Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well RQ-50B Power Supply 50W 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.) | 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) | 99x 97x 36 |
| Case No. | 905B |
| Packing | 45pcs /19.5kg |
Specifications
Specifications
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BrandMean Well
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SeriesRT Series
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Power Rating45.5 Watt
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Output Voltage5 Volt
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Rated Current5 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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Length9.9 cm
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Width9.7 cm
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Height3.6 cm
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Weight0.41 kg
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Frequently Asked Questions
Can I use the RQ-50B for a compact embedded controller that needs 5V logic and +/-12V rails?
Yes, if the system power requirement fits within the unit's 45.5W total rating. The RQ-50B provides a 5V main output at 5A and includes 12V, -5V, and -12V outputs in one quad output supply. That makes it relevant for smaller mixed-signal control and interface boards.
Is the RQ-50B suitable for bench or lab equipment with low-power digital and analog sections?
It can be a practical option for lower-power equipment that needs several DC rails from one supply. The 5V rail is rated at 5A, total power is 45.5W, and the housing is only 99.0 x 97.0 x 36.0 mm. Those specs suit compact instruments and test fixtures with modest load requirements.
Can the RQ-50B be used in a small industrial monitoring or signal-conditioning enclosure?
Yes, where the design is centered on 5V electronics and also requires 12V and -12V or -5V rails. The supply uses constant voltage operation and accepts 88-264VAC input, which is useful for equipment deployed across different AC mains conditions. Its 0.41 kg weight also helps in smaller cabinet layouts.
Is the RQ-50B appropriate for indoor factory panels or exposed outdoor locations?
The product is rated for operation from -25°C to +70°C and is specified to withstand 5G vibration, which supports industrial indoor use. The provided specs do not list an IP rating. Without an IP rating in the product data, outdoor exposure suitability is not established here.
How does the RQ-50B compare with other RQ series power supplies in this group?
The RQ-50B is one of the lower-power models at 45.5W with a 5V main output rated at 5A. Other listed siblings are RQ-50C at 50W and 5V 5A, RQ-50D at 53.4W and 5V 3A, RQ-65B at 62.5W and 5V 6A, RQ-65C at 65W and 5V 5A, RQ-65D at 68W and 5V 4A, RQ-85B at 80.7W and 5V 7A, RQ-85C at 82.5W and 5V 7A, RQ-85D at 84W and 5V 6A, RQ-125B at 120W and 5V 11A, RQ-125C at 122.5W and 5V 10A, and RQ-125D at 124W and 5V 8A. RQ-125ND is also listed, but no specifications were supplied for it.
