The Xantrex Freedom SW Xanbus Automatic Generator Start, MPN 809-0915, automates generator operation in a Freedom SW inverter/charger system. It is designed for the new-generation Freedom SW 2012 and SW 3012 (815-2012 and 815-3012). Xantrex also lists the 24-volt Freedom SW models 815-2024, 815-3024, 815-2524-02 and 815-3524-02 as compatible. The first-generation Freedom SW 3000 (815-3000) uses a different AGS, part 809-0916. This listing is the AGS module only. It does not include a generator, an inverter/charger or the System Control Panel used to program it.

The AGS can start the generator on low battery voltage, battery state of charge, inverter load current or thermostat demand. Its dual thermostat input can respond to up to two air conditioners. Quiet-time periods block automatic starts at times you choose, such as overnight, and all start and stop settings are user-programmable. Status LEDs show the module's condition, and an emergency shutdown function is built in. The module communicates over the Xanbus CAN network through two RJ45-style Xanbus connectors and supports a maximum network cable length of 130 feet (40 meters). Xantrex lists CSA certification to CSA 107.1-01 and UL 458, including the Marine Supplement, plus FCC Part 15 Class B and ICES-003 Class B for EMC.

Plan the complete system before ordering. The Xanbus System Control Panel, part 809-0921 for the Freedom SW 2012 and 3012, is required because every AGS setting is programmed through it. Your generator must have a remote start/stop interface the AGS can operate. Xantrex states compatibility with most popular generator brands, so confirm your generator's remote-start wiring against the AGS installation guide rather than assuming every model connects the same way. You also need Xanbus network cables of suitable length; the cable contents of this package were not confirmed for this listing.

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Installation & Compatibility Guides

Plan Automatic Generator Start Around Your Freedom SW System

The AGS works only as part of a Xanbus network with a compatible inverter/charger, a System Control Panel and a remote-start-capable generator. Check each point below.

Automatic Generator Start or Manual Generator Control?

With manual control, someone has to watch battery voltage, inverter load and cabin temperature and decide when to run the generator. The 809-0915 AGS takes over that decision in a Freedom SW system: it starts the generator when a programmed condition is met and respects the quiet-time windows you set. It does not replace the inverter/charger, the System Control Panel or the generator. It coordinates them over the Xanbus network.

The AGS is worth adding if you rely on generator charging while the RV or boat is unattended or overnight, or if you need air-conditioning demand to start the generator automatically. If you start your generator by hand and monitor the batteries yourself, the System Control Panel alone may cover your needs. In either case, the SCP is required before this AGS can be configured. Compare the Xantrex Xanbus System Control Panel (SCP) for Freedom SW 2012/3012.

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Frequently Asked Questions

Which Freedom SW models is the Xantrex 809-0915 AGS designed for?
It is designed for the new-generation Freedom SW 2012 (815-2012) and SW 3012 (815-3012). Xantrex also lists the 24-volt models 815-2024, 815-3024, 815-2524-02 and 815-3524-02.
Does the 809-0915 work with the original Freedom SW 3000?
No. Xantrex specifies part 809-0916 for the first-generation Freedom SW 3000 (815-3000).
Do I need the System Control Panel?
Yes. Every user setting for this AGS is programmed through the Xanbus System Control Panel. For Freedom SW 2012/3012 systems, Xantrex lists SCP part 809-0921.
What conditions can start the generator?
Low battery voltage, battery state of charge, inverter load current and thermostat demand. The dual thermostat input can respond to up to two air conditioners.
Can I stop the generator from starting at night?
Yes. Quiet-time periods can be programmed to block automatic starts during the hours you choose.
Will it work with my generator?
Xantrex states compatibility with most popular generator brands. Your generator needs a remote start/stop interface, so confirm its wiring against the AGS installation guide before ordering.
How far apart can the Xanbus devices be?
Xantrex lists a maximum network cable length of 130 feet (40 meters) for the Xanbus network.
Is this AGS an inverter or charger?
No. It is a generator start controller. Inverting and charging are performed by the compatible Freedom SW inverter/charger.

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Need help comparing Xantrex Freedom SW Xanbus Automatic Generator Start, SKU 16523, MPN 809-0915? Share your Freedom SW part number, whether you already have the System Control Panel, and your generator's make, model and remote-start connection type. These details help us understand your selection question before you order.

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