P.O. Box 1306
Newport Beach
California 92663
Phone: 714-751-0488
Fax: 714-957-1621
E-Mail: [email protected]
www.newmartelecom.com
1.0 Overview
This 1RU assembly contains numerous DC control and monitoring features that integrate power and distribution
components into a highly functional system. Built in features include: low voltage disconnect, digital monitor of voltage
and amperage, battery disconnect breaker, and alarm contacts. The digital display monitors bus voltage, battery
voltage, system output current, and low voltage connect/disconnect set points. Alarm contacts actuate on low voltage
and battery disconnect conditions. Rear panel bus bars provide ample terminal landings for easy integration with rack
mount rectifiers, distribution panels and batteries.
Figure 1: Overview - Front Panel
2.0 Materials Provided
Qty.
Description
2
Mounting ears for 19” rack mounting (Note: Contact Newmar Technical Support for 23” rack mount ears)
6
6-32 x 3/8” Phillips head screws, black-mount the two mntg. ears
1
Molex pigtail alarm connector/wire assembly (six wires)
10
¼-20 Hex Head bolt for rectifier, battery input & load connection
10
” split lock washer - one per 1/4-20 Hex Head bolt above
1
Installation/Operation Manual
3.0 Mounting
3.1
Rack Ears: One pair of rack ears for 19” rack mounting are provided. Optional 23” rack mounting ears are available
- please contact Newmar for p/n 699-3918-0, qty.2. Two mounting options are available: Flush mount and 6” off-set or
‘center mount’.
4.0 Wiring
Figure 2: Wiring - Rear Panel
See Table 1 for Recommended Wire Size
4.1
Rectifier Input: Three sets of landings for ¼” ring lug terminals are provided for rectifier Hot and RTN input connections.
Maximum total rectifier current is 100 Amps. See section 6.0 for more information on connecting Newmar rectifiers.
4.2
Battery input: One pair of landings for ” ring lug terminals are provided for connecting the battery. The ULM-100
incorporates a 100 Amp battery breaker on the front panel however for long battery cable runs we recommend a fuse or
breaker wired on the battery hot side, located as close to the battery as practical.
4.3
Load output: One pair of landings for ” ring lug terminals are provided for connecting the load or feeding a
distribution panel such as Newmar model DST-FB, DST-10, DST-20A or FDP fuse panels. Maximum load current is 100 Amps.
2
Temperature
Sensor
¼
¼
¼