Guangzhou Kaihui Electronics Co., Ltd. is one of the leading manufacturers and suppliers of 48v poe power supply in China. With abundant experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for customized service.
The K18-U200S48 is a 48V PoE power supply that converts universal AC input into a precisely regulated 48V DC rail. With 88% efficiency and an open frame form factor, it integrates directly into PoE switches, midspans, and embedded network appliances. The ±10% adjustable output compensates for line losses across extended Ethernet runs, while built-in over-temperature, overload, and short circuit protections ensure continuous uptime. Certifications to GB4943/EN60950 and EN55022 Class B EMC compliance confirm its fitness for global professional deployment.
Parameter
|
Item NO |
K18-U200S12 |
K18-U200S24 |
K18-U200S36 |
K18-U200S48 |
|
|
Output |
Output Voltage |
+12V |
+24V |
+36V |
+48V |
|
Rated Current |
16.7A |
8.3A |
5.6A |
4.2A |
|
|
Current Range |
0-16.7A |
0-8.3A |
0-5.6A |
0-4.2A |
|
|
Rated Power |
200.4W |
199.2W |
201.6W |
201.6W |
|
|
Ripple & Noise |
120mVp-p |
240mVp-p |
360mVp-p |
480mVp-p |
|
|
Adjustable Output Range |
±10% |
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|
Output Accuracy |
±1% |
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|
Line Regulation |
±0.5% |
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|
Load Regulation |
±0.5% |
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Set up,Rise,Keep up time |
50ms, 50ms, 20ms |
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|
Input |
Input Voltage Range |
90-264V AC,110-360V DC |
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|
Input Current |
5A/115V,2.5A/230V |
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|
Input Frequency |
47-63Hz |
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|
Power Factor |
--- |
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|
Efficiency @230Vac |
87% |
87% |
88% |
88% |
|
|
Inrush Current |
30A@230V |
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|
Leakage Current |
<0.5mA@240V |
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|
Protection |
Over Load Protection |
105~150% Type:Hiccup Reset:automatic recovery |
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Short Circuit Protection |
Type:Hiccup Reset: automatic recovery |
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Over Temp., protection |
Cover temp.>105℃,output closed,automatic recovery |
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|
Environment |
Working Temp.,Humidity |
-10~50℃,10~90% RH,No condensation |
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Storage Temp.,Humidity |
-20~85℃,10~95% RH |
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|
Temp.,Drift |
±0.03%/℃(0~50℃) |
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|
Vibration |
10~500Hz, 2G 10min /1cycle, PERIOD FOR 60min EACH AXES |
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|
Safety&EMC Standards |
Safety Standards |
GB4943 EN60950 |
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|
Withstand Voltage |
I/P-O/P:1.5KV; I/P-FG：1.5KV;O/P-FG:0.5KV DC 1min |
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|
Insulation Resistance |
I/P-O/P, I/P-FG, O/P-FG:500VDC / 100M Ohms |
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|
EMC Standards |
GB9254 EN55022 CLASS B |
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|
Others |
Dimension |
127*82*40mm(L*W*H) |
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|
Weight |
0.5kg |
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Key Advantages and Features
- PoE-Optimized 48V Output: Delivers voltage within the standard 44–57V PoE range, fully powering IEEE 802.3af/at devices with low 480mVp-p ripple to prevent data interference.
- 88% Efficiency & Thermal Reliability: High conversion efficiency reduces waste heat, enabling continuous -10℃ to +50℃ operation without derating.
- Comprehensive Protection Suite: Overload (105–150%), short circuit, and over-temperature protection are standard. Automatic shutdown at 105℃ and cool-down reset prevent thermal damage.
- ±10% Voltage Adjustment: Fine-tune the 48V output to offset voltage drop over long cable runs, maintaining stable PoE delivery at the powered device.
- Universal Input Range: Accepts 90–264V AC or 110–360V DC, simplifying global inventory and deployment across diverse grids.
- International Certifications: CE, PSE, UL, ETL, and CCC certified. Meets GB4943/EN60950 safety and EN55022 Class B EMC standards with 1.5KV I/P-O/P isolation.
Application Scenarios
- IP Surveillance: Powers distributed PoE cameras without local AC outlets, reducing installation costs.
- Wireless Networks: Centralized power for PoE access points across offices, hotels, and campuses.
- VoIP Telephony: Enables UPS-backed power delivery to all enterprise IP phones over structured cabling.
- Digital Signage: Supplies PoE-enabled displays and kiosks in retail and public venues.
- Building Automation: Drives PoE sensors, controllers, and smart lighting in intelligent building systems.
Products Description
Q: Can we use our own logo?
A: Yes, we can print your private logo according to your request.
Q: Can you do our own packaging?
A: Yes, you just provide the package design and we will produce what you want. We also have the professional designer can help you do the packaging design.
Q: Do you provide a free sample ?
A:Sorry,usually we don't provide the free samples.
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