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Newmar Battery Isolators
Cat. No. NM-BI

These heavy duty isolators allow charging multiple batteries automatically from one or two alternators, and prevent discharge or 'dumping” of one battery into another. Each battery is charged according to its need without overcharging. rated for 12-48 volt negative ground DC systems. feature conservatively rated diodes and a rustproof anodized aluminum heat sink case. Models are available for 70, 120 and 165 amp alternators.

Model
Alternator
Sources
Battery
Bank
Max
Amperage
Input
Capacity
Weight
Dimensions
Inches
Dimensions
Centimeters
Lbs
Kg
L
W
H
L
W
H
1-2-70
1
2
70
2
.9
3.25
4.5
3.1
8.3
11.4
7.9
1-3-70
1
3
70
2
.9
3.25
4.5
3.1
8.3
11.4
7.9
2-3-70
2
3
70
4
1.8
6.5
4.5
3.1
16.5
11.4
7.9
1-2-120
1
2
120
3
1.4
6.5
4.5
3.1
16.5
11.4
8.0
1-3-120
1
3
120
3
1.4
6.5
4.5
3.1
16.5
11.4
8.0
2-3-120
2
3
120
5
2.3
12.5
4.5
3.1
30.5
11.4
7.9
1-3-165
1
3
165
5
2.3
9
4.5
3.1
22.9
11.4
8.0
Application Note: Battery Isolators may also be used to facilitate N+1 parallel/redundant operation of power supplies. Contact factory.

Features:
• Heavy duty construction
• Rated for systems up to 48 volts DC, negative ground
• Rust-proof anodized aluminum case
• Stainless steel mounting hardware provided
• Protective covers provided for terminals

Performance Specifications
Operating temperature: -40 to +80° C
Duty cycle: Continuous rating to 50° C Derate linearly to 70% @ 80° C
Temp. rise: 95° C at full rated current (mount vertically for optimum cooling)
Voltage drop: 0.7V @ 50% load, 0.9V @ full load
Note: These battery isolators are not compatible with self exciting alternators. Please consult the manufacturer of your alternator if you are unsure of your configuration.



Model:





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