Battery Management Wire & Cable 3-Stud Battery Isolator 4-Stud Battery Isolator BATTERY ISOLATORS • Designed for vehicles and equipment with multiple batteries – one for starting the engine and another for powering accessories • Prevents a battery with a higher charge from draining into a battery with a lower charge • Allows both batteries to be charged simultaneously from one source • For use in 12-36V DC negative ground systems • Electronic components are embedded for protection from contamination and vibration • Integral heat sink provides efficient heat dissipation • Offered in 3 or 4-stud styles • 4-stud styles comes with a yellow 16 ga GPT 72” wire lead for connection to alternator CIRCUIT BREAKERS See circuit breakers on page 131. Stock No. 77053 77054 77056 Isolator needed in newer cars and equipment with a “Delcotron-type” alternator. The small 4th stud on the Battery Isolator is for connection to the ignition switch circuit. Number of Studs 3 3 4 Amps 90 140 140 Stud Size 1 ⁄ 4" 5 ⁄ 16" Mounting Holes 2 holes at 9 ⁄ 32" 4 holes at 9 ⁄ 32" 4 holes at 9 ⁄ 32" Dimensions 6 1 ⁄ 4"L x 3 1 ⁄ 4" W x 2 3 ⁄ 16" H 6 1 ⁄ 4"L x 4 3 ⁄ 16" W x 3 11 ⁄ 32" H 6 1 ⁄ 4"L x 4 3 ⁄ 16" W x 3 11 ⁄ 32" H SMART BATTERY ISOLATORS • Smaller, lighter and less heat generated than standard battery isolators • Works with all alternator types • Reduces charging system workload by not connecting auxiliary battery until primary battery is charged to 13.2V • Allows bi-directional charging from alternator or from 185°F (85°C) -40°F (-40°C) Stock No. 77050 77051 9-16V SAE J1455 SAE J1113 Stock No. 77050 Amps 85 200 Call Toll Free 1-800-328-2724 email: sales @waytekwire.com ® ® 111 Cable Ties Fuses & Circuit Breakers Battery Management shore/campground charging components • LED status indicator • Optional start assist – connect to a momentary switch that will allow the auxiliary battery to assist the starting battery • 5 ⁄ 16" x 24 studs • IP 66 Switches & Relays Lights & Accessories Heat Shrink Products Tapes & Chemicals 3 – 5 ⁄ 16" 1 – #10 Protection Products Clamps & Clips Wire Coverings Tools Terminals & Connectors