Welcome to Shanghai Wenba Electric Co., Ltd.
Welcome to Shanghai Wenba Electric Co., Ltd.
·Universal AC input range
·Small volume，low weight，high efficiency
·Protections:short circuit/over load/Over voltage/Over temperature
·Built-in active PFC function, PF>0.95
·LED indicator for power on
·100% full load burn-in test
·2 Years warranty
Model | WB-300-5 | WB-300-12 | WB-300-15 | WB-300-24 | |
Output | DC voltage | 5V | 12V | 15V | 24V |
Voltage tolerance | ±1% | ±1% | ±1% | ±1% | |
Rated current | 50A | 25A | 20A | 12.5A | |
Current range | 0-50A | 0-25A | 0-20A | 0-12.5A | |
Rated power | 250W | 300W | 300W | 300W | |
Ripple&Noise | 150mVp-p | 150mVp-p | 180mVp-p | 200mVp-p | |
DCvoltage ADJ.range | ±10% | ±10% | ±10% | ±10% | |
Setup,Rise Time | 800ms,50ms,20ms/230VAC. 2500ms,50ms,20ms/115VAC | ||||
Input | Voltage range | 90～263VAC,47～63Hz，125～370VDC | |||
AC current | 4A/115VAC 2A/230VAC | ||||
efficiency | 80% | 86% | 86% | 88% | |
Inrush current | Cold start 25A/115VAC ,45A/230VAC | ||||
Leakage current | ＜3.5mA/240VAC | ||||
Power factor (Typ.) | PF>0.95/230VAC,PF>0.98/115VAC at full load | ||||
Protection | Over load | 110～135% rated output power | |||
| Protection type : Hiccup mode,recovers automatically after fault condition is removed | |||||
Over voltage | 6.2～7.2V | 15～17V | 18～20V | 30～32V | |
| Protection type : Shut down o/p voltage, re-power on to recover | |||||
Over temperature | 85℃±5℃ start over temperature（DETECT ON SURFACE OF power transistor） | ||||
| Protection type : Shut down o/p voltage, recovers automatically after temperature goes down to 60℃±5℃ | |||||
Environment
| Working temp&humidity | -20℃～+60℃;20%～90%RH(Refer to "Deration Curve") | |||
Storage temp&humidity
| -40℃～+85℃;10%～95%RH non-condensing | ||||
Vibration | 10～500Hz，2G 10min./1cycle，period for 60min，each along X,Y,Z axes | ||||
Safety | Withstand Voltage | I/P-O/P：3KVAC I/P-FG：1.5KVAC O/P-FG：0.5KVAC | |||
Isolation resistance | I/P-O/P：I/P-FG,O/P-FG：100M Ohms/500VDC | ||||
EMC | Safety standard | Compliance UL1012 UL60950-1 CB(IEC60950-1) | |||
EMC Emission | Compliance EN55022，EN55024,CLASS B | ||||
Others | Dimension | 215*115*50mm（L*W*H） | |||
Packing | 1kg/24pcs/25kg/0.049 Cubic meter | ||||
NOTE:
1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
If you are interested in our products, please don’t be hesitated to contact us. Please send mail to tenka@wenbaele.com, or leave your message at the following form. We will contact you within 24 hours. Thank you for your enquiry.
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