Multi HS19 Solar 15k — The Entire Solar Power Plant in a Single 4U Unit
15 kW three-phase inverter/charger, four independent MPPT trackers handling up to 32 kW of solar capacity, and support for 650–1000 V high-voltage batteries — all packed into a 19" chassis weighing just 26.5 kg. Victron's first high-voltage Multi completely redefines the concept of a «solar server room».
What is the Multi HS19 Solar 15k and who is it for
Imagine an inverter, a battery charger, and four MPPT controllers — not as five separate boxes tangled in kilometers of cables, but as one sleek block that slides cleanly into a rack right next to your batteries.
That is exactly how the Multi HS19 Solar 15k works — Victron's first high-voltage inverter designed for 650–1000 V systems. It is engineered for high-consumption private homes, hotels, small businesses, and commercial spaces where maximum solar yield, compactness, and peak reliability are essential.
Our engineers can map out the ideal system configuration tailored to your load profile and panel layout — free consulting and component matching included.
What you will learn in this review
1 Physical design and interface layout
2 Key metrics: capacity, efficiency, weight
3 Why an «all-in-one» approach saves money
4 System connection schematic
5 Full technical data sheet
6 Best use cases for the HS19
Multi HS19 Solar 15k from every angle
Front Panel
Batt+/Batt− terminals, main DC isolation switch, status display, VE.Direct, Battery CAN, and VE.Can ports, plus relay outputs and remote on/off connector.
Rear Panel: 4 PV Inputs
Four independent pairs of MC4 PV+/PV− connectors routing to the four internal MPPT trackers alongside a high-flow active cooling fan.
Compact 4U Chassis
Only 4U in height and 70 cm deep — standard 19" equipment racks can cleanly house the inverter directly alongside your high-voltage batteries.
Easy Single-Person Install
The low weight of just 26.5 kg allows for simple rack-mounting without needing specialized heavy-lifting gear.
Three-phase inverter, peaking up to 22 kW (5s)
4 independent 8 kW MPPT solar trackers
with a blistering 99% efficiency on solar tracking
4U / 70 cm depth form factor for standard 19" racks
Five devices consolidated into one chassis
🧰 Traditional 32 kW Solar Setup
● Separate three-phase inverter/charger unit
● 3 to 4 standalone MPPT solar controllers
● Extensive, heavy power cabling and cross-unit terminal links
● Multiple brands, mismatched warranties, fragmented tracking
● Larger footprints in utility rooms and more potential points of failure
⚡ Multi HS19 Solar 15k ⭐ All-in-One 4U
● Inverter, charger, and 4 MPPTs combined into a single enclosure
● One unified rack for both the power conversion unit and high-voltage cells
● drasctically reduced copper usage via a 650–1000 V battery architecture
● Unified Victron software layer: VictronConnect, VRM, and GX integration
● Single vendor contact point, one warranty, and faster commissioning times
💡 How high-voltage battery architecture cuts upfront costs
Operating at 650–1000 V keeps current levels minimal compared to typical 48 V low-voltage banks running equivalent power. This means thinner, significantly less expensive DC cables that are much easier to pull and bend.
Up to 33 kW charging capacity at 800 V allows for incredibly fast bulk charging of massive battery reserves, making the most of brief sunny windows on overcast days.
A single display, one instant Bluetooth handshake via VictronConnect, and one central GX controller (Cerbo GX / Ekrano GX) are all it takes to handle total system metrics via mobile app or the global cloud VRM Portal.
How the Multi HS19 Solar 15k integrates into your site
The diagnostic panel and primary Batt+/Batt− connection points face forward on the assembly, while the four dedicated string entries lie at the back. Local tuning relies on VictronConnect (Bluetooth), while out-of-network remote operations leverage any standard GX peripheral (like a Cerbo GX or Ekrano GX) linked right into the native VE.Can terminal.
