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Connectors XT-90

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    Connectors XT-90

    Product Link: XT-90 Connectors at

    The XT-90 connector is a 2 conductor keyed connector, meaning it can only be assembled one way preventing reverse polarity connections. It is rated for 90 amp duty ,designed to handle 90 Amps continuously without exceeding 80°C. XT-90 connectors consist of a male and female pair, the protruding connectors are on the male half and the recessed connectors are on the female half. The outer plastic shield does not affect the gender assignment of connectors.

    Luna products use this connector for the output current from their batteries, with the female connector being attached to the battery and the male connector attached to the controller. Luna sells only brand name XT series connectors, there are a lot inferior products in the marketplace so always buy from a trusted source to insure the performance is as designed.

    XT-90 connectors are available in 2 colors, yellow and black in addition to with or without attached pigtails.

    A variant of the XT-90 is the XT-90S , with the S designating spark suppression. It is highly recommended to use the spark suppression model on your primary battery connection. Connections made without this feature can arc upon attaching or detaching, leading to deterioration of the contacts over time.

    XT-90 connectors are available in various quantity packages and as part of adapter cables (i.e. XT-90 to Anderson power-pole) XT-90S connectors are available in yellow only.

    XT-90 solder lugs are ideally sized to accept 10 AWG wire , with silicone jacketed high strand count wire being the preferred type for this application. Click image for larger version  Name:	xtsizes.png Views:	2 Size:	481.0 KB ID:	8599
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    Will a regular XT 90 work with an female XT 90 antispark?
    Yes it will. Only the female is antispark there is no such thing as a male antispark XT 90. The thing that makes the XT 90 antispark is resistors, these resistors only exist in the female part of the connector.

    So how does it work?
    The below pictures show a closeup of an XT90-S without the pigtails.

    Click image for larger version

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    The green is the resistor. This basically allows a small amount of electricity to come in so when you are plugging in halfway enough electricity is coming in so it does not spark when plugged in the rest of the way.

    Click image for larger version

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    Note: Do not leave the connector plugged in halfway, using high power while plugged in halfway will heat up and melt the resistor. While it may be enough to power on your system, you want to make sure

    This is plugged in partway where only the resistor is connecting
    Click image for larger version

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    This is plugged in all the way.
    Click image for larger version

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    Last edited by paxtana; 04-20-2017, 07:57 AM.