Product Data Sheet
DC-DC Converter Series
Non-Isolated
22-56 Vin Wide Range
13.8 Vout @ 40 Amps Peak
Key Features
Input voltage ranges: Model N2412-40 (Vin: 22-32 Vdc); Model A4812-40 (Vin: 30-56 Vdc)
Built-in Protections: Over-voltage, Over-current, Over-temperature and short-circuit protections with crowbar.
LED visual indicator features: Standby, Hiccup, CV Mode, CC Mode, Fault, and Fault-Locked.
Remote ‘ON/OFF’ connection terminal for independent control with an external ignition switch.
High quality heavy duty industrial metal construction with easy access Terminal Block screw connections
RoHS (lead free) compliant
Applications
Electrical Specifications (Non-Isolated Models)
Model
Input
Voltage
Output
Voltage
ICS Output,
(Cont./Peak)
Size
(H x W x D)
Temperature
Weight
Lbs (kg)
N2412-40
22 to 32 Vdc
13.8 ± 0.2 Vdc
32 A / 40 A
1.8 x 6.2 x 8.1
Operating -25 to +55ºC
Storage: -40 to +85ºC
2.2 (1.0)
A4812-40
30 to 56 Vdc
13.8 ± 0.2 Vdc
32 A / 40 A
ICS Output Derating N2412-40 / A4812-40
N2412: 25A @Vin=18Vdc, linear. A4812: No derating
Output Ripple / Noise
≤ 100mVp-p / ≤ 200mVp-p
Line / Load Regulation
≤ 100mV
Minimum Efficiency at Full Load
≥ 92%
Over voltage Protection Limit
15.0 Volts max
Over current Protection Limit
42.5 Amps max
Over temperature Protection Limit
70ºC max shutdown
Mechanical
Model N2412-40 (Vin: 22-32 Vdc)
Model A4812-40 (Vin: 30-56 Vdc)
ON/OFF Connection
The DC/DC Converter may be
turned on and off via an
external ignition switch.
Remove the metal jumper
between ON/OFF and VIN
“+” and then connect a wire
from the ON/OFF terminal to
the external ignition switch.
TERMINAL Connections
VO+ Vout “+”
VO– Vout “–”
VIN– (*) Battery Input “–”
ON/OFF Ignition Switch Control
VIN+ Battery Input “+”
(*) The VIN“–” terminal MUST BE
CONNECTED to either “chassis ground”
or directly to the Battery’s “–” negative
terminal. Connect VIN “–” to “chassis
ground” if the Battery’s “–” is connected
to chassis, otherwise connect VIN “–”
directly to the Battery’s “–” terminal.
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● 9 Autry, Irvine, CA 92618 ●
● (949) 458-7277 ● Fax: (949) 458-0826 ●
E-MAIL: astroncorporation@yahoo.com
Critical Peak Power Solution for 13.8Vdc Mobile Equipment
These wide range DC-DC Converter power supplies are ‘Non-Isolated’ and ideally suited for use with mobile 12/13.8 VDC
equipment. The design technology emphasizes high efficiency (92% min), tight regulation and low ripple/noise. The ICS
Peak output current is rated at 25% above maximum continuous operation for 5 minutes max with a 50% duty Cycle.
Protection Features
All models have built-in protection features including output current limiting, overvoltage protection, internal fuse
protection, and over temperature shutdown. Convection Air cooling (a fan is not required).
LED Indicator Features
The LED indicates the status of the DC-DC converter: Standby (Flashing Green), Hiccup (Flashing Amber), CV Mode
(Green), CC Mode (Amber), Fault (Flashing Red), and Fault-Locked (Red)
Easy installation, safety and reliability
These units integrate seamlessly with standard 12/13.8 VDC equipment. Secure screw-type terminal connections are
used which are easily accessible and ensure a safe and reliable installation. The chassis is FLOATING which allows the
Battery negative voltage input to be connected to either the “chassis ground” or directly to the Battery negative terminal.
LED Indicator
©Astron 2016-0706a
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