1 IN STOCKReady for immediate dispatch
Fox AC 10.0kW Three Phase Charger Inverter
Fox ESS Fox AC 10.0kW Three Phase Charger Inverter
Fox AC 10.0kW Three Phase Charger Inverter
Fox ESS AC3 Series charger inverter — Adds a Fox ECS2900 stack and remote monitoring to a three-phase system that already works.
An AC-coupled battery inverter exists for one situation: there is already a working solar system, and replacing the inverter to add a battery would mean throwing away something that works. It sits on the AC side instead, charges the battery from the existing array or from the grid, and leaves the original inverter alone.
Please read before ordering
About the Fox ESS AC3 Series charger inverter
The AC3 is the three-phase version, rated at 10 kW. It works with Fox ECS2900 high-voltage batteries — one master plus a minimum of two slaves and up to six — and is plug-and-play with built-in fuse protection.
High voltage on the battery side gives the best round-trip efficiency for a retrofit, and the unit is IP65 for outdoor installation.
Monitoring is through the Fox smartphone app or the web portal.
What does this work with?
This is a three-phase AC-coupled battery inverter: no PV input, a Fox ECS2900 high-voltage stack on the DC side.
The battery is a Fox ECS2900 stack — one master and a minimum of two slaves, up to six slaves. The FE-3PH-METER-CT is required for full operation, and there is no PV input: the array stays on the inverter it is already on.
Battery, meter and site
The details that decide whether this suits the system:
- No PV input — this is an AC-coupled retrofit product.
- Battery is the Fox ECS2900 high-voltage range: one master plus a minimum of two slaves, up to six slaves.
- The FE-3PH-METER-CT is required for full operation and is ordered separately.
- IP65 and suitable for outdoor installation, with built-in fuse protection.
- Remote monitoring through the Fox app or web portal.
Where this earns its place
The AC3 Series charger inverter is specified most often for these jobs.
Things worth knowing about this listing
- This product requires the FE-3PH-METER-CT for full operation. It is a separate order.
- The battery is a Fox ECS2900 stack: one master plus a minimum of two slaves, up to six slaves.
Fox ESS AC3-10.0-E technical data
Ordered with this more often than anything else
A storage system is never one part. These are the ones our customers add most often:
Questions we get asked about this inverter
Can I connect an array to it?
No. The AC3 is AC coupled, so the array stays on the inverter it is already on.
What battery does it need?
A Fox ECS2900 stack: one master and at least two slaves, up to six slaves.
Does it need a meter?
Yes, the FE-3PH-METER-CT, and it is a separate order.
Can it go outside?
Yes, it is IP65 rated.
How is it monitored?
Through the Fox smartphone app or the web portal.
Documents, advice and trade pricing
Every datasheet, certificate, installation manual and warranty document we hold for this product is in the Documents tab below. See the rest of our storage range, our hybrid inverters and our batteries, or email sales@clearraysolar.com if you would like us to check a pairing before you order.
Build your complete solar system
Everything you need in one place.
- Inverters
- Batteries
- Mounting Systems
- Cabling & Accessories
- Protection Devices
Delivery times vary by region:
- UK — 1-2 business days
- Highlands & Islands — 1-2 business days
Returns accepted within 14 days of delivery for unused items in original packaging.
