07 — SOLAR PUMP INVERTER

IDEEI S81 Hybrid Solar Pump Inverter 0.75–200kW AC/DC

0.75–200kWS81 D3S81 D5S81 T3AC/DCMPPT ≥99%RS485Wi-Fi optional

In Stock Price on Request MOQ 1 UNIT

IDEEI S81 hybrid solar pump inverter for 0.75–200kW applications, with MPPT solar input, compatible grid/generator AC input, soft start, V/F and vector control, pump protection, RS485 and optional IoT/Wi-Fi.

Get a Quote→ 24h Reply WhatsApp→ Chat Now

F01Solar and AC Flexibility: PV DC input plus compatible grid/generator AC input for project-specific operation.
F02≥99% MPPT Efficiency: Maximizes available solar energy as irradiance changes.
F03Soft Start and Flexible Motor Control: V/F and vector control with configurable motor-phase options.
F04Pump Protection and Sensor Support: Dry-run, over-voltage, over-current, short-circuit, over-temperature and phase-loss protection; DI/DO and AI/AO support.
F05Remote Communication: RS485 Modbus RTU with optional IoT or Wi-Fi module.

DOC DS-DESCSERIES SOLAR PUMP INVERTERREV 2026-A

The IDEEI S81 is a flexible solar pump and general-purpose inverter platform for 0.75kW to 200kW applications. It combines MPPT solar pumping, compatible grid/generator AC input, soft starting, V/F and vector control, and multiple pump-protection functions. The platform can be configured for different voltage and motor branches, including project-specific single-phase motor operation.

Key Features

Solar + AC flexibility
PV DC input with compatible grid/generator AC input for flexible site configuration.

High-efficiency MPPT
MPPT efficiency ≥99% to maximize available solar energy.

Soft start
Controlled acceleration reduces starting impact on the motor and water system.

Multiple protection
Dry-run, over-voltage, over-current, short-circuit, over-temperature and phase-loss protection.

Sensor & I/O support
Multiple DI/DO and AI/AO points for water-level and pressure signals.

Remote communication
RS485 Modbus RTU; optional IoT or Wi-Fi module.

Model Selection

Series	Motor power	PV DC input	AC input	Output class
S81 D3	0.75–4kW	150–450V DC	220–240V AC, 1-phase	220–240V class; confirm motor phase configuration
S81 D5	0.75–30kW	250–900V DC	380–460V AC, 3-phase	380–460V AC, 3-phase
S81 T3	37–200kW	350–900V DC	380–440V AC, 3-phase	380–440V AC, 3-phase

Configuration note: S81 hardware and motor-phase options vary by model. Confirm whether the project requires single-phase or three-phase motor output and whether PV/AC sources will alternate or operate in a hybrid configuration before ordering.

General Specifications

Output frequency	0–320Hz
Control mode	V/F control, vector control
MPPT efficiency	≥99%
Communication	RS485 (Modbus RTU); optional IoT / Wi-Fi
Protection level	IP20 inverter; optional IP65 project cabinet
Working environment	-10°C to +50°C, ≤95% RH, no condensation
Installation / cooling	Wall-mounted or cabinet installation; forced-air cooling
Certification	CE; ISO 9001 quality management

Typical Applications

Solar agricultural irrigation and deep-well pumping
Water-tank filling and pressure-control systems
Rural, livestock and municipal water supply
Sites requiring PV power with grid or generator backup
General pump, fan and motor-speed applications after configuration confirmation

Information Required for Model Selection

Motor nameplate: power, voltage, phase, rated current and motor type
Required head, flow, pressure and daily operating hours
PV module Voc, Vmp and wattage; series/parallel layout
Grid/generator voltage, phase, frequency and source-changeover requirement
Water-level or pressure sensor type, communication and remote-monitoring requirements
Cable length, site altitude, temperature and enclosure requirement

Warranty & Support

Standard 2-year limited warranty. Confirmed manufacturing defects are covered by free replacement of faulty parts. Damage caused by water ingress, incorrect wiring or improper operation is excluded. Free technical support is provided throughout commissioning and operation.

Engineering selection & bulk orders

Send the nameplate. We size the drive.

Send the motor nameplate, PV and AC supply data, head, flow, cable length and quantity. IDEEI will confirm the suitable S81 branch and parameter configuration.

Email Us WhatsApp

Frequently Asked Questions

What is the IDEEI S81 used for?

The S81 is a hybrid solar pump inverter that drives 0.75–200kW AC water pumps for agricultural irrigation, livestock watering, and rural water supply.

What does “hybrid” mean for the S81?

Hybrid means dual power input: solar DC from PV panels plus AC from the grid or a generator. The S81 automatically switches between sources, so irrigation continues at night or during cloudy weather.

Can the S81 run on grid power alone?

Yes. With AC input connected, the S81 can drive the pump from grid or generator power alone, making it suitable for areas with unstable sunlight.

What is the protection rating?

The S81 inverter is IP20 rated; an optional IP65 project cabinet is available for harsh outdoor environments.

Which motors can the S81 drive?

The S81 supports 0.75–200kW three-phase AC motors — submersible, surface, and deep-well pumps — with V/F and vector control and 0–320Hz output frequency range.

Can I monitor the S81 remotely? What certifications does it have?

Yes — RS485 (Modbus RTU) is standard, with optional IoT/Wi-Fi for remote monitoring. The S81 is CE certified, built under ISO 9001, and OEM/ODM is supported. Contact us for a quotation.

Power range: 0.75–200kW PV input: 150–900V DC by model AC input: 220–240V single-phase or 380–460V three-phase by model Output frequency: 0–320Hz Protection: IP20 inverter; optional IP65 cabinet

Talk to an engineerFACTORY-DIRECT · MON–SAT 8:30–17:30 (GMT+8)

Get a Quote→ Email Us WhatsApp+86 183 5724 1165