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Residential Inverter丨Off-Grid And On-Grid丨BK-SCMAX-11KVA
PRODUCT PARAMETERS
The BK-INV series is a wall-mounted, dual-MPPT hybrid inverter-charger designed specifically for luxury villas, large homes, small-to-medium businesses, and off-grid micro-grids, integrating an 11 KVA pure-sine inverter, smart 48 V battery manager, and UPS-grade transfer switch.
- Dual-MPPT & Ultra-Wide PV Energy Harvesting
- Zero-Downtime Uninterrupted Power Supply
- High Power Quality & Industry-Leading Efficiency
- Extended Battery Service Life & Safe Charging
- High Reliability for Harsh Environments
- High Scalability via Six-Unit Parallel
- Robust & Aesthetic Structural Design
- Smart Connectivity & User-Friendly Operation
Description
FAQs
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Description
Product Overview
The BK-SCMAX-11KVA is a wall-mounted, dual-MPPT hybrid inverter-charger that merges an 11 KVA pure-sine inverter, smart 48 V battery manager and UPS-grade transfer switch in a 144 × 420 × 590 mm, 19 kg cabinet. It seamlessly toggles between on-grid feed-in and off-grid backup, supports up to six units in parallel (66 kW total), and can be commissioned on a wall in 30 minutes—delivering 24-hour reliable green power for homes, commercial rooftops and micro-grids alike.
Application
- Luxury Villas & Large Homes
30 kWh battery bank + 11 kW hybrid inverter for 80–100 % self-consumption and net-metering revenue.
- Small-to-Medium Businesses
Workshops, EV charging stations—sell surplus power while securing critical loads during outages.
- Off-Grid Micro-Grids
Rural villages, islands, telecom shelters—run purely on solar + battery or blend with gensets for fuel savings.
- Retrofit & Upgrade
Drop-in replacement for existing grid-tie systems to add battery storage, backup power and load management without rewiring.
- Emergency & Construction Sites
Parallel units for higher capacity, delivering silent, fuel-saving green power where grid is unreliable.
Product Features
- Dual-MPPT & Ultra-Wide PV
• 2 × 18 A trackers, 90–450 V DC input, 11 kW PV power—captures maximum energy even on cloudy days.
- Record Efficiency
• 95 % grid-tie / 93 % battery efficiency, <3 % THD, 0.99 power factor—industry-leading performance.
- 2× Surge Power
• 22 kVA (11 kW model) for 5 seconds—starts heavy motors, pumps or air-conditioners without tripping.
- 48 V Battery Platform
• 120 A max charge current, three-stage / Li-BMS compatible, cold-start at 46 V—fast, safe and future-proof.
- Six-Unit Parallel
• RS485/CAN daisy-chain, hot-swap expansion to 66 kW—perfect for villas or small commercial sites.
- Smart HMI & Cloud
• Detachable color control screen + built-in Wi-Fi (Android/iOS app) + USB/RS232/RS485—local or remote monitoring in one tap.
- Rugged & User-Friendly
• –10 °C to +50 °C full-load operation, washable dust filter; white wall-mount design blends with any décor.
Specifications
| Model | BK-SCMAX-11KVA | |
| Product Type | Residential photovoltaic inverter | |
| Power Capacity | 11000VA/11000W | |
| Number Of Parallel Machines | Up to 6 units | |
| AC Input | Voltage | 230VAC |
| Voltage Range | 170-280Vac (for personal computers) 90-280Vac (suitable for household appliances) | |
| Frequency | 50 Hz/60 Hz | |
| PV Input | Maximum Photovoltaic Array Power | 11000W |
| Maximum Open-circuit Voltage Of Photovoltaic Array | 500VDC | |
| MPPT Operating Voltage Range | 90~450VDC | |
| Voltage | 360V | |
| Starting Voltage | 80V+/-5VDC | |
| Number Of MPPT | 2 | |
| Maximum Input Current | 18A*2 | |
| Output | Voltage | 230V±5% |
| Frequency | 50 Hz | |
| Efficiency | ≥93% | |
| Switching Time | 10ms (UPS), 20ms (household appliances) | |
| Harmonic | ≤3% | |
| Overload Capacity | 5s@≥150%load;10s@110%-150%load | |
| Mains Mode | Voltage | 230Vac±5% |
| Frequency | 50 Hz | |
| Efficiency | 95% (resistive load, battery saturated) | |
| Battery | Voltage | 48V |
| Charging Method | Three-stage charging | |
| Maximum Charging Current | 120A | |
| Cold Start Voltage | 46VDC | |
| Battery Type | Lead-acid, AGM, lithium battery | |
| Interface | Battery Management Function | RS232,RS485,CAN |
| Communication | USB, RS232, WIFI, contact point, | |
| Protective Function | Output short circuit, overload, over temperature, and other protection functions | |
| Environment | Operating Temperature | -10℃-50℃ |
| Storage Temperature | -15℃-60℃ | |
| Humidity | 5%-95% | |
| Physical | dimensions （D×W×H） | 144x420x590mm |
| Weight | 19kg | |
FAQs
What is UPS?
UPS stands for Uninterruptible Power Supply and is a device that provides a continuous supply of power to protect critical loads from power failures or fluctuations.
What is the main role of UPS?
The main role of a UPS is to provide a backup power source to ensure that critical equipment can continue to operate when utility power is interrupted or unstable, avoiding data loss or equipment damage.
What are the types of UPS?
UPS is mainly divided into three types: offline, online and online interactive.
How to choose the power capacity of UPS?
When choosing the power capacity of the UPS, you need to consider the total power demand of the load, it is usually recommended to choose a slightly larger than the total load power of the UPS to ensure sufficient standby time.
How is the standby time of a UPS determined?
The standby time of a UPS depends on the battery capacity and load power. Standby time usually ranges from 10 minutes to several hours, and the specific needs can be determined according to the actual application scenario.
