Transition Networks SPS-48V instruction manual Technical Specifications, Input, Output

TECHNICAL SPECIFICATIONS

Input

Input Voltage	48 VDC
Inrush Current	0.20 A (peak cold start)
Hold-Up Time	20 msec minimum at full load and nominal input
	voltage
Isolation Voltage	(Dielectric withstand) Meets IEC 960 for one minute.
	1,500 VAC:	Output/Input
	500 VAC:	Input/Safety GND
	500 VAC:	Output/Safety GND
Output
Output Voltage	12 VDC
Output Current	0.8 A
Line Regulation	±0.5 % of all output within specified range
Load Regulation	±1.0 % at 20 % load to full-rated load
Cross Regulation	±1.0 % maximum on any output change from 50 % to
	100 % rated load
Transient Response	Output voltage returns in less than 3 msec following a
	50 % load change
Over Load Protection	(OLP) When the average power rating exceeds 125%-
	150% of maximum power, output voltages reduced to
	a safe dissipation level; protects against short circuit of
	any output.
Over Voltage Protection (OVP) 124 % ±8 % on output.
Over Circuit Protection	Withstands a continous short without damage; returns
	automatically to regulation upon removal of short.
No Load Operation	No damage to power supply when operating at no
	load.
Overshoot Protection	No voltage spike at power-on, power-off, or power
	failure.

4.Connect +48-VDC terminal to 48-to-12 VDC External Power Supply terminal block control marked “+”. Turn terminal screw clockwise to secure.

5.Connect -48-VDC terminal to 48-to-12 VDC External Power Supply terminal block control marked “-”. Turn terminal screw clockwise to secure.

6.Connect ground terminal to 48-to-12 VDC External Power Supply terminal block control marked “chassis ground”. Turn terminal screw clockwise to secure.

+

-

GND

7.Ensure that external power source is powered ON.