Schneider ATV61HC25N4

1. General Overview

The ATV61HC25N4 is a 250 kW three-phase (3P) variable frequency drive, operating with a 380VAC power supply. This model is specially designed with enhanced protective coating and a built-in EMC (Electromagnetic Compatibility) filter, making it highly adaptable to harsh industrial environments characterized by high humidity and strong electromagnetic interference. It delivers stable and reliable frequency conversion control, meeting the demanding operation requirements of heavy-duty industrial equipment.

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2. Technical Specifications

Parameter	Specification
Power Rating	250 kW
Supply Voltage	380 - 480 VAC
Output Voltage	380 - 480 VAC
Cooling Mode	Forced Air Cooling
Rated Current	423.5 A
Rated Torque	720 N.m
Braking Resistor Power	250 kW
Cable Entry Specification	10/2.5 mm²
Communication Interfaces	3-Wire, 4-Wire, Ethernet/IP, Modbus TCP
Certifications	CE, UL, CSA, C-Tick, IECEx (Explosion-proof Version)
Control Mode	V/F Closed-loop Control
Control Panel Language	Chinese Panel (Equipped with Indicator Lights)
Special Configurations	Enhanced Protective Coating, Built-in EMC Filter

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3. Product Features

• High Power Density & Compact Design: Adopting a space-saving compact structure, this inverter is ideal for large-scale industrial scenarios where installation space is limited, while maintaining superior high-power output performance.
• Flexible Multi-pump Management: Supports the configuration of a programmable multi-pump card, enabling flexible and intelligent multi-pump control to meet the diversified operation needs of pump station systems and optimize energy efficiency.
• Comprehensive Safety Functions: Built-in multiple safety features including fault lockout and direction selection, effectively preventing equipment damage and operational accidents, and ensuring the safety of personnel and machinery during operation.
• Efficient Forced Air Cooling: Equipped with a built-in high-performance cooling fan, it achieves efficient heat dissipation even under continuous high-load operation, maintaining stable temperature and prolonging the service life of core components.

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4. Product Structure & Components

• Main Control Module: Acts as the core control unit, responsible for executing professional frequency conversion control algorithms, processing external input signals accurately, and outputting PWM signals to regulate motor operation.
• Power Module: Composed of high-quality IGBTs (Insulated Gate Bipolar Transistors) and rectifier diodes, undertaking the core power conversion work to ensure efficient and stable energy conversion.
• Power Supply Module: Provides stable DC power for all internal circuits of the inverter, supporting the normal operation of electronic components and control systems.
• Cooling Fan: The core component of the forced air cooling system, which accelerates air circulation and quickly dissipates heat generated by high-power operation, guaranteeing long-term stable running of the equipment.
• EMC Filter: Effectively suppresses electromagnetic radiation and interference generated during operation, enabling the product to fully comply with international electromagnetic compatibility standards.
• Input/Output Terminal Block: Designed for reliable connection of external control signals, power cables and motor cables, ensuring stable signal transmission and power supply.

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5. Application Fields

• Pump Control: Widely used for energy-saving and speed regulation control of various industrial pumps, including water pumps, oil pumps, sewage pumps and other pump station equipment, optimizing operation efficiency and reducing energy consumption.
• Fan Control: Applied to speed regulation of ventilation systems, air handling units and other fan equipment, realizing precise air volume control and adapting to different industrial ventilation and air treatment demands.
• High-power Industrial Drives: Suitable for heavy-duty industrial equipment requiring high-power drive, such as large mechanical equipment, textile machinery and other high-load operation scenarios.

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6. Installation & Maintenance Recommendations

 Installation Requirements

• Environmental Requirements: The inverter must be installed in a well-ventilated, dry and dust-free environment. Avoid direct sunlight, rain exposure and contact with corrosive gases or liquids to prevent component corrosion and performance degradation.
• Heat Dissipation Requirements: Keep sufficient ventilation space on the front, back and top of the inverter, and do not block the fan air inlet and outlet, so as to ensure the cooling system works efficiently and avoid overheating faults.
• Electrical Connection Requirements: Separate the laying of power cables, motor cables and control cables. Avoid parallel wiring or bundling to reduce electromagnetic interference and ensure stable signal and power transmission.

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