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July 12, 2018

24 DC Input 48V battery chargers for power plants and electric vehicles

These 48 volt chargers can be used in 24 volt solar, vehicle, and generator systems to charge 48 volt batteries and provide power for 48 volt lighting systems, audio equipment, electric seats, windshield washers and other standard automobile electric equipment.
Note: all the models below have conformal coated electronics for operation in marine environments.
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Part Number
and Price
Allow up to 14 days for shipping
Allow up to 14 days for shipping

Allow up to 14 days for shipping
Country of Origin Canada, NAFTA eligible
Nominal Input Voltage 24VDC
Input Voltage Range 20VDC to 35VDC
Input Amps Max 18.7 37.9 Amps 66.7 Amps
Absorption Voltage 57.60V 57.60V 57.60V
Float Voltage 54.40V 54.40V 54.40VDC
Output Voltage Adjustment ±1V typical
Max Output Current(s) 5 Amps 10 Amps 20 Amps
Transition current 0.75 Amps 1.5 Amps 3 Amps
Duty Cycle 100% rated power 24 hours a day
Current Limiting? Yes Yes Yes
Over Temperature shutdown? Yes Yes Yes
Short Circuit Protection? Yes Yes Yes
Reverse Polarity Protection? Yes Yes Yes
Stages 2 or 3 user selectable
Output Overvoltage Crowbar? Yes Yes Yes
Input Under voltage Shutdown? Yes Yes Yes
Output Crowbar Trigger Voltage 63.9V ±2 Volts
Dry Contact Output Fail Relay? Yes
Temperature Compensated Charging? Yes Yes Yes
Can be left Permanently Attached? Yes Yes Yes
Temperature Compensation Schedule -120mV/°C
Operating Temperature Range -25°C to +40°C
Operating Temperature Range with Derating -25°C to +50°C
Derating 2.5% per °C up to +50°C
Efficiency at maximum output >75 % >75 % >80 %
Line Regulation <±0.5%
Load Regulation <±0.5%
Transient Response <2V for 50% surge
Switching frequency 60 kHz
Output ripple noise <25 mV rms <25 mV rms <50 mV rms
Indicators Audio and visual indicators for constant current, low input voltage, low output voltage, over temperature. Dry Contact output failure relay.
Input Fuse 15A MDA 3A MDA 10A MDA
Output Fuse 10A AGC ATC 25 20 x 2 ATC
Input Connection cable cable cable
Weight 3.4 Kg (7.5 lbs) 3.4 Kg (7.6 lbs) 5.5 Kg (12 lbs)
Connections 4 contact screw terminal
Protection Over Voltage , Over current, Short Circuit , Reverse Polarity , Over Load Over Voltage , Over Current, Short Circuit , Reverse Polarity , Over Load
Isolation Fully isolated:
>1500 volts isolation from case to any input terminal, >500V isolation between case and any output terminal, >1500 Volts isolation input to output. Transient voltage suppression.
Audible Noise None None None
Typical service life 87000 hours 87000 hours 87000 hours
Warranty 3 years 3 years 3 years
Approvals UL458 & CSA Pending UL458 & CSA Pending UL458 & CSA Pending
Dimensions 244 x 208 x 64 mm
(9.6 x 8.2 x 3.5 inches)
368 x 251 x 110 mm
(9.6 x 8.2 x 3.5 inches)
368 x 251 x 127 mm
(14.5 x 9.9 x 5 inches)
Drawings Click Here for Drawing Click Here for Drawing Click Here for Drawing

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Orem Utah 84058

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Lund Instrument Engineering, Inc. All rights reserved. by Mark W. Lund

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