Littelfuse 48120 Cole Hersee 3-Stud 140 Amp 12-36V DC Battery Isolator

LittelfuseSKU: 48120

Sale price$88.94 Regular price$89.99 Save $1.05
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For vehicles with two batteries the Cole Hersee 48120 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 48120 are embedded to give excellent protection from adverse conditions such as contamination and vibration. The integral heat sink provides efficient heat dissipation.

  • For use with alternators that do not have an integral electronic voltage regulator
  • 140A at 12V DC, 12-36V.
  • Isolates loads of 2 batteries, allows charging from 1 source
  • Rating: 12-36V DC; 140A max alternator rating; negative ground electrical system only
  • Terminals: three 5/16" (7.9mm) studs.
  • Fully sealed
  • Size: 6 1/""L x 4 3/16"W x 3 11/32"H (152.4 x 122.2 x 84.9mm).
  • Installation: Four 9/32" (7.2mm) diameter mounting holes.
  • Weight: 6.2 lbs.



amps 140 Amps
output voltage 12-36 Volts
studs 3 Stud

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