Hoymiles Micro inverter HMS-800W-2T - 800W power for balcony power plants
Description
Product information
The Hoymiles HMS-800W-2T is the powerful successor to the legendary HM series and sets new standards for modern balcony power plants. With a maximum output power of 800 watts this micro inverter gets the most out of your solar modules and is optimally prepared for the current legislation.
The "2T" in the name stands for two independent MPPT trackers. This means you can connect two solar modules, which are controlled completely independently of each other. If one module is in the shade or has a different alignment, the second module still runs at full power. Compared to the previous series, the HMS-800W-2T uses the more stable Sub-1G radio technology (for greater range to DTU) and the new BC05 plug-in system.
Highlights at a Glance
- High output power (800 watts): Delivers a full 800 VA of power into the household grid, making it ideal for the maximum permissible feed-in limit of balcony power plants.
- Two independent MPPT trackers: Guarantees the maximum yield from each individual module, even with partial shading or different alignment (e.g. east/west).
- Stable Sub-1G communication: Offers a noticeably more stable and wider-reaching connection through walls when used with an (optional) DTU compared to conventional Wi-Fi.
- New connection system (BC05): Equipped with the proprietary Hoymiles "Field Connector" (BC05) for rapid and extremely watertight installation.
- Reactive power control: Complies with the VDE-AR-N 4105:2018-11 standard and supports grid stability by providing reactive power.
- Robust design (IP67): The fully sealed housing is dust- and waterproof and designed for decades of outdoor use in the harshest conditions.
- Flexible limiting: Using an optional DTU unit, the output can be temporarily restricted to 600 watts via app (S-Miles Cloud) if required.
Areas of Application
The HMS-800W-2T is the standard solution for:
- Balcony power plants (2 modules): The classic – two modules on the balcony railing for maximum self-sufficiency covering your electricity needs.
- Garages & Carports: Thanks to high protection class IP67 can be safely used on flat roofs.
- Garden sheds: Easy installation “Plug & Play” (with suitable Schuko cable).
- Shaded locations: Where a string inverter would fail, the HMS-800 still extracts energy thanks to single MPPT.
Mounting & Safety Instructions
- Cable selection (Important!): The HMS-800W-2T uses the new BC05 connection (rectangular, flat). It is not compatible with the old Betteri BC01 cables from the HM series. When purchasing the connection cable, be sure to look for the note "for HMS series" or "BC05".
- Distance to the surface: Mount the inverter with at least 2 cm distance to the mounting surface (roof/wall) so that air can circulate behind the unit (passive cooling).
- Hot Spot: The metal housing acts as a heat sink and in summer at full load can become up to 80°C hot. This is normal, but avoid touching during operation.
- Earthing: The device is earthed via the AC connection. Additional grounding on the housing is possible, but not usually mandatory if a compliant Schuko/Wieland cable is used (observe local VDE standards).
Features
| Model | Hoymiles HMS-800W-2T |
| Max. recommended PV power | **320 W to 540 W+** (per module) |
| Maximum output power | **800 VA** (adjustable to 600 VA) |
| MPPT number / inputs | **2 MPPT** / 2 DC inputs |
| Max. DC input voltage | **65 V** |
| Max. input current (DC) | **2 x 14 A** (Compatible with modern 500W+ modules) |
| Communication | **Integrated Wi-Fi** (2.4 GHz) |
| AC connection | **BC05 connector** (HMS series) |
| Efficiency (CEC) | **96.7 %** |
| Protection class | **IP67** (dust-tight & protection against temporary submersion) |
| Dimensions (W x H x D) | 261 x 180 x 35.1 mm |
FAQs about the Hoymiles HMS-800W-2T
What is the difference with the Hoymiles HM-800?
The HMS is the newer generation. The main differences are:
- Radio: HMS uses Sub-1G (better range) instead of 2.4 GHz (HM).
- Connection: HMS uses the BC05 connector, HM uses Betteri BC01.
- Amperage: The HMS tolerates higher input currents (14A), making it more compatible with modern high performance modules (400W+).
Do I necessarily need a DTU (Data Transfer Unit)?
For pure operation ("generate power"): No. As soon as the sun shines and the grid is present, it generates power. For monitoring (app) and settings (throttling to 600W): Yes. As the HMS-800W-2T does not have integrated Wi-Fi, you need the DTU-Lite-S stick for app connection.
Can I limit the inverter to 600 watts?
