8K/10K/12K/15K/18K | Low Voltage

8-18k Three Phase Low Voltage Energy Storage Inverter

Smart Energy Management

Smart Energy Management

  • AI intelligently manages charging and discharging based on TOU (Time-of-Use) tariffs
  • Seamless integration with VPP and EMS platforms for enhanced energy optimization
  • Built-in control for SG-ready heat pumps


High Performance

  • Switching time < 10ms
  • 160% PV input capacity to maximize solar energy utilization
  • Supports three-phase unbalanced output, allowing up to 50% of rated inverter power per phase


Flexible & Scalable

  • Compatible with mainstream lithium and lead-acid batteries
  • Easily expand system capacity using parallel connections and AC coupling


Simple & Fast Configuration

  • Bluetooth app support for quick and easy setup
  • 7-inch large screen uses U.S.-made ZEITLER industrial-grade components
Download Datasheet

Technical Specification

Models 8K 10K 12K 15K 18K
Input DC (PV side)
Recommended max. PV array size 16 kW 20 kW 24 kW 30 kW 36 kW
Max. usable PV input power 12.8 kW 16 kW 19.2 kW 24 kW 28.8 kW
Max. input voltage 1000 V
Rated voltage 550 V
Start-up voltage 160 V
MPPT voltage range 200 - 850 V
Max. input current 20 A / 40 A 40 A / 40 A 42 A / 42 A
Max. short circuit current 30 A / 50 A 50 A / 50 A 50 A / 50 A
MPPT number / Max. input strings number 2 / 3 2 / 4
Battery
Battery type Li-ion / Lead-acid
Battery voltage range 40 - 60 V
Max. charge / discharge current 180 A 220 A 250 A 290 A 320 A
Number of battery ports 2
Max. charge / discharge current of each port 150 A 175 A
Communication CAN / RS485
Output AC (Grid side)
Rated output power 8 kW 10 kW 12 kW 15 kW 18 kW
Max. apparent output power 8 kVA 10 kVA 12 kVA 15 kVA 18 kVA
Rated grid voltage 3/N/PE, 220 V / 380 V; 3/N/PE, 230 V / 400 V
Rated grid frequency 50 Hz / 60 Hz
Rated grid output current 12.2 A / 11.5 A 15.2 A / 14.4 A 18.2 A / 17.3 A 22.8 A / 21.7 A 27.3 A / 26.1 A
Power factor > 0.99 (0.8 leading - 0.8 lagging)
THDi < 3%
Efficiency
Max. efficiency 97.5%
EU efficiency 96.4%
BAT charged by PV / AC max. efficiency 95.0% / 94.4%
BAT discharged to AC max. efficiency 94.5%
Protection
Anti-islanding protection Yes
Insulation resistance monitoring Yes
Output over current protection Yes
Short circuit protection Yes
DC reverse-polarity protection Yes
Surge protection DC Type II / AC Type II (Optional)
General Data
Dimensions (W × H × D) 430 × 660 × 305 mm
Weight 42 kg
Ingress protection IP66
Noise emission (typical) < 65 dB(A)
Cooling concept Intelligent fan-cooling
Max. operation altitude 4000 m
Features
DC connection MC4 Quick connection plug (PV) & Screw terminal (Battery)
AC connection Screw terminal
Display 7.0" LCD display & Bluetooth + APP
Communication CAN, RS485, Ethernet, Optional: S3-WiFi-ST, Cellular, LAN