
Thermal Failure Mechanisms, IEC 60601 Risks, and Engineering Solutions Overheating is one of the most common causes of medical power supply failure. In medical devices, excessive
120 W
90 ~ 264 Vac input (wide)
11~ 54 Vdc output options
-10°C to +40°C temperature range
No-load power consumption < 0.15 W
2 MOPP input to output isolation
PF>0.95@230Vac
meet 2kv surge immunity


The UES120DZ -SPA series is a 120W medical monitor desktop ac-dc external switching power supply with 2 type inlet, designed for home healthcare applications, It offers multiple output options, including 12V, 18V, 24V, 36V, 48V, and 54V, among other voltages (coming with a universal input of 90 ~ 264 Vac). certified to the medical 60601-1 edition 3.1 safety standards for 2 x MOPP applications and 4th edition EMC requirements, ensuring class II operation. Featuring compact size, Level VI efficiency, and different construction, these medical power supplies provide a wide selection of AC plugs and DC connectors to ensure compatibility with global solutions for Ultrasonic dental scaler, blood analyzer, oxygen concentrator, patient monitor, medical display, portable ultrasound system.
Safety Standards – IEC60601,EN60601,UL60601
Safety Approvals – CE, UL/cUL,TUV,CCC
| Model Number | Power(W) | Input Voltage Range(VAC) | Output Voltage(VDC) | Output Current(A) | Operating Temperature Range(℃) | Safety Standards |
|---|---|---|---|---|---|---|
| UES120DZ-SPA | 120.0 | 90-264 | 11.0-12.0 | 0.01-10.00 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 12.1-13.0 | 0.01-9.23 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 13.1-14.0 | 0.01-8.57 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 14.1-15.0 | 0.01-8.00 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 17.1-18.0 | 0.01-6.66 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 18.1-19.0 | 0.01-6.31 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 19.1-20.0 | 0.01-6.00 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 20.1-21.0 | 0.01-5.71 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 21.1-22.0 | 0.01-5.45 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 22.1-23.0 | 0.01-5.21 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 23.1-24.0 | 0.01-5.00 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 24.1-25.0 | 0.01-4.80 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 25.1-26.0 | 0.01-4.61 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 26.1-27.0 | 0.01-4.44 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 33.1-34.0 | 0.01-3.52 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 34.1-35.0 | 0.01-3.42 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 35.1-36.0 | 0.01-3.33 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 36.1-37.0 | 0.01-3.24 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 37.1-38.0 | 0.01-3.15 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 38.1-39.0 | 0.01-3.07 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 39.1-40.0 | 0.01-3.00 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 47.1-48.0 | 0.01-2.50 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 48.1-49.0 | 0.01-2.44 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 49.1-50.0 | 0.01-2.40 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 50.1-51.0 | 0.01-2.35 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 51.1-52.0 | 0.01-2.30 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 52.1-53.0 | 0.01-2.26 | -10~40 | CE, UL/cUL,TUV,CB |
| UES120DZ-SPA | 120.0 | 90-264 | 53.1-54.0 | 0.01-2.22 | -10~40 | CE, UL/cUL,TUV,CB |
Many medical device manufacturers, engineers, products manager will have different problem for medical grade power supplies. The below popular questions maybe is you deal with problems’ best answer.
The output voltage can be configured between 19V and 24V depending on your equipment requirements. Fixed output versions are standard, but adjustable output models can be discussed for custom orders.
Yes, as long as your device operates within the 19–24V and ≤120W range, it should be compatible. Confirm current and polarity before use.
Yes, the power adapter supports global AC plug types, and plug kits or interchangeable plug versions are also available.
This adapter is suitable for a wide range of mid-power medical devices such as patient monitors, portable ultrasound systems, dental scalers, infusion pump charging bases, laboratory analyzers, and medical-grade displays.
Yes, it supports devices like multiparameter patient monitors, ECG systems, and portable pulse oximeters, provided the voltage and current ratings match.
Yes, leakage current is designed to meet BF application limits. For CF applications, verification is recommended based on your specific setup.
Yes, it complies with IEC 60601-1-2 standards (EMC for medical devices), ensuring minimal electromagnetic interference.
Yes, it is certified to IEC/EN/UL 60601-1 (3rd Edition) for medical electrical equipment.
Yes, each unit undergoes full functional and burn-in testing to ensure reliability.
Yes, if the device requires an external power supply within the 120W / 19–24V range and complies with medical safety standards, it is appropriate for homecare medical equipment like portable oxygen concentrators or therapy devices.
UE medical power supply has many different power supplies that can all be chosen from. If you are interested in a medical power solution or are looking for help, please feel free to contact us.

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