The ABB ACS355‑03E‑44A0‑4 with N827 solar pump software is a compact yet powerful IP20-rated solar pump drive from ABB’s ACS355 series. Designed for harnessing photovoltaic power directly, it incorporates MPPT, dry‑run prevention, and sensorless flow control—all housed in a sturdy industrial enclosure. Rated 18.5 kW and 44 A, it’s ideal for standalone irrigation, remote water supply, and off‑grid pumping systems ABB Library+7Inverter Drive Supermarket+7ASB Drives+7.

🔋 Solar-Pump Features

• MPPT (Maximum Power Point Tracking) – Maximizes solar panel power output, adapting to sunlight fluctuations for optimal pump efficiency cse-distributors.co.ukcse-distributors.co.uk.

• Dry-Run Protection & Stop – Automatically shuts down the pump when no flow is detected, safeguarding against damage cse-distributors.co.ukcse-distributors.co.uk.

• Sensorless Flow Control – Provides precise pump control without the need for external flow sensors, improving reliability and reducing installation costs cse-distributors.co.ukcse-distributors.co.uk.

• Auto Start/Stop on Solar Availability – Enables the drive to activate or deactivate based on solar irradiation, improving system longevity and reducing energy waste cse-distributors.co.uk.

🔌 Power & Control Specifications

• Supply Voltage: 3-phase 380–480 VAC, 50/60 Hz

• Continuous Current: 44 A, supports up to 18.5 kW motor load cse-distributors.co.uk+3cse-distributors.co.uk+3Manuals++3Inverter Drive Supermarket+1RS Components+1.

• Overload Capacity: 150% for 60 s; 175% for 2 s – ideal for high startup torque demands cse-distributors.co.uk+1ASB Drives+1.

• Control Modes: Supports both V/f and sensorless vector control modes for flexibility across motor types Inverter Drive Supermarket+2Inverter Drive Supermarket+2ASB Drives+2.

🛡 Safety & EMC Compliance

• Built‑in STI (STO) – Implements Safe Torque Off to SIL 3 / PL e standards, ensuring safe disconnection of power during stoppages.

• EMC Filter – Category C3 filter per EN 61800‑3 standards allows long cable runs (up to 10 m) without external filtering.

🏗 Mechanical & Connectivity Specs

• Frame & Enclosure: Compact IP20, cubicle mount, R4 frame size.

• Dimensions: 260 mm (W) × 169 mm (D) × 181 mm (H); reach increases to 244 mm including mounting hardware cse-distributors.co.ukInverter Drive Supermarket.

• Weight: Approximately 5.1 kg Inverter Drive Supermarketcse-distributors.co.uk.

• I/O & Interfaces:

  • Analog & digital inputs/outputs supporting MPPT and status control.

  • RS‑485 (Modbus RTU) plus RJ‑45 port for external keypad or PC/Bluetooth configuration.

  • Optional integration of Profibus, CANopen, DeviceNet, and EtherCAT via add-on cards ASB Drives.

⚙ Additional Features

• Pump‑Optimized Logic – Driver includes pump-specific tuning and logic to ensure reliable performance under varying solar conditions.

• Fast Setup & Configuration – Programmed using ABB’s DriveWindow or FlashDrop tools for quick deployment.

• Dynamic Braking Capability – Compatible with brake chopper modules for controlled pump deceleration.

🎯 Ideal Applications

This drive targets solar-powered and hybrid water systems:

• Off-grid irrigation and crop watering

• Remote water supplies with PV integration

• Fish-farming, livestock watering, and eco-conscious pump solutions cse-distributors.co.uk+1Manuals++1cse-distributors.co.uk.

📦 Ordering & Accessories

• Model: ACS355‑03E‑44A0‑4 N827 (ABB PN)

• Optional Add-ons:

  • Remote keypad (ACS‑CP range)

  • Input reactors, EMC filters, and brake resistors

  • Fieldbus communication modules (Profibus, CANopen, EtherCAT, etc.)

  • IP66/67 enclosures for harsh environments cse-distributors.co.uk+7cse-distributors.co.uk+7ASB Drives+7Manuals+ASB Drives

✅ Summary

The ABB ACS355‑03E‑44A0‑4 N827 solar pump drive combines solar‑optimized logic (MPPT, dry‑run, auto start/stop) with industrial robustness (STO, vector control, EMC compliance) in a compact IP20 frame. With a capacity up to 18.5 kW, it delivers a turnkey solution for efficient, off‑grid pumping—cutting component count and deployment costs.