
Racky Rax Cabinet 9U 550D - Black
RackyRax Racky Rax Cabinet 9U 550D - Black
Racky Rax Cabinet 9U 550D - Black
RackyRax 19-inch battery cabinet — Welded steel, lockable glass front, assembled — sized in rack units, not in batteries.
A rack-mount battery needs a rack, and on a domestic or light commercial job that usually means a cabinet rather than an open frame — it keeps the terminals behind a locked door and the installation looking finished.
About the RackyRax 19-inch battery cabinet
These are 550 mm deep 19-inch cabinets in welded steel, with adjustable front and rear mounting profiles, ventilation slots in the top, removable sides and a lockable glass front door. They arrive assembled.
Size them by the modules, not by the kWh. The same 12U cabinet takes five Pylontech US2000B Plus, three US3000 or three Fox ESS HV2600, because those modules are different heights.
One fixing rule applies throughout: batteries are attached using the front mounting holes only.
What does this fit?
This is the 19-inch cabinet a rack-mount battery string lives in.
These are 19-inch cabinets sized by rack units. The battery count depends on how tall the module is: a 12U cabinet takes five US2000B Plus, or three US3000, or three Fox HV2600. Batteries must be fixed using the front mounting holes only.
The products it is ordered with:
What the job needs
The details that decide whether this suits the system:
- All three are 550 mm wide and 550 mm deep; the height is what changes: 325 mm at 6U, 455 mm at 9U and 615 mm at 12U.
- 6U takes up to 2 Pylontech US2000B Plus. 9U takes up to 4 US2000B Plus or 2 US3000. 12U takes up to 5 US2000B Plus, 3 US3000 or 3 Fox ESS HV2600.
- Batteries must be attached using the front battery mounting holes only.
- Welded steel frame, adjustable front and rear 19-inch mounting profiles, ventilation slots in the top, lockable glass front door, removable sides.
- Supplied assembled and ready for use.
Where this earns its place
The cabinet is chosen by how many modules have to go in it.
RackyRax 9U 550D technical data
Questions we get asked about this inverter
How many batteries will it hold?
It depends on the module height. A 12U cabinet takes five Pylontech US2000B Plus, three US3000 or three Fox ESS HV2600.
Does it come assembled?
Yes, ready for use.
How do the batteries fix in?
Using the front battery mounting holes only.
Is the door lockable?
Yes — a lockable glass front door, with removable sides for access during installation.
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.

