G0493 250W for Poe Switch with CB CE Open Frame Power Supply

• Output: 250W 54-56V
• Safety Approvals: CB CE
• Dimension: 127*76.2*38±1mm(L*W*H)
• Transport Package: Box
• Specification: 195*80*40 L*W*H(mm)
• Trademark: WNL
• Model NO.: OPEN FRAME POWER SUPPLY
• Origin: China
• Production Capacity: 100000

Product Description

 

G0493 250W for PoE Switch with CB CE

 

Output: 250W 54-56V
Safety Approvals:CB CE
Dimension:127*76.2*38±1mm(L*W*H)

 

Electrical Characteristics: 

 

1.1	Input Characteristics
NO.	Items		Technical Requirement			Unit	Remark
1.1.1	Rated Input Voltage		100-240			Vac
1.1.2	Input Voltage Range		90-264			Vac
1.1.3	Frequency Range		50/60			Hz
1.1.4	Power Factor		>95%				Rated input voltage, full load.
1.1.5	Inrush Current		≤60			A	Vin=110/220Vac, cold condition.
1.1.6	Maximum Input Current		≤4.0			A
1.1.7	Efficiency		≥90%				Rated input, full load.
1.1.8	Input No-Load Power Consumption		-			W
1.2	Output Characteristics
NO.	Items			Technical Requirement	Unit		Remark
1.2.1	Rated Output Voltage			56V	Vdc		54-56V adjustable.
1.2.2	Output Voltage Range			54.5-57.5V	Vdc		54-56V adjustable.
1.2.3	No Load Output Voltage Variation △V			<0.2	Vdc
1.2.4	Rated Output Current			3.4A Natural cooling.  4.4A Fan cooling.	A		Rated power: 250W. When the output voltage raise, the output current correspondingly reduce according to the below formula: V*I=W.
1.2.5	Minimum Output Current			0	A
1.2.6	Output Peak Current			-	A
1.2.7	Load Regulation			±3%
1.2.8	Line Regulation			±1%
1.2.9	Output Ripple and Noise			≤560	mVp-p		Rated input, full load.  Made the oscilloscope with 20MHz bandwidth, output resistor side with 10uF & 104 capacitors parallel to decouple.
1.2.10	Output Overshoot at Turn On and Turn Off			±10%
1.2.11	Dynamic Response	Overshoot Amplitude		±5%			Variety load between 25%-50%-25% or 50%-75%-50%.
		Recovery Time		△t≤200	μS