
Tesla Accessory Pack for AC Powerwall -FREE ISSUE PART with Powerwall Packages
Tesla Accessory Pack for AC Powerwall -FREE ISSUE PART with Powerwall Packages
Tesla Accessory Pack for AC Powerwall -FREE ISSUE PART with Powerwall Packages
Tesla AC Powerwall Accessory Pack — The wiring parts that ship beside the Powerwall rather than inside it.
An AC Powerwall arrives without the parts needed to wire it, because they will not fit in the battery box. They come in a separate UK accessory pack, and the battery cannot be commissioned without it.
Please read before ordering
Please be aware that this item is free of charge when purchased alongside the Tesla Powerwall. To get this part at no cost, please see our package deals.
Powerwall and Accessory Pack - TES-PWRWALL-ACC
Single Phase Package - TES-PWRWALL-PACK
Three Phase Package- TES-PWRWALL-3PH-PACK
About the Tesla AC Powerwall Accessory Pack
The pack holds the wiring compartment cover and its four screws, a 4-pin terminal block connector, a second 4-pin connector carrying the 120-ohm terminating resistor, the AC power harness, two Wago 2-position lever nuts, a 32 mm and two 25 mm reducing washers, a 35 mm rubber grommet and a drillable threaded cable gland.
One pack goes with every Powerwall battery, free of charge, when the two are bought together. The second listing here is the same kit sold as a paid spare, for when the original parts have been lost or damaged.
What does this fit?
This is the set of UK-specific parts an AC Powerwall cannot be commissioned without.
Every AC Powerwall needs one of these packs. It is supplied separately because it does not fit inside the battery box, not because it is optional — without it the battery cannot be wired up and will not work.
The products it is ordered with:
What the job needs
The details that decide whether this suits the system:
- Contents: wiring compartment cover with 4 screws; 4-pin terminal block connector; 4-pin terminal block connector with 120-ohm terminating resistor; AC power harness; 2 × Wago 2-position lever nuts; 32 mm reducing washer; 2 × 25 mm reducing washers; 35 mm rubber grommet; drillable threaded cable gland.
- One pack per Powerwall battery. The terminating resistor connector matters on multi-battery installations.
- The free-issue pack is free of charge only when it is bought alongside a Powerwall battery, one per battery.
- Order the spare pack only if a spare is genuinely needed or the original parts were lost.
Where this earns its place
The AC Powerwall Accessory Pack is specified most often for these jobs.
Things worth knowing about this listing
- This part is free of charge only when it is sold together with a TES-POWERWALL battery part — one per battery only.
Tesla Free issue pack technical data
Questions we get asked about this inverter
Is this optional?
No. The AC Powerwall cannot be wired without it. It ships separately only because it does not fit in the battery box.
How many do I need?
One per Powerwall battery.
Which of the two should I order?
The free-issue pack, alongside the battery. The spare pack is a paid replacement, for when the original parts are lost.
What is the 120-ohm connector for?
It terminates the communications bus, which matters once more than one battery is on the system.
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.
Stocked lines ordered before 2pm go out for next-day delivery. UK mainland is typically 1-2 business days, with the Highlands and Islands taking a little longer.
Unused items in their original packaging can be returned within 14 days of delivery. Get in touch first and we'll arrange collection or send a return label.
Yes. Installers get trade rates, and pallet or project quantities are quoted individually - contact us with your requirements.
Prices are displayed ex VAT with the inc VAT figure alongside, so trade customers see the number they work from and everyone can check the total.
Send us the roof layout, the output you're targeting and any existing equipment, and our team will spec a compatible system and flag anything needing G98 or G99 notification.
Larger orders ship palletised on a tail-lift vehicle. Someone needs to be on site to receive it, and delivery is kerbside unless arranged otherwise.
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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.

