Cole Hersee 48092 4-Stud 90 Amp 12 Volt DC 12-36V Battery Isolator

LittelfuseSKU: 48092

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Description

For vehicles with two batteries the Cole Hersee 48092 isolator electrically isolates the batteries to prevent the battery with the higher charge from draining into that with the lower charge.

Both batteries can be charged simultaneously from one source. The electronic components of the 48092 are embedded to give excellent protection from adverse conditions such as contamination and vibration. The integral heat sink provides efficient heat dissipation. The amp rating of each item is the maximum alternator rating. Most alternators on new vehicles have an integral electronic voltage regulator that requires the use of the 4-stud battery isolator. The small 4th stud is for connection to a circuit switched by the ignition switch. The newer alternators were first introduced by Delco and are therefore sometimes called "Delcotron-type alternators". A 4-stud battery isolator can be used with older pattern alternators (in this case the 4th stud will remain unconnected), but a 3-stud battery isolator cannot be used with the Delcotron-type alternator. Battery isolators also have a "per leg" rating which indicates the maximum current it can deliver to either battery. All Cole Hersee battery isolators have a per leg rating equal to half the alternator rating. Thus the 48092 with a rating of 90A has a per leg rating of 45A per leg.

  • For use with Delcotron-type alternators
  • 90A at 12V DC, 12-36V
  • Isolates loads of 2 batteries, allows charging from 1 source
  • Rating: 12-36V DC; 90A max alternator rating; negative ground electrical system only
  • Terminals: Three 1/4" studs and one #10 stud
  • Fully sealed
  • Size: 6 1/2"L x 3 1/4"W x 2 13/16"H (165.0 x 82.6 x 71.0mm).
  • Installation: Two 9/32" (7.2mm) diameter mounting holes.

 

Specifications

amps 90 Amps
output voltage 12-36 Volts
studs 4 Stud

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