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Schneider Electric A9S4P063 Main Switch Disconnector

The Schneider Electric A9S4P063 is a high-performance 4-pole (3P+N) main switch disconnector from the world-class Acti9 iSW series. Designed specifically for demanding industrial and commercial 3-phase circuits, this 63A device provides definitive isolation with a high-tier AC-23A utilization category, ensuring safe control of motor loads and inductive equipment. Its robust thermoplastic housing and DIN rail compatibility make it a reliable cornerstone for modern electrical distribution boards requiring secondary or primary isolation points.

Quick Answer

The A9S4P063 is best used as a manual isolation point for 3-phase + Neutral power supplies in distribution boards up to 63A. It is ideal for maintenance safety in commercial panels where overcurrent protection is already managed by upstream breakers.

✓63A Continuous Current Rating: Optimized for high-load 3-phase commercial and industrial applications.
✓4-Pole Configuration (3P+N): Ensures total circuit isolation including the neutral line for maximum operator safety.
✓AC-23A Utilization Category: Specifically engineered for making and breaking highly inductive loads and motor circuits.
✓Acti9 iSW Modular Design: Seamlessly integrates with standard 35mm DIN rail systems and Schneider busbars.
✓Positive Contact Indication: Features a manual toggle mechanism that provides clear visual confirmation of the isolation status.

Choose the Schneider