P.O. Box 1306
Newport Beach
California 92663
Phone: 714-751-0488
Fax: 714-957-1621
E-Mail: techservice@newmarpower.com
www.newmartelecom.com
MATERIALS PROVIDED
The MDP-25.0 is supplied with the following materials:
(4) # 8 ring lugs for 8 gauge wire
(1) Terminal block cover (attached)
(1) Installation/Operation Manual
Check to see that these have been included with the packaging. For any missing items, please contact Factory.
INSTALLATION
Mechanical:
Locate a flat surface close to the power line that feeds the electronics. For best results, the MDP should be within 24” of
the critical electronics. The case need not be grounded, so it is acceptable to mount the unit on wood or metal. Securely
mount the unit in any orientation, however horizontal is best.
Note:
In order to ease future battery replacement, it is
recommended that the front of the MDP remain un-obstructed.
Power:
Input wiring:
1) Remove both Input and Output fuses on MDP (ATC-30 x 2) before installation. Remove terminal block cover.
2) Turn off the power on the input wires by disconnecting the battery or shutting off the appropriate circuit. Note, the MDP
functions as an uninterruptable power source. If electronics are wired directly to the MDP output and the primary
feed voltage to the MDP is via an ignition switch, when the switch is turned off the MDP will continue to power the
load until its internal battery reaches a low voltage disconnect point.
3) Identify the positive and negative lead in the power line and cut at an appropriate location. Use the lugs
supplied, wire the input to the MDP – note it is recommended that the input be fused at the source, see
illustration below.
Output wiring:
Using the table below, select the proper wire size for your installation and attach to terminal block. Four rings lugs for 8
AWG wire size are included with the MDP-25.0. Replace terminal block cover to prevent accidental shorting of the
terminals.
3
(+)
(-)
DC Input
(Connect to fused,
unswitched DC source
or one which always
stays on)
To Critical
+12V loads
To Critical -12V
loads
Circuit Breakers / Fuses
(Optional)
Ground
POSITIVE
GROUND
AMPS*
CABLE LENGTH (feet)
10’
15’
0 - 10
AMPS
12 AWG
10 AWG
10 - 25 AMPS
8 AWG
8 AWG
* Current draw of Electronics being powered.
>
Fig. 1: Input and Output Wiring
