Delivery Time:10 - 15 working days after received your payment
Certification:ISO9001 / CE / ROHS / FCC
270W 4.5v 60a LED Display Power Supply Ultrathin 196 x 110 x 30mm
Applications:
* urban landscape lighting
* LED Lighting
* Stage
* Military project
* Communication security equipment
* indoor and outdoor advertising screens
* New energy and other Various industries
Features:
* AC input range selectable by switch
* Cooling by free air convection
* Withstand 300vac surge input for 5 second
* Built-in constant current limiting circuit
* 100% full load burn-in test
* Fixed switching frequency at 90KHz
* Low cost,high reliability
* 2 years warranty
* Protections:Short circuit / Overload / Over voltage / Over temperature
Specifications:
Switching power supply | NHI300-4.5-A |
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OUTPUT | DC Voltage | 4.5V |
Current Range | 0~60A |
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Rated Current | 60A |
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Rated Power | 270W |
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Ripple & Noise(max.) | <250mVp-p |
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Voltage ADJ.Range | 4.05~5.0V |
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Voltage Tolerance | 2.0% |
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Line Regulation | 0.5% |
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Load Regulation | 1.0% |
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Setup,Rise Time | 1000ms,50ms/230VAC |
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Hold up time | 20ms/230VAC |
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INPUT | Voltage Range | 200-240VAC |
Frequency Range | 47-63Hz |
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Efficiency(Typ.) | 83-88% |
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AC Current | 4A/230VAC |
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Inrush Current(max.) | 60A/230VAC |
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Leakage Current | < 3.5mA /240VAC |
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Protection | Over Load | 105 ~ 150% rated output power |
Protection type: Constant current limiting,recovers automatically after fault condition is removed |
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Over Voltage | 5.2~ 6.3V |
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Protection type: Shut down O/P voltage,re-power on to recover |
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Over Temperature | 90℃ 5℃ |
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Protection type: Shut down O/P voltage,recovers automatically after temperature goes down |
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Function | Fan on/off control(Typ.) | RTH2≧50℃ Fan on,≦45℃ Fan off |
Environment | Working Temp. | -40 ~ +60℃ (Refer to output load derating curve) |
Working Humidity | 20 ~ 90% RH, non-condensing |
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Storage Temp., Humidity | -40 ~ +85℃, 10 ~ 95% RH |
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Temp.Coefficient | 0.03%/℃ (0 ~ 50℃) |
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Vibration | 10 ~ 500Hz, 5G 10min./1 cycle,60min. Each along X, Y, Z axes |
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Safety | Safety standards | UL60950-1 approved |
Withstand Voltage | I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC |
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Isolation Resistance | I/P-O/P,I/P-FG,O/P-FG:100M Ohms/500VDC / 25℃ / 70% RH |
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Others | MTBF | 271.9K hrs min. MIL-HDBK-217F(25℃) |
Dimension | 190*110*30mm (L*W*H) |
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Packing | 1.0kg; 20pcs/20Kgs |
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Note | 1. All parameters NOT specially mentioned are measured at 230VAC input,rated load and 25℃ of ambient temperature. |
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2. Ripple & noise are measured at 20Mhz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1uf & 47 uf parallel capacitor. |
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3. Tolerance: includes set up tolerance,line regulation and load regulation. |
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4. Please connect positive pole of input voltage with mark”L” of terminal block,connect negative pole of input voltage with mark”N” of terminal block,using DC voltage for input voltage |
Competitive Advantage:
* Ultra-thin 30mm
* Ultra-low start up temp.(- 40℃)
* synchonous rectification
* High efficiency up to 85%
* Small size,ultra-light and easy to install
* CE / ROHS
