Product Features
VST-12K-20K-M3 Series Three Phase On-grid Inverter Overview
The VEICHI VST-12K-20K-M3 series three-phase grid-tie inverters, designed for residential and small commercial applications, come in four power ratings from 12kW to 20kW. Precise MPPT algorithms reduce energy loss, achieving up to 98.8% maximum efficiency. With 3 MPPT trackers, a maximum PV input current of 36A, and an MPPT voltage range of 100V–1080V, they support high-power PV modules for longer generation time and higher returns. Communication options include Wi-Fi, 4G, GPRS, and Bluetooth for remote control. The IP66 protection rating, intelligent grounding detection, and lightning protection ensure electrical safety.
High-Performance On-Grid Inverter
- Maximum MPPT current: 36A, peak efficiency up to 98.8%, delivering higher green energy yield;
- Three MPPTs channels with precise MPPT algorithm for real-time maximum power point tracking;
- Adjustable AC output voltage range 312V–520V, compatible with most grid specifications;
- Wide MPPT voltage range, offering strong anti-shading capability.
Multiple Features for Worry-Free Operation
- IP66 protection rating, suitable for both indoor and outdoor installation;
- Ground fault detection and built-in lightning protection ensure safe operation;
- Supports multiple communication options: Wi‑Fi, 4G, Bluetooth, RS485 for real-time monitoring;
- Multiple grid‑tie certifications enable deployment in countries worldwide;
- Low-noise design with noise level below 40 dB for unobtrusive operation.
Technical Specifications
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Product Model
VST-12K-M3 VST-15K-M3 VST-18K-M3 VST-20K-M3
Max Input Voltage(V)
1100 1100 1100 1100
Max Input Current(A)
18/18/36 18/18/36 18/18/36 18/18/36
MPPT Number
3 3 3 3
Strings Number Per MPPT
1/1/2 1/1/2 1/1/2 1/1/2
Rated Grid Voltage(V) (L/N/PE)
220/380, 230/400, 240/415, 312~520 220/380, 230/400, 240/415, 312~520 220/380, 230/400, 240/415, 312~520 220/380, 230/400, 240/415, 312~520
Start-up/Min Input Voltage(V)
50/40 50/40 50/40 50/40
MPPT Voltage Range(V)
100~1080 100~1080 100~1080 100~1080
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