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Mean Well RQ-125B Power Supply 125W 5V 12V -5V -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.) | 50A 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. | 902 |
| Packing | 20pcs /14kg |
Specifications
Specifications
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BrandMean Well
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SeriesRT Series
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Power Rating120 Watt
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Output Voltage5 Volt
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Rated Current11 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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Frequently Asked Questions
Can I use the RQ-125B for an industrial controller that needs 5V logic plus +/-12V and -5V rails?
Yes, this is a quad output supply with 5V, 12V, -5V, and -12V outputs. The main 5V output is rated for 11A, and the total output power is 120W. That makes it suitable for mixed-voltage control electronics built around a heavier 5V load.
Is the RQ-125B a fit for test equipment or instrumentation with several low-voltage rails?
It can fit instrumentation that needs multiple regulated rails from one supply, especially where the primary demand is on 5V up to 11A. The total rating is 120W, and the unit uses constant voltage operation. Its quad output design is the main differentiator for multi-rail electronics.
Would this power supply work for automation hardware in a vibration-prone machine environment?
The feature list states that it can withstand 5G vibration and 70C operation. Combined with a -25C to +70C operating range and 120W output, that makes it more appropriate for industrial environments than lighter-duty indoor electronics supplies with no vibration statement. It still needs an application that matches the listed outputs.
Can the RQ-125B support a larger 5V embedded system than the smaller RQ models?
Yes, its main 5V output is rated for 11A, which is higher than the 5A, 6A, 7A, 8A, and 10A figures shown on the smaller listed siblings. With 120W total output, it is positioned for heavier 5V-centric electronics that also need additional rails. The input range is 88-264VAC.
Is the RQ-125B suitable for outdoor use or only for controlled enclosures?
The listed operating temperature range is -25C to +70C. No IP rating is provided in the specs, so the data does not define outdoor, rain, or dust-ingress suitability. From the published information, temperature and vibration are specified, while ingress protection is not.
How does the RQ-125B compare with the other RQ series options listed here?
Within the provided sibling list, RQ-50B is 45.5W with 5V and 5A, RQ-50C is 50W with 5V and 5A, RQ-50D is 53.4W with 5V and 3A, RQ-65B is 62.5W with 5V and 6A, RQ-65C is 65W with 5V and 5A, RQ-65D is 68W with 5V and 4A, RQ-85B is 80.7W with 5V and 7A, RQ-85C is 82.5W with 5V and 7A, RQ-85D is 84W with 5V and 6A, RQ-125C is 122.5W with 5V and 10A, and RQ-125D is 124W with 5V and 8A. RQ-125ND is listed as a sibling, but no wattage or current is provided in the supplied data.
