2 IN STOCKReady for immediate dispatch
SolarEdge 8,000W Home Hub 48V - Three Phase with Backup Potential
SolarEdge 8,000W Home Hub 48V - Three Phase with Backup Potential
SolarEdge 8,000W Home Hub 48V - Three Phase with Backup Potential
SolarEdge Home Hub Inverter, three phase RWB48 — Three-phase storage on a 48 V battery, DC coupled, with whole-house backup through the Backup Interface.
A hybrid inverter does three jobs a string inverter cannot. It converts solar DC to AC; it charges and discharges a battery on the DC side, which avoids the double conversion an AC-coupled battery pays for; and when the grid fails it can island the house and keep a backup circuit alive from the battery.
About the SolarEdge Home Hub Inverter, three phase RWB48
The three-phase Home Hub does the same job as its single-phase sibling on a three-phase supply, and takes a completely different battery: the 48 V BAT-05K48, one to five modules, rather than the 400 V unit. If you take one thing from this page, take that.
The architecture is DC coupled, so PV charges the battery directly without an AC conversion round trip, and the whole array runs at optimiser-level voltage rather than at high string voltage — which is what SolarEdge mean by eliminating high voltage during installation, maintenance and firefighting.
Backup is a separate purchase (the SE-SBI-3PH Backup Interface) and it is worth knowing what it does and does not do: the changeover is specified at under 10 seconds, not under 10 milliseconds, so this is a standby supply rather than an uninterruptible one.
Which battery does this inverter take?
This inverter takes SolarEdge Home Battery 48V, BAT-05K48.
This model has a battery voltage window of 40 – 62 V, BMS communication over CAN.
This rule applies to the SolarEdge Home Hub THREE PHASE (SE5K/SE8K/SE10K-RWB48).
1 to 5 battery modules, 40 – 62 Vdc, 125 A maximum continuous, 5,000 W maximum charge or discharge, CAN communication, galvanic isolation on the battery DC/DC.
What we stock that fits this inverter:
String design, battery limits and what is in the box
The details that decide whether this unit suits the job:
- Every module needs a SolarEdge power optimiser, or a SolarEdge Smart Module with one built in. A SolarEdge inverter will not commission on a plain string of modules, and the optimiser also does the module-level monitoring and the rapid shutdown that the platform is bought for.
- Battery is the SolarEdge Home Battery 48V, BAT-05K48, one to five modules, 40 – 62 Vdc, 125 A continuous, 5 kW maximum charge or discharge, CAN. The single-phase Home Hub takes the 400 V battery instead. Ordering the wrong one is the expensive mistake on this platform.
- Backup needs the SolarEdge Home Backup Interface for the three-phase Home Hub (SE-SBI-3PH), bought separately.
- Changeover to backup is specified at under 10 seconds. Anything that cannot tolerate a ten-second break needs its own UPS.
- Backup output is lower than the on-grid rating: 4,500 VA on the 5 kW, 7,200 VA on the 8 kW and 9,000 VA on the 10 kW.
- Maximum allowed imbalance between phases in backup is 1.66 kW, 2.66 kW and 3 kW respectively.
- PV side is 900 V maximum, 750 V nominal, two MC4 pairs, up to 15 kW of modules on the 10 kW inverter.
- 907 mm tall, 317 mm wide, 192 mm deep and 37 kg, with internal and external fans at under 50 dBA. It is a two-person lift.
- Residual current detection is 300 mA with a 30 mA step detector.
Where this hybrid earns its place
The Home Hub Inverter, three phase RWB48 is specified most often for these jobs.
Things worth knowing about this listing
- Backup needs the SolarEdge Home Backup Interface for the three-phase Home Hub (SE-SBI-3PH), bought separately.
- Every module needs a SolarEdge power optimiser, or a SolarEdge Smart Module with one built in. This inverter will not commission on a plain string of modules.
SolarEdge SE8K-RWB48 technical data
Ordered with this inverter more often than anything else
A hybrid is the middle of a system, not the whole of it. These are the parts our customers add most often:
Questions we get asked about this inverter
Which battery does it take?
The SolarEdge Home Battery 48V, BAT-05K48, one to five modules. Not the 400 V battery — that is the single-phase Home Hub. They are different architectures and cannot be swapped.
Is the backup instant?
No. SolarEdge specify under 10 seconds for the three-phase Home Hub, not under 10 milliseconds. Lights, a fridge and a boiler will not care; a desktop PC or a server will reboot. Anything that must not break needs its own UPS.
What do I need for backup?
The SolarEdge Home Backup Interface for the three-phase Home Hub, part SE-SBI-3PH, bought separately.
Do I need optimisers?
Yes, one per module or a Smart Module with one built in. This is not an inverter that will run a plain string.
How much can it deliver in backup?
4,500 VA on the 5 kW, 7,200 VA on the 8 kW and 9,000 VA on the 10 kW — lower than the on-grid rating, and with a limit on how unbalanced the three phases may be.
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 hybrid inverter range, our batteries and our solar panels, or email sales@clearraysolar.com if you would like us to check a battery pairing or a string design 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.
