DC Power Onboard offers many power accessories such as Low Voltage Disconnects, Emergency Relay/Charger, Lamp Dimmers, and Lamp Dimmer Control Panel. Battery life depends on the care you take to make sure your battery is charged at all times and the precautions you can take to be sure your battery never reaches its critical discharge.

DC Power Accessories
Low Voltage Disconnect | Emergency Relay/Charger | Lamp Dimmer

Low Voltage Disconnect-LVD

Discharging batteries beyond a critical low voltage can damage the batteries and/or load, and require a longer recharge interval. A low voltage disconnect prevents this condition.

The LVD contains a sense and control circuit housed in a compact, rugged, vinyl-clad aluminum case. It is installed in-line between the battery and the load. The unit continually monitors battery voltage and if it falls below a preset voltage threshold, the load is automatically disconnected. When batteries are recharged past another pre-set voltage the load is reconnected. Connect and disconnect points are user adjustable.

Models:
LVD 12-75 (Neg. Ground)
LVD 12-30 (Neg. Ground)
LVD 24-50 (Neg. Ground)
LVD 48-30 (Pos. Ground)

Newmar offers a complete line of DC Power Accessories designed to keep your DC power in perfect running condition. The Low Voltage Disconnect, Emergency Relay/Charger and Lamp Dimmer Unit are all a must for your DC Power needs.

Specifications
Factory set actuation voltages:

	12 VDC	24 VDC	48 VDC
Connect	12.2 VDC	24.5 VDC	49.0VDC
Disconnect	10.4 VDC	21.0 VDC	42.0 VDC

Voltage and Contact Current Ratings:
Indicated By Model Number (i.e., LVD 12-30 = 12 Volts, 30 Amps Continuous)
Dimensions (mounted vertically, all models): 5.25” High x 5.25” Wide x 3.5” Deep
Weight: (All models): 1LB.
Operating Temperature: 0-50 °C

Typical LVD Installation

Emergency Relay/Charger - ERC

The E.R.C. allows emergency battery tie-in to a radio system that is normally operated by a power supply.

Under normal conditions the radio is connected through the ERC to the power supply and the back-up battery receives only a trickle charge to keep it in peak condition.

In the event of AC power failure a relay automatically connects the radio to the back-up battery, restoring the system within one second. When AC power is restored the radio is automatically reconnected to the power supply and the trickle charge resumes to the battery.

Available in 12 or 24 VDC, 15 or 35 Amp ratings, (not ignition protected.)

Application notes:
• 1 sec. switch over delay may not be suitable for data transceivers, use instead a system where
the battery is floated on output of power supply – see Power Pac or IPS or APS.

• Trickle charge current will maintain a back up battery and will slowly restore a deeply discharged
battery. A separate high current charging source is recom- mended for deep discharge recovery.

Specifications

ERC Model	Amps		Size-inches			Wieght
ERC Model	Int.	Cont.	H	W	D	Lbs	Kg
12-15	15	10	2.25	2.875	4	1	.5
24-15	15	10	2.25	2.875	4	1	.5
12-35	35	30	3.875	2.875	4	2	.9
24-35*	35	30	3.875	2.875	4	2	.9
*Built to order

Typical Trickle Charge Current:
1.5 amps – will vary depending on power supply voltage and battery condition.
Optimal Power Supply Voltage:
12 volt systems: 13.4 - 14.0 VDC
24 volt systems: 26.8 - 28.0 VDC

Lamp Dimmer System
Adjust DC lights to ease eye strain and enhance night vision. Light intensity is easily regulated by remote panel.

Panel LDP:
5000 Ohm dimmer control panel adjusts brightness between Off and 85% of full voltage.
Black anodized aluminum panel.
Size: 3" x 3" (7.6 x 7.6 cm)

Unit LD:
100 watt capacity, for 12, 24, and 32 VDC systems. rugged anodized aluminum heat sink case.
Size: 9" x 4.5" x 2.75"-2 lbs. (22.9 x 11.4 x 7cm.-.9 Kg.)

Model: LD Panel
Control Panel

Model: LD
Dimmer only (no panel)