HYDRA
Hydra Cubus
7.4 kW socketed wallbox with a Type B RCD and O-PEN protection in the box, so the electrician does not add them downstream.
From
£354
Hardware RRP · installation quoted separately
| Output | 7.4 kW |
|---|---|
| Cable | Untethered |
| App | Yes |
| OCPP | Yes |
| Load balancing | Yes |
| Solar diversion | Yes |
| Tariff APIs | Hydra app |
| OZEV residential | Eligible where the grant still applies |
| IP rating | Not stated |
| Warranty | 3 years |
| Manufacturer price | From £354 |
| Last verified | 2026-09-22 |
Where to buy: https://www.on-ev.com/products/hydra-cubus
Related guides and comparisons
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Questions about the Hydra Cubus
Is the Hydra Cubus tethered or untethered?
The catalogue lists it as Untethered.
Does the Hydra Cubus support solar diversion?
Yes. The catalogue marks it for solar diversion.
What output does the Hydra Cubus have?
The catalogue lists 7.4 kW.
Is the Hydra Cubus price installed?
The From price is hardware RRP. Installation is quoted separately.
Does the Hydra Cubus support load balancing?
Yes. The catalogue marks it for load balancing.
Want this fitted?
Send an enquiry with your car, this charger if it’s the one you want, and roughly how far the wall is from your fuse board.