Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well RT-125B Power Supply 125W 5V 12V -12V
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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 Rating132 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-125B for industrial electronics that need 5V, 12V, and -12V outputs from one supply?
Yes, this model is built for that kind of multi-rail requirement because it provides 5V, 12V, and -12V outputs. It is rated for 132W total power, and the 5V output is rated at 12A.
Is the RT-125B suitable for analog or interface boards that need a -12V rail?
It can be appropriate because the RT-125B specifically includes a -12V output in addition to 5V and 12V. That makes it a stronger match than models that provide -5V, -15V, or no negative rail at all.
Can the RT-125B be used in embedded test equipment or bench electronics with several low-voltage rails?
Yes, the triple-output design is useful where one supply needs to serve multiple DC rails at once. Its 132W rating and 199.0 x 98.0 x 38.0 mm size make it practical for compact embedded or electronic equipment builds.
Would the RT-125B make sense in a control cabinet exposed to vibration and elevated temperature?
The listed features include 5G vibration resistance and operation up to 70°C. Combined with the -25°C to +70°C operating range, that supports use in demanding indoor industrial cabinets.
Can the RT-125B be used outside a sealed enclosure?
The temperature range is -25°C to +70°C, but no IP rating is listed in the provided specifications. Because of that, it is better suited to protected indoor equipment or enclosed housings than open outdoor exposure.
What is the difference between RT-125B and the other RT-125 models?
RT-125B is the 132W version with 5V, 12V, and -12V outputs. The related models are RT-125A at 131W with 5V, 12V, and -5V, RT-125C at 132.5W with 5V, 15V, and -15V, and RT-125D at 136W with 5V, 24V, and 12V; their 5V current ratings are 12A, 10A, and 8A respectively for A, C, and D.