Yes. When used together with a DTU and an installer account in the S-Miles Cloud, the output power can be limited as a percentage (e.g. to 75% = 600W) to comply with current registration requirements.Documents 1
Reviews 0
Login
Customers also bought
Beltrona High-quality aluminium mounting structure for mounting a photovoltaic module (for all solar module sizes) on flat roofs etc. The installation angle is 30°-60° (ground/roof)
The SOLR450 solar cable (50 metres, 4mm²) in red is the ideal cable by the metre for photovoltaic projects that require flexible and secure cabling over medium distances. With a length of 50 metres, this reel offers sufficient range for string cabling on rooftops or for connecting module fields to the inverter. The red colouring ensures standard-compliant identification of the positive pole (+), making installation clear and minimising connection errors.Certified according to the international standard IEC 62930, this cable meets the highest requirements for safety and durability. It is specially designed for harsh outdoor conditions and, thanks to its high-quality material composition, ensures efficient energy transmission over the entire service life of your solar system.Highlights at a glanceCertified standard: Complies with IEC 62930 (H1Z2Z2-K), guaranteeing maximum suitability for photovoltaic direct current systems up to 1500V.Generous range: 50 metres in one piece enable continuous installation without additional plug connections between module and technical room.Clear polarity: The red outer insulation ensures a clear visual separation of the positive conductor, increasing safety during installation and maintenance.Weather & UV resistant: The high-quality XLPO double insulation provides long-lasting protection against embrittlement caused by sunlight, ozone and severe weather.Optimum conductivity: The finely stranded conductor made of tinned copper offers excellent corrosion protection and consistently low contact resistance.High thermal load capacity: Reliable operation in a wide temperature range from -40°C to +90°C.Areas of applicationThe SOLR450 is the ideal choice for a variety of installation scenarios:Single-family homes & roof systemsPerfect for connecting solar modules to the inverter if installed in the basement or utility room.Balcony solar systems & garden systemsIdeal for installations where a greater distance needs to be covered between the panels and the feed-in point.Mobile solar systemsUsed in independent systems for tiny houses or larger motorhomes where certified industrial quality is valued.Assembly & safety instructionsProfessional connectionUse only high-quality MC4 connectors when assembling and ensure precise crimping using a specialised solar crimping tool.Mechanical fixationSecure the cable at regular intervals with UV-resistant cable ties to minimise mechanical stresses caused by wind or its own weight.Avoidance of standing waterLay the cable so that it is not permanently in standing water (e.g. in depressions on flat roofs) to maximise protection of the insulation. Features Model / SKU**SOLR450** Conductor cross-section**4.0 mm²** Delivery form**50 metre ring** ColourRed (positive pole) Rated voltageDC: 1.5 kV / Max. 1.8 kV Conductor materialCopper, tinned (finely stranded) Temperature range-40°C to +90°C (ambient) Certificates**IEC 62930 / EN 50618 (H1Z2Z2-K)** Special featureHalogen-free & short-circuit proof FAQs about solar cable red 50m 4mm²Why is the IEC 62930 certification important?It guarantees longevity in PV systems. This standard ensures that the cable is halogen-free, flame-retardant and specially designed to withstand stresses from high DC voltages and UV light. This sets it apart significantly from conventional installation cables.Is 4mm² sufficient for a 50 metre cable?Yes, for moderate currents. In a typical module string with high voltages, voltage drop at 50 metres and 4mm² is generally completely negligible. With systems with very low voltages (e.g. 12V), however, the voltage drop should be checked in advance.Is the cable resistant to acids and alkalis?Yes. The XLPO insulation provides good resistance to chemical influences, which is particularly advantageous for installations near industrial areas or in agriculture (ammonia exposure).
The solar cable SOLS450 (50 metres, 4mm²) in black is the ideal metered cable for photovoltaic projects that require flexible and secure wiring over medium distances. With a length of 50 metres, this roll offers ample scope for string cabling on rooftops or for connecting module arrays to the inverter. The black colouring is used for standard-compliant identification of the negative pole (-), which makes installation straightforward and minimises connection errors.Certified to the international standard IEC 62930, this cable fulfils the highest requirements for safety and durability. It is specially designed for the harsh conditions outdoors and, thanks to its high-quality material composition, ensures efficient energy transmission over the entire service life of your solar installation.Highlights at a glanceCertified standard: Complies with standard IEC 62930 (H1Z2Z2-K), which guarantees maximum suitability for photovoltaic DC systems up to 1500V.Generous range: 50 metres in one piece allow uninterrupted installation without additional connectors between module array and technical room.Clear polarity: The black outer sheath provides clear visual separation of the negative cable, increasing safety during installation and maintenance.Weather- & UV-resistant: The quality XLPO double insulation provides lasting protection against embrittlement from sunlight, ozone, and extreme weather.Optimum conductivity: The finely stranded conductor made from tinned copper provides excellent corrosion protection and permanently low transition resistances.High thermal load capacity: Reliable operation in a wide temperature range from -40°C to +90°C.Areas of applicationThe SOLS450 is the ideal choice for a wide variety of installation scenarios:Single-family homes & rooftop systemsPerfect for connecting the solar modules to the inverter when it is installed in the basement or utility room.Balcony systems & garden installationsIdeal for installations where a greater distance between the panels and the feed-in point needs to be bridged.Mobile solar systemsUse in self-sufficient systems for tiny houses or larger mobile homes, where certified industrial quality is important.Installation & safety instructionsProfessional connectionFor assembly, use only high-quality MC4 connectors and ensure precise crimping with special solar crimping pliers.Mechanical fixationFasten the cable at regular intervals with UV-resistant cable ties to minimise mechanical stress from wind or self-weight.Avoiding induction loopsLay the black negative cable as parallel and as close as possible to the red positive cable to reduce electromagnetic interference and the risk of lightning induction. Features Model / SKU**SOLS450** Conductor cross-section**4.0 mm²** Delivery form**50 metre ring** ColourBlack (negative pole) Rated voltageDC: 1.5 kV / Max. 1.8 kV Conductor materialCopper, tinned (finely stranded) Temperature range-40°C to +90°C (ambient) Certificates**IEC 62930 / EN 50618 (H1Z2Z2-K)** Special featureHalogen-free & short-circuit proof FAQs about the solar cable black 50m 4mm²Why is IEC 62930 certification important?It guarantees longevity in PV systems.This standard ensures that the cable is halogen-free, flame-retardant and specially tested against stresses from high DC voltages and UV light. This distinguishes it significantly from conventional installation cables.Is 4mm² sufficient for a 50m long cable?Yes, for moderate currents.In a typical module string with high voltage, the voltage drop at 50 metres and 4mm² is usually completely unproblematic. For systems with very low voltages (e.g. 12V), however, the voltage drop should be checked in advance.Is the cable resistant to acids and alkalis?Yes.The XLPO insulation provides good resistance to chemical influences, which is particularly advantageous for installations near industrial areas or in agriculture (ammonia exposure).
