DC Power Onboard with Newmar’s DC Power Conditioners. Newmar’s power array of dc conditioners provide stabilizing voltage during engine crank, voltage stabilizers with Isolated DC-DC converters, electronic noise filters and automatic power selectors. Whether there is a need for seamless redundant power system tie-in for critical electronic loads, the need for VHF and GPS fish finders to stay on during engine crank, or battery back-up for sensitive electronic devices.

DC Power Conditioners
StartGuard | NAV-PAC| Mobile Data Power System

StartGuard™
The abrupt DC system voltage drop that accompanies engine starting can cause microprocessor-driven communication and navigation electronics to “dump” programmed memory.

StartGuard solves this problem by providing supplemental voltage to sensitive electronics while the engine is cranked. It contains a sealed rechargeable battery which is switched on-line to electronics when the starter switch or solenoid is engaged. When the engine is running StartGuard automatically goes off-line and the internal battery is recharged by the alternator.

Specifications
Input Voltage: 13.8 - 14.8 VDC nominal, 15.5 VDC max.
Relay Activation Input Voltage: 7-15 VDC
Output: 20 amps max.
Battery:
12 VDC, sealed rechargeable,
5 - 7 year life (typical)
5 amp-hour capacity
Certified by DOT and IATA for shipment by air
Replacement battery P/N: 591-0412-0
Back-up Capacity (Fully Charged): (See matrix below)

Model	Input	Back-Up Capacity		Dimensions						Weight
		1 Minute	2 Minutes	Inches			Centimeters			Lbs	Kg.
NS-12-20	13.8-14.8 VDC Nominal 15.5 VDC Max	20 amps	15 amps	H	W	D	H	W	D	5.5	2.5
				8.25	4.9	3.5	20.1	12.5	8.9

NAV-PAC®
Marine communication/navigation electronics such as programmable data transceivers, GPS and other microprocessor-controlled devices require clean and steady DC input power. Their sensitive circuitry is highly vulnerable to voltage drop from engine start, noise and line spikes from alternators and motors, and conducted noise from various other electronic devices. NAV-PAC prevents these conditions from affecting electronics.

• Prevents voltage ”drop-out” to electronics
during engine start
• Absorbs line "spikes"
• Filters out electrical interference
• Provides supplemental voltage/battery
back-up for up to 15 min.
• Remote monitor panel included. (12V unit only)

U.S. PATENT #: 5172292

Model: NP-24
Input Voltage:27.6-29.6 VDC nominal, 30 VDC max.
Output: 15 amps Max. @ 24 Volt
Back-Up Power: 12 & 24 Volt Models
7 Amps for fifteen (15) minutes
10 Amps for eight (8) minutes
15 Amps for two (2) minutes
20 Amps for one (1) minute
Battery: Sealed Rechargeable 5.0 Amp-Hour, 5-7 years typical life, can be replaced. Low-voltage disconnect circuit
protects battery from total discharge. Certified by DOT and IATA for shipment by air. Replacement battery P/N: 591-0412-0
Noise Filtering: Audio through 200 MHZ
Voltage Spike Protection: Transient energy capability; 100 Joules, 4,000 amps Max (8 x 20 micro seconds)

Size

Model	Inches			Centimeters			Weight
Model	H	W	D	H	W	D	lbs.	Kg.
NP-12	5.25	6.2	7.4	13.3	15.7	18.8	5.9	2.7
NP-24	6.0	6.75	7.5	15.25	17.14	19.0	8	3.6

Panel Dimensions: 3.5” W x 2” H (8.9 x 5.1 cm)

Mobile DC UPS
Mobile Data Power System

The Mobile Data Power, model MDP-25, is a DC UPS that solves the common problem of lengthy reboot sequences, system crash, data and hard drive corruption in mobile computer work stations due to a low voltage and loss of power as a result of intermittent or poor vehicle battery condition. In addition, the MDP provides a low voltage output warning signal to terminals (such as Motorola® MW 800 series work stations) allowing orderly automatic shutdown of the powered device, protecting data and preventing hard drive corruption.

