Off-grid PCUs
SEOG off-grid MPPT solar PCU
Industrial-grade single-phase off-grid MPPT solar PCUs, 1–20 kVA, with optional grid charging.
Overview
What it does
The SEOG series are single-phase off-grid MPPT solar PCUs that manage solar, grid and battery power for harsh Indian conditions and wide grid voltage swings.
They use IGBT-based MPPT, a transformer for galvanic isolation and breakers on all inputs and outputs.
Ratings run from 1 to 20 kVA on 24 V to 240 V battery systems.
Applications
- Residences
- Banks and ATMs
- Clinics, schools and hotels
- Petrol pumps
- Rural microgrids
- Commercial and industrial sites
Features
Why engineers choose it
- Multiple priority modes, including solar-grid-battery, solar-battery-grid, intelligent and battery extra-backup modes
- IGBT-based MPPT charge controller
- Transformer for galvanic isolation; protective breakers on all inputs and outputs
- Large LCD with data logging for up to 5 years
- Plug-and-play installation with rewireable inline plugs for AC input and output
- Optional grid charging and optional two-way IoT access
- Protection against reverse polarity, PV overload, surge (MOV), over/under voltage and frequency, short circuit and over-temperature
Specifications
Key specifications
Standard models. Full details are in the datasheet.
| Rating | 1–20 kVA, single phase |
|---|---|
| Battery voltage | 24, 48, 96, 120 and 240 V |
| Battery types | Lead-acid; lithium as a factory-fitted option |
| PV input | MPPT Vmp 75–160 V (48 V), 165–280 V (96/120 V), 330–570 V (240 V); max Voc up to 650 V |
| PV array | 1–20 kWp nominal depending on model |
| Efficiency | MPPT peak charging ≥94%; inverter peak ≥88% (≥85% on smallest models) |
| Output | 230 V ±2%, 50 Hz, 1P+N; auto bypass |
| Grid input and charging | 230 V +10%/−20%, 50 Hz ±5%; grid charging optional |
| Overload | 101–110% 60 s, 111–150% 30 s, 151–200% 5 s |
| Enclosure and cooling | IP20 indoor; forced, temperature-controlled cooling; 0–50 °C without derating |
| Monitoring | LCD with up to 5 years data logging; optional RS-232, GPRS or Wi-Fi remote monitoring; Modbus RS-485 register map available |
Typical values. Ratings and options may vary by model; confirm with the latest datasheet.
Downloads
Documents
- SEOG series 1-phase MPPT PCU datasheetPDF · opens in a new tab
- Off-grid and hybrid inverter cataloguePDF · opens in a new tab
- SEOG product manualPDF · opens in a new tab
- Modbus protocol (RS-485) register mapping – off-gridPDF · opens in a new tab
- Solar inverter catalogue (Feb 2025)PDF · opens in a new tab
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