Description
xHoymiles HMS-800-2WB 800W Dual MPPT Plug-In Solar Microinverter with WiFi and 5m UK Cable
The Hoymiles HMS-800-2WB is a single phase 800VA microinverter from the HiFlow Pro series, built to run two solar panels on two independent MPPT inputs. It is designed for small residential solar PV systems on balconies, terraces, garden structures and outbuildings.
Wi-Fi and Bluetooth are built in, so the inverter talks directly to the S-Miles Home app without a separate DTU gateway. It is supplied with a 5m plug and play cable fitted with a UK Type G plug.
Key Features
- Rated output of 800VA (3.48A) at 230V AC, single phase.
- Two independent MPPT inputs, one panel per input, suited to modules of 320 to 540W and above.
- MPPT voltage range of 16 to 60V, with a maximum input current of 14A per input.
- Peak efficiency of 96.7% and nominal MPPT efficiency of 99.8%.
- Built-in 2.4GHz Wi-Fi and Bluetooth for cloud monitoring and local commissioning, with no DTU required.
- IP67 outdoor enclosure with natural convection cooling and no fans.
- Galvanically isolated high frequency transformer and integrated rapid shutdown.
- Meets the ETSI EN 303 645 cybersecurity standard for connected devices.
Product Overview
Each input has its own MPPT tracker, so the two panels are optimised separately. This matters where the panels face different directions or one is shaded for part of the day: the weaker panel does not drag down the output of the other.
The inverter converts the DC from both panels into 230V AC at 50Hz and delivers it to the property's AC supply through the 5m Flex-S3 plug and play cable. Night consumption is below 50mW, and the unit is rated to operate in ambient temperatures from -40°C to +65°C.
Through the S-Miles Home app you can watch real-time output, configure system settings and manage the system from your smartphone. The enclosure measures 261 x 180 x 35.1mm and weighs 3.2kg, so it can be mounted close to the panels on the same frame or structure.
Applications
- Balcony and terrace solar systems with two panels
- Garden, shed and garage roof installations
- Small residential systems where the two panels face different directions
- Grid-connected homes looking to reduce daytime electricity use
What Is Included
- 1 x Hoymiles HMS-800-2WB 800W dual MPPT microinverter
- 1 x 5m plug and play AC cable with UK Type G plug
Installation and Safety Notes
Although the HMS-800-2WB is designed for plug and play connection, any solar generator connected to a UK property's electrical supply must meet BS 7671 (IET Wiring Regulations) and the requirements of the local Distribution Network Operator (DNO). We recommend installation by a qualified electrician or MCS certified installer, who can check the circuit, earthing and protection, and handle any DNO notification that applies.
Connect only PV modules within the DC ratings: maximum input voltage 65V, maximum input current 14A and maximum short circuit current 25A per input. Check that the open circuit voltage of each panel at the lowest expected temperature stays below 65V.
The enclosure is rated IP67 and is suitable for outdoor mounting. Fit it in a ventilated position with space around it for natural cooling, keep the AC plug and socket protected from rain, and never connect the inverter through an extension lead or multi-way adaptor. This is a grid-connected PV microinverter; it is not designed for off-grid systems or direct battery connection.
Specifications
xModel Information
| Parameter | Value |
| Model | HMS-800-2WB |
| Series | HiFlow Pro |
| Type | Single phase plug-in microinverter |
| Topology | Galvanically isolated HF transformer |
Input Data (DC)
| Parameter | Value |
| Commonly used module power | 320 to 540W+ |
| Maximum input voltage | 65V |
| MPPT voltage range | 16 to 60V |
| Min / max start voltage | 22V / 60V |
| Maximum input current | 2 x 14A |
| Maximum input short circuit current | 2 x 25A |
| Number of MPPTs | 2 |
| Inputs per MPPT | 1 |
Output Data (AC)
| Parameter | Value |
| Rated output power | 800VA |
| Rated output current | 3.48A |
| Nominal output voltage / range | 230V / 180 to 275V* |
| Nominal frequency / range | 50Hz / 45 to 55Hz* |
| Power factor | >0.99 default, adjustable 0.8 leading to 0.8 lagging |
| Total harmonic distortion | <3% at nominal power |
Plug and Play Cable
| Parameter | Value |
| Connector type | Flex-S3 field connector |
| Cable size | 1mm² |
| Cable length | 5m |
| Plug type | UK Type G |
Efficiency
| Parameter | Value |
| Peak efficiency | 96.7% |
| Nominal MPPT efficiency | 99.8% |
| Night power consumption | <50mW |
General
| Parameter | Value |
| Ambient temperature range | -40°C to +65°C |
| Storage temperature range | -40°C to +85°C |
| Dimensions (W x H x D) | 261 x 180 x 35.1mm |
| Weight | 3.2kg |
| Enclosure rating | Outdoor IP67 |
| Cooling | Natural convection, no fans |
Communication
| Parameter | Value |
| Cloud communication | 2.4GHz Wi-Fi |
| Local app communication | Bluetooth |
| Interface | LED and S-Miles Home app |
Certifications
| Parameter | Value |
| Grid codes | VDE-AR-N 4105:2018, EN 50549-1:2019, NF EN 50549-1:2019, VFR 2019 |
| Safety | IEC/EN 62109-1/-2 |
| EMC | IEC/EN 61000-6-1/-2/-3/-4, IEC/EN 61000-3-2/-3 |
| Cybersecurity | ETSI EN 303 645 |
* Nominal voltage and frequency range can vary depending on local requirements.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.