Y, Z axes |
| Safety standards | UL62368-1, TUV EN62368-1 approved |
| EMC standards | EN55032 class B, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11, EN61000-6-2 (EN50082-2) |
| Connection | Terminal block for input and output |
| Dimension (LxWxH) | 199x 98x 38 |
| Case No. | 902A |
| Packing | 20pcs /14kg |
Specifications
Specifications
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BrandMean Well
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SeriesRT Series
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Power Rating131 Watt
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Output Voltage5 Volt
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Rated Current12 Ampere
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Input Voltage88V~264V
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Standards MetCB,CE,EAC,RCM,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-25°C~70°C
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Warranty3 Year
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Length19.9 cm
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Width9.8 cm
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Height3.8 cm
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Weight0.7 kg
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Payment methods
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Frequently Asked Questions
Can I use the RT-125A in an industrial control panel that needs 5V, 12V, and -5V rails?
Yes, this triple-output model provides 5V, 12V, and -5V from one power supply. Its total power rating is 131W, and the main 5V output is rated for 12A, which suits control electronics that need those three DC rails together.
Is the RT-125A a good fit for legacy automation or embedded systems that still require a negative rail?
It can be a fit because this version includes a -5V output along with 5V and 12V. That makes it more relevant for older industrial or embedded designs that cannot run from only positive-voltage rails.
Can the RT-125A power mixed logic and interface circuits in a compact machine build?
Yes, the RT-125A is designed as a triple-output constant-voltage supply in a 199.0 x 98.0 x 38.0 mm package. With 131W total power and 12A on the 5V output, it suits compact machine or automation assemblies that need multiple low-voltage rails in one unit.
Would the RT-125A work for equipment in vibration-prone industrial environments?
It may be suitable where vibration resistance matters because the listed features include withstanding 5G vibration. The operating temperature range of -25°C to +70°C also supports use in equipment exposed to broad indoor temperature swings.
Is the RT-125A suitable for outdoor use or only for protected indoor enclosures?
The published operating temperature range is -25°C to +70°C, which supports a fairly wide thermal range. No IP rating is listed, so it should be treated as a supply for protected indoor or enclosed use rather than direct outdoor exposure.
How does the RT-125A compare with the other RT-125 triple-output models?
In the RT-125 group, RT-125A is 131W with 5V, 12V, and -5V, RT-125B is 132W with 5V, 12V, and -12V, RT-125C is 132.5W with 5V, 15V, and -15V, and RT-125D is 136W with 5V, 24V, and 12V. The listed 5V current ratings are 12A for RT-125A, 12A for RT-125B, 10A for RT-125C, and 8A for RT-125D.
