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High Efficiency 1U AC to DC Power Supply
(These instructions are intended for use by a technician familiar with electronic products)
Integrated Low Voltage Disconnect
Autorange Input Voltage 90 to 264 VAC
Remote control ON/OFF
DC-OK TTL signal
Short Circuit / Overload / Over Voltage / Over
Temperature Protection
Manual Battery Disconnect Switch
3 year warranty
DESCRIPTION
The HE1U-1248-BBLVD is a Heavy Duty AC to DC 750 Watt Power Supply with a low voltage disconnect in a 1U chassis. The
HE1U-1248-BBLVD comes with power factor correction, and four layers of protection against overload, over voltage, over temperature,
and short circuit. This model also comes with a manual battery disconnect switch, internal power supply ON/OFF remote control, and
DC-OK. The HE1U-1248-BBLVD comes with a 3 year warranty.
SPECIFICATIONS
Output Voltage ....................................................................................................................................................................... 55.6 VDC
Output Voltage Tolerance .......................................................................................................................................................... +/- 1 %
Output Amperage ........................................................................................................................................................... 13 Amps max.
Maximum Power, continuous ................................................................................................................................................ 750 Watts
Maximum Ripple and Noise ........................................................................................................................................ 150 mV p-p max
Input Voltage, Autoranging ............................................................................................................................................. 90 to 264 VAC
Input Frequency Range ........................................................................................................................................................... 47-63 Hz
Maximum AC Current ............................................................................................................. 8.2 Amps/115 VAC; 3.9 Amps/230 VAC
Typical Efficiency........................................................................................................................................................................... 92 %
Max Inrush Current, single cycle ........................................................................................... 25 Amps / 115 VAC, 40 Amps / 230VAC
Short Circuit Protection ................................................................................................................................. Constant Current Limiting
Overload Protection (operates) ................................................................................................................................. typical 105-125 %
Line Regulation ....................................................................................................................................................................... +/- 0.5 %
Load Regulation ...................................................................................................................................................................... +/- 0.5 %
Over Temperature ........................................................................................................................ >195 F (90 C) auto output shutdown
Rise Time following ON ............................................................................................................................................................... 50 mS
Hold Time following OFF ............................................................................................................................................................. 16 mS
Working Temperature Range ............................................................................................................. -22 F to +158 F (-30 C to +70 C)
Storage Temperature ......................................................................................................................... -40 F to +185 F (-40 C to +85 C)
Withstand Voltage .................. 3 KVAC @ 10 ma (I/P-O/P)/1 min, 2 KVAC @ 10 ma (I/P-FG)/1 min, 500 V @ 10 ma (O/P-FG)/1 min
Dimensions ...................................................................................................................................................... 1.75" H x 19" W x 14" D
Weight ......................................................................................................................................................................................... 8.4 lbs
HE1U-1248-BBLVD
Owners Guide
1
of 5
August 19, 2016
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Summary of Contents for DuraComm HE1U-1248-BBLVD
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Page 1: Specifications
DESCRIPTION The HE1U-1248-BBLVD is a Heavy Duty AC to DC 750 Watt Power Supply with a low voltage disconnect in a 1U chassis. The HE1U-1248-BBLVD comes with power factor correction, and four layers of protection against overload, over voltage, over temperature, and short circuit. -
Page 2: Front Panel Layout
BATTERY BACK UP & CHARGER Auto-revert to Battery or Power Supply ..............provided by dual Shottky diode in OR configuration Maximum Output Current in Battery Mode ..................40 Amps (limited by Shottky diode) Maximum Charge Voltage ..............................55.6 VDC LOW VOLTAGE DISCONNECT with RELAY Maximum Interrupt Current / continuous current ....................... - Page 3 INSTALLATION BLOCK DIAGRAM DC-OK GND 20.84mm RC+ RC- (Shown with factory jumper for PS U ON) HE1U-1248-BBLVD Remote Control and DC-OK Between RC- and RC+ Output Status Switch Closed PSU ON Switch Open PSU OFF Between DC-OK and GND Output Status...
- Page 4 CONDUCTOR PRETREATMENT All kinds of copper conductors can be clamped without treatment. DO NOT solder tin stranded conductors. The solder yields and fractures under high pressure. The result is increased contact resistance and excessive temperature rise. Additionally, corrosion has been observed due to the fluxes. Notch fractures at the transition from the rigid tinned part to the flexible conductors are also possible.
- Page 5 DuraComm reserves the right to change, alter, or improve the specifications of its products at any time, and by so doing, incurs no obligation to install or retrofit any such changes or improvements in or on products manufactured prior to inclusion of such changes.
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