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eduard asked

What is the max. current through the Energize terminal of the battery isolator 120-2 AC?

Hello all,

I use the battery isolator 120-2 AC to charge redundant batteries (24V, 150Ah each) with an alternator. To ensure the excitation of the alternator, the isolating diodes have this special Energize connection.

According to the datasheet, the Energize is a current-limiting connection for start-up excitation. What does current limiting mean? How much current can flow max.

And does this current only flow to the input connector into the alternator or can the current from Energize also flow to one of the output connectors?


The line to the Energize connector is fused with a 6A fuse. But it keeps blowing out. Therefore the questions.


As an additional note to Victron, please provide more info in the datasheets.


Thanks and greetings

isolatorsdc isolators in parralell systemac-out-2
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Alexandra avatar image Alexandra ♦ commented ·
@Eduard

Are you using argo diode argo fet? A cyrix battery isolator?

And what are you fusing with a 6A fuse when its rating is 120A?

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eduard answered ·

Hey @Alexandra,

I use the Argo Diode 120-2 AC.

With the 6A fuse is the Energize-terminal fused. In the description the Energize-terminal is a current limiting connection. To how many amperes is the current limited?

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Alexandra avatar image Alexandra ♦ commented ·

Are you sure there is not a mistake in wiring or a short or something?

It is a signal wire that runs through an ignition so not high continuous amperage. Are you using a slow blow fuse?


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Alexandra answered ·
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