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12, 24, 32 V; 8-95 Amps
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12, 24 V; 67-100 Amps
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12, 24 V; 8-35 Amps
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Battery Shelf and Module System

Newmar’s Powering the Network rackmount rectifier modules, 12 VDC, 24 VDC, 48 VDC, 10 to 70 amps, rackmount N+1 redundant configuration up to 6,000 watts.

Installing system back-up batteries or increasing current capacity has never been easier. The BM Series Battery Module, provides the complete solution in one low profile 2RU (3.75”) chassis. No need for sourcing and installing battery trays, interconnect cable, terminals, lugs, battery breaker, etc. The BM provides it all in one package – sealed, maintenance-free batteries included – with easy input/output plug-in connectors on the chassis rear. Multiple modules may be paralleled for increased capacity.

The system comprises a rackmount Battery Shelf and one or two 48 VDC, 24 VDC or 12 VDC Battery Modules. The shelf and modules are sold separately.

The battery modules slide easily into the shelf and are secured in place with a rear retaining pin and a front panel latch. Plug-in connector assemblies provide for quick connection to system load and/or paralleling multiple Battery Modules to meet run time requirements.


Features
• Battery Modules slide easily into shelf and plug quickly into DC power systems
• Modules and shelf fit together in low profile design – only 2RU (3.5”)
• Internal batteries are sealed, maintenance-free and are IATA and DOT certified for shipment by air
• Plug-in polarized connector assemblies enable quick, easy, plug-and-play installation and eliminate the
   danger of reverse polarity connections
• Multiple BM/BMS systems may be paralleled for increased reserve capacity
• 19” and 23” rack mounting brackets are provided for 6” forward mount configuration (3” relay rack
   rail required.) Additional brackets are available for cabinet mount, or table- top/under shelf/wall mount
   of individual modules
   without shelf assembly
• Battery on-line/off-line circuit breaker/switch controls output and provides overload protection

Mechanical
• Mounting brackets provided with battery shelf adapt for both 19” and 23” racks, 6” forward mount
   configuration
• Flush (cabinet) shelf mounting and “universal” mounting of individual modules are also available as
   installation options

Specifications
Model
Voltage
Reserve
Capacity
Circuit Breaker
Protection
Nominal VDC
Float VDC
BM-48-4
- 48
-54.4
4 Amp-Hour
15 amp
BM-24-8
+24
+ 27.2
8 Amp-Hour
30 amp
BM-12-16
+12
+ 13.6
16 Amp-Hour
50 amp

BMS-19/23 Rackmount shelf accommodates 1 or 2 Battery Modules
Over-Current Protection: Circuit Breaker/ Switch (see matrix for value)
Output Connector Rating: 50 amps maximum
Temperature Rating: -15° C to +50° C
Battery Type: Lead-Acid; Sealed, maintence-free Agm. IATA and Dot certified for shipment by air.
Typical Battery Life: 3-5 years in standby use

Internal Battery
Constant Current Performance (Amps) to 1.75 VPC
Model
5 MIN.
15 MIN.
30 MIN.
1 HR.
2 HRS.
BM 48-4
15.0
8.0
5.0
3.0
2.0
BM 24-8
30.0
16.0
10.0
6.0
4.0
BM 12-16
40.0
32.0
20.0
12.0
8.0

Case Size
Model
Inches Centimeters Weight
H W D H W D Lbs Kg
Battery Module
3.4 7.4 18.8 8.6 18.8 47.8 20 9
Battery Shelf
3.5 19/23 18.2 8.9 48.3/58.4 46.2 5 2.3