Step up a 12 VDC battery to between 24.0 and 27.5 VDC in 0.5 VDC increments (via 3 position DIP switch), or stabilize a 12 or 24 VDC power system.

Safety features include reverse input protection, low input voltage alarm, low output voltage alarm, over temperature shutdown and alarm, a dry contact alarm relay output and output overvoltage crowbar. If the input voltage exceeds the regulated output voltage, the unit simply passes the voltage through with full LC filtering and a single schottky diode drop (0.5 VDC or less). Optional features include remote panel monitoring with On/Off control.

Applications include temporarily brightening 12 volt headlights or work lights, increasing voltage into an automotive or marine ignition system for hotter spark and/or prevention of failures due to voltage drop during engine start, stabilizing 12V and 24 VDC power systems in marine, automotive or aeronautical environments and more.

FEATURES

• Vibration proof output voltage adjustment by 3 position DIP switch
• Audible & visual indicators for constant current, low input voltage, low output voltage & over-temperature
• Extremely rugged and well suited for marine and other demanding environments
• High tolerance for shock and vibration
• Ultra-quiet low EMI operation
• Current limiting protection
• Output over-voltage crowbar
• Reverse input protection
• Dry contact output fail relay
• Wide operating temperature range (-25øC to +40øC)
• 3 year parts and labour warranty

Electrical (Input)

Input Volts (DC) 10.5 - 28
Input Amps (max) 30
Input Fuse AGC 20 x 2 Amp
Noise on Input  < 25mV
Low Input Voltage Alarm 10.5 VDC
Current Limit 30 Amps in

Electrical (Output)

Output Nominal (op) 24
Output Volts (DC) Input - 1V or 24.0 to 27.5 Whichever is greater
Output Amps 27
Output Crowbar Programmed Output Volts x 1.2
Output Ripple & Noise < 25mV
Low Output Voltage Alarm Programmed Output Voltage minus 2.5 VDC
Transient Response < 1V for 50% Surge
Regulation (Line & Load) < +/- 0.5%
Duty Cycle Peak 20% for 5 min max  Continuous 100% for 24 hours per day
Efficiency > 90% @ Maximum Output

Mechanical and Environmental

Operating Temperature Range  -25 to +40øC @ Maximum Output  Derate Linearly 2.5% per øC from 40øC
Humidity 0-95øC Relative Humidity (non-condensing) with optional conformal coating
Audible Noise NONE Odb @ 3 feet
Typical Service Life  >10 years (87,600 hours)
Isolation Any Input or Output to Case 500 VDC Input to Output - Common Negative
Length 9.1 in / 23.1 cm
Width 7.8 in / 19.8 cm
Height 2.5 in / 6.4 cm
Clearance 1 Inch (2.5 cm) all around
Material Marine Grade Aluminum
Finish Black Powder Epoxy Coat
Fastenings All 18-8 Stainless Steel
Weight 4.0 lb / 1.8 kg
Connections Four contact output terminals
Warranty 3 years
Safety Approval to CSA/UL Standards Pending

The actual output current capability depends upon the input/output voltage ratio. To obtain the actual output current capability at any given input voltage, use the following formula:

Output Amps = Input Volts/Output Volts x 27
For example, at 11VDC in and 13.6 VDC out, the output current = 11/13.6 x 27 = 22.8 amps