The 10 metre Hoymiles BC05 to Schuko connection cable is the customised solution for the simple commissioning of modern Hoymiles HMS microinverters. While older series used the Betteri connector, the new HMS generation (e.g. HMS-800W-2T) uses the special "Field Connector" (BC05).This cable connects this special connector directly to your household socket. It eliminates the complicated assembly of AC trunk cables for single installations. The high-quality, 10-metre-long rubber hose cable (H07RN-F) is extremely resistant to weather influences and UV radiation, ensuring safe continuous operation of your balcony power plant outdoors.Highlights at a glancePerfect fit: Specially assembled for Hoymiles microinverters of the HMS series (e.g. HMS-600, HMS-800, HMS-1000) with the typical BC05 connector.Simple installation: Connects the inverter directly and without additional adapters to a standard outdoor Schuko socket ("Plug & Play").Long range: With 10 metres of length you can easily bridge distances from the balcony, garden fence or flat roof to the next outdoor socket.High-quality rubber cable: The heavy-duty rubber hose cable of type H07RN-F 3G1.5 mm² is extremely robust, oil-resistant and suitable for long-term outdoor use.High protection class: The BC05 plug on the inverter side is waterproof (IP68), while the Schuko plug is designed for sheltered outdoor areas (IP44).Standard-compliant manufacture: Professionally machine-pressed contacts ensure minimal contact resistance and maximum safety when feeding power.Areas of applicationThis cable is essential for owners of the current Hoymiles generation:Balcony power plants (HMS): For direct connection of an HMS-800-2T to the balcony socket.Garden installation: When the inverter is mounted on the module in the garden and the path to the patio socket needs to be bridged.Retrofit: Replacement of defective or too short original cables in existing HMS systems.Mounting & safety instructionsCheck connection: The BC05 plug must audibly latch onto the inverter to ensure watertightness.Risk of confusion: This cable does not fit the older Hoymiles HM series (these use the Betteri BC01 connector). Please check your inverter connector before purchase.Cable routing: When laying, ensure the cable is not pulled over sharp edges or crushed (e.g. through windows without lead-through).Schuko weather protection: While the BC05 plug is fully weatherproof, the Schuko plug should be inserted into a splash-proof outdoor socket that is ideally covered. Features Model / DesignationHoymiles HMS connection cable (10 m) Connector A (inverter)**Hoymiles BC05** (Field Connector / Female) Connector B (mains side)**Schuko plug** (Type F, IP44/IP65) CompatibilityHoymiles **HMS series** (e.g. HMS-600, 800, 1000, 1600, 2000) Cable specification**H07RN-F 3G1.5 mm²** (heavy-duty rubber cable) Rated voltage**230 V AC** Max. current-carrying capacity**16 A** Protection class (overall)**IP65** (connector) / IP44 (Schuko plug) ApprovalsVDE-tested, CE-compliant FAQs about the Hoymiles BC05 cableDoes this cable fit my Hoymiles HM-600 or HM-800?No, definitely not. The HM series uses the "Betteri BC01" connector (identifiable by the wave-shaped housing). The HMS series offered here uses the "BC05" connector (smoother, more rectangular design). The connectors are not mechanically compatible.Can I shorten the cable if 10 metres is too long?Technically, this is possible, but you will lose the warranty and the tested safety of the assembled Schuko side. It is often better to safely stow the excess length in a neat loop (not too tightly wound because of induction).Is the cable suitable for 800 watt feed-in?Yes, absolutely. The cable has a cross-section of 1.5 mm² and is designed for currents of up to 16 amps (approx. 3680 watts). The continuous supply of 800 watts (approx. 3.5 amps) presents no thermal problem for this high-quality cable.