Utilizing a high speed sensor circuit, when primary vehicle voltage drops below a critical point, the internal 9AH battery is switched on-line in milli-seconds, assuring no interruption to the powered device(s). The MDP-25 has an internal 3 step, temperature compensated charger that maintains its reserve battery at full charge, ready to go on-line when a fault or degradation of primary vehicle battery occurs. This functionality assures continued operation of mobile computers under a variety of adverse vehicle battery conditions.

Housed in a rugged aluminum case and heavy duty mounting plate, the unit is designed for installation in emergency vehicles, service and other utility vehicles that require a steady source of voltage for mobile computers, work stations, and electronics.

Download PDF Data Sheet

Protects mobile computers against system crash, lengthy reboot
sequences, and loss of data due to:
• Voltage dip during engine cranking
• Voltage drop and decay due to loading high power accessories, and aging batteries
• Voltage loss due to cycling of master disconnect switch and battery failure.

Provides supplemental voltage in milli-seconds to mobile data devices
when low vehicle battery is sensed.
• Immediately augments power to electronics when needed and fully powers electronics
if critical low voltage condition persists.

Built-in Multi-Stage filter provides clean power required by mobile electronics
• Eliminates noise and interference
• Transient protection prevents damage to sensitive circuitry due to voltage spikes

Provides output warning signals to mobile computers (such as Motorola®
MW 800 series work stations)
• Initiates low voltage shut down sequence in mobile computer, protecting data and hard drive.
• Alerts when system is operating on battery back-up

Internal 3 stage, temperature compensated charger maintains back-up
battery in fully charge stand-by state.
• Provides isolated power source, 12 volts @ 5 amps for 60 minutes, 10 amps for
20 minutes, 25 amps for 8 minutes
• Battery easily accessed by front panel door

Model MDP-25
Input range: 10.2V – 15.5V (start-up @ 11.5V)
Standby Current Draw: <50mA
Output: 12 VDC
Maximum Load Current: 25 amps

Battery Connect Sequences:
• Internal battery switches online when vehicle battery voltage = 10 V ± 1 V
(Vehicle battery disconnects after 3 seconds if low voltage condition persists)
• Vehicle battery reconnects @ 11.5 V ± 1 V
• Internal Battery Low Voltage Disconnect: < 9.6 V

Battery Specification:
• 9 AH, sealed Lead Acid – typical life 5 years, easily replaced via front panel access door.
• Power delivery @ > 10.2 volts @ 25°C
   • 5 amps @ 60 minutes
   • 10 amps @ 20 minutes
   • 25 amps @ 8 minutes

Output Signals for terminals (such as Motorola® 800 series work stations):
• When imminent Voltage decay to 11.5 VDC is projected (adjustable set point)
• On Charge/Discharge

Internal Battery Charger:
• Charge Current: 2 amps max., three-stage
(Bulk, Absorption, Float)
• Temperature Compensated

Temperature rating:
Operating 0 – 50° C

Mechanical:
• Aluminum case with access door for easy removal of battery
• Heavy duty mounting suitable for commercial vehicle use
• Size: 5.75” H x 6” W x 8.5” D; (14.6 x 15.24 x 21.59 cm)
• Weight: 9.4 lbs.

Options:
• Remote LED indicator panel
• Power OK
• Operating on Back-Up


Extreme vibration mounting kit The Extreme Vibration Mounting Kit is available to protect NEWMAR power converters from the extreme stresses of shock and vibration when mounted on high–vibration vehicles. The kit (pictured here) replaces the standard vibration kit provided with the unit and fits into the unit's mounting flange to act as a "super shock absorber" for electronics in high-vibe applications. It is available to fit all NEWMAR units from 2 to 70 lbs. Specify KIT–L for units which weigh 2–15 lbs. and Kit–H for units which weigh 16-70 lbs.