Silent Power – All-in-One Pre-Assembled Solar Off-Grid Cabinet 2×11 kW Ultra MAX
Twin Conversol MAX-11 kW Off-Grid Inverters
Experience true energy independence with Voltacon’s Silent Power Cabinet, the most advanced plug-and-play solar off-grid system ever built. Fitted with two 11 kW Conversol MAX Ultra inverters, it delivers up to 22 kW continuous AC power with seamless integration to the grid or a diesel generator. Each system is fully assembled, wired, and tested by Voltacon’s engineers to guarantee reliability and ease of installation.
Compact Outdoor Design
Cabinet dimensions: Width 140 cm × Height 120 cm × Depth 25 cm.
The cabinet is made from durable metal and suitable for outdoor environments.
It includes splash-proof AC plugs, thermostatically controlled fans, and pre-wired connections for battery, solar, and grid inputs.
Please note: product photos may show white inverters, but your system will include the new orange MAX Ultra 11 kW model.
Effortless Plug-and-Play Installation
Every component is pre-connected and tested. All you need to do:
- Connect solar cables to the fused PV terminals.
- Connect the AC output to your consumer unit.
- Connect the AC input to the grid or generator.
- Connect lithium or GEL batteries to the 200 A fuse disconnector.
- Plug and Play with Pylontech, Fogstar, DYE, BYD, Seplos, Pytes and many more
Your system is now ready to switch on – no risk of short circuits or wiring errors.
Quick Start Settings
- In Menu 5 of the inverter, select the correct battery type (Lithium, AGM, or User-Defined).
- Connect the Wi-Fi Solar Assistant or Ethernet cable for remote monitoring.
- (Optional) Set charging schedules for specific hours.
Inside the Silent Power Cabinet
- 2× 11 kW Off-Grid Solar Inverters with 180 A integrated MPPT charger
- 2× PV strings (20 A max) with fuses, surge protection, and DC isolator
- 250 A battery fuse disconnector
- Victron Bluetooth Smart Shunt 500A
- Solar Assistant Microcontroller – lifetime monitoring, no subscription
- Protected AC input and output circuits
- Thermostatically controlled cooling fan
- Outdoor-rated metallic cabinet with splash-proof 3-pin connectors
Key Features of Conversol MAX Ultra 11 kW
- High PV input voltage range (90 – 450 VDC)
- Removable LCD control module with multiple communication ports
- Selectable high-power charging current (up to 150 A)
- Built-in Wi-Fi for mobile monitoring via app
- Configurable AC/Solar input priority
- Reserved communication port for BMS (RS485 or CAN-BUS)
- Parallel operation up to 6 units (kit optional)
- Maximum PV Input: 12 000 W (6 000 W × 2)
Technical Specifications
| CONVERSOL 11 kW MAX ULTRA |
|---|
| Model | Voltacon MAX-II 11kW Twin |
| Rated Power | 11 000 VA / 11 000 W |
| Parallel Capability | Yes – Up to 6 units |
| AC Input Voltage | 230 VAC (90–280 V range) |
| Frequency Range | 50/60 Hz (Auto sensing) |
| Output Voltage Regulation | 230 V ± 5% |
| Surge Power | 22 000 VA |
| Efficiency (Peak) | 93% |
| Transfer Time | 10 – 20 ms |
| Waveform | Pure Sine Wave |
| Battery Voltage | 48 VDC |
| Float Charge Voltage | 54 VDC |
| Overcharge Protection | 63 VDC |
| Max PV Array Power | 12 000 W (6 000 W × 2) |
| MPPT Range | 90 – 450 VDC |
| PV Open Circuit Voltage | 500 VDC Max |
| Max Solar Charge Current | 150 A |
| Max AC Charge Current | 150 A |
| Dimensions (W×H×D) | 438 × 553.6 × 145 mm |
| Net Weight | 18.4 kg |
| Interfaces | USB, RS232, RS485, Wi-Fi, Dry contact, BTS |
| Operating Temperature | -10 °C to 50 °C |
| Compliance | CE Certified |
Why Choose Voltacon Silent Power
- Complete factory-built solution – plug and play installation
- Pre-wired and tested under full load conditions
- Compatible with all major lithium battery brands including Pylontech
- Back-up capability from grid or diesel generator
- Safe, waterproof, and maintenance-friendly design
Enjoy the power of independence. With Silent Power, you generate, store, and manage your own energy efficiently and safely.