Description
Schneider A9R44425 | Acti 9 iID – RCCB – 4P – 25A – 300mA – type AC
Technical Specifications A9R44425
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Product Code: A9R44425
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Product Range: Acti 9 iID
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Device Type: Residual Current Circuit Breaker (RCCB)
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Number of Poles: 4 (Three-phase + Neutral)
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Rated Current (In): 25 A
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Rated Residual Operating Current (IΔn): 300 mA
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Type: Type AC (detects sinusoidal alternating residual currents)
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Rated Voltage: 400V AC (for three-phase systems)
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Rated Frequency: 50/60 Hz
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Tripping Characteristic: Instantaneous
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Mounting Type: DIN rail
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Degree of Protection: IP20 (protection against accidental contact)
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Standards Compliance: IEC 61008-1
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Test Button: Yes (for manual testing)
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Mechanical Durability: > 5000 operations
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Electrical Durability: > 2000 operations at rated load
Key Features
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25A Rated Current: Suitable for low-power circuits that require protection against earth leakage currents.
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300mA Sensitivity: Designed for fire protection, it detects larger residual currents that may not present an immediate shock risk but could lead to overheating or fire in electrical systems.
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Type AC Detection: Capable of detecting sinusoidal AC leakage currents, making it suitable for typical residential and commercial installations.
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4-Pole Protection: Provides complete protection for all conductors in three-phase systems, ensuring that all phases and neutral are disconnected in the event of a fault.
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Instantaneous Tripping: The RCCB reacts immediately when the leakage current exceeds the rated threshold, minimizing the risk of damage or fire.
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Test Button: Allows easy testing of the RCCB to verify its operation, ensuring the system remains safe and functional.
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DIN Rail Mounting: Designed for easy integration into electrical distribution panels, saving space and simplifying installation.
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Compliance with IEC Standards: Conforms to IEC 61008-1, ensuring global safety and performance standards.
Applications
The A9R44425 RCCB is intended for use in applications where fire protection is a primary concern due to earth leakage currents, especially in three-phase systems. It is suitable for:
Industrial Installations
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Protects circuits in factories, manufacturing plants, and other industrial facilities that use three-phase electrical systems.
Commercial Buildings
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Provides protection for electrical circuits in offices, shops, and warehouses, where extended leakage currents could present fire risks, especially in older or poorly maintained systems.
Residential Applications (Three-Phase Systems)
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Suitable for large residential complexes or buildings with three-phase power systems, offering protection against potential fire risks due to earth leakage currents.
Electrical Distribution Panels
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Ideal for installation in distribution boards or control panels, offering protection to circuits in larger or more complex electrical installations.