Complete Technical Specifications
| Parameter | Multi HS19 Solar 15k |
|---|---|
| Max. AC Input and Pass-through Current | |
| Maximum Current | 32 A |
| Inverter Stage | |
| Apparent/Active Power | 15 kVA / 15 kW |
| Continuous Power up to 40°C | 15 kW |
| Peak Output Power | 22 kW (5 s) |
| Peak AC Current | 32 A (5 s) |
| Continuous AC Current per Phase | 22 A (RMS) |
| Nominal AC Voltage | 400 V ± 10%, 3-phase |
| AC Frequency Range | 50/60 Hz (45–65 Hz) |
| Total Harmonic Distortion (THD) | < 3% |
| Peak Efficiency | 98% |
| Zero-Load Consumption (at 650 V) | 50 W |
| AC Interface Count | 1 Input / 2 Outputs |
| Solar DC Inputs | |
| Max. Open-Circuit Voltage (Voc) | 600 V |
| Short-Circuit / MPP Current per Input | 13.5 A / 13.5 A |
| Independent MPPT Trackers | 4 |
| MPPT Voltage Range | 100–600 V |
| Minimum Startup Voltage | 300 V |
| Max. PV Array Power per Input | 8 kW (32 kW cumulative total) |
| Tracking Stage Efficiency | 99% |
| Battery Interface | |
| Operational Voltage Range | 650–1000 V |
| Max. Discharge Current | 25 A |
| Max. Charge Current | 41 A (up to 33 kW at 800 V) |
| BMS Interlock Bus | CAN (Victron HV Protocol) |
| Protections & System Features | |
| Multi-Unit Parallel Architecture | Currently unavailable (planned for subsequent hardware revisions) |
| Overvoltage Category Rating | PV II / AC III |
| Environmental Operating Conditions | Climate-controlled indoor space |
| Integrated Fail-safes | PV overvoltage, PV overcurrent, DC insulation tracking, residual leakage current profiling, AC overcurrent protection |
| Physical & General Metrics | |
| Rack Footprint / Depth / Weight | 4U / 70 cm / 26.5 kg |
| AC Terminal Block Type | Spring-loaded push-in: solid 0.2–10 mm², stranded 0.25–6 mm² |
| DC Battery Terminals | Surlok 5.7 mm connectors |
| PV Input Type | MC4 original Staubli Multi-Contact links |
| Operational Temperature Bounds | 0…+60°C (full performance ratings maintained up to +40°C) |
| Thermal Dissipation Profile | Forced air cooling (internal active fan) |
| Max. Operational Elevation | 2000 m |
| Ambient Humidity Range (non-condensing) | Up to 95% RH |
| Ingress Protection Rating | IP20 |
| Auxiliary Programmable Dry Contact | Yes (Rated at 3 A up to 30 V DC) |
| Communications Hardware | 1× Battery CAN, 1× VE.Can, VE.Direct, Bluetooth SMART built-in |
| Remote Logic Terminal (On/Off) | Yes |
Key factors to note before ordering
Local Interface & Remote Management
Initial setup and tailoring take place locally over a clean, built-in Bluetooth radio running the standard VictronConnect application — eliminating any need for standalone adapter modules. For complete off-site access through the global cloud-based VRM Portal, simply attach a standard GX logic component (like the compact Cerbo GX or the touch-interactive Ekrano GX) directly into the available VE.Can bus. The integrated forward LCD matrix provides live status loops for SoC, per-tracker generation arrays, and active power distribution modes.
PowerControl & Advanced PowerAssist
The integrated PowerControl logic actively protects limited utility lines or breaker runs from blowing, prioritizing downstream demand and throttling active battery replenishment as needed. If surges step higher, PowerAssist kicks in seamlessly: drawing instant supplemental energy from the DC cells to balance transient peak loads, enabling owners to easily bypass the steep fees and regulatory bottlenecks of upgrading public utility service limits.
Site Automation & Native ESS Protocols
Deep compatibility with Node-RED script architectures and standard Energy Automations suites makes deploying custom operations simple. You can effortlessly redirect midday solar generation spikes straight into thermal dumps, dynamically alter grid setpoints based on local facility trends, or signal emergency generator sets using the on-board programmable dry contact relay. Running inside an ESS (Energy Storage System) framework, the HS19 delivers pristine peak-shaving control, managing exactly when to cache, draw down, or feed energy back into the open market grid.
Battery Compatibility & System Routing Requirements
The Multi HS19 Solar 15k is tailored to mesh specifically with intelligent, managed high-voltage battery arrays that communicate over standard CAN buses using the native Victron HV Protocol within a 650–1000 V operational envelope. Completing a clean deployment requires a matched VE.Can to CAN-bus BMS cable link for inter-system communication, alongside a GX hardware component — either the low-profile Cerbo GX or the full glass-fronted Ekrano GX console to coordinate localized scripts and cloud data telemetry.
Where the Multi HS19 Solar 15k shines best
The Multi HS19 Solar 15k is the definitive choice if...
Choose the HS19 Solar 15k if...
Ready to spec the Multi HS19 Solar 15k into your project?
Share your exact load requirements and panel plans with us — we will design a completely balanced configuration including battery storage, matching GX control modules, and proper system cabling. Consulting is completely free.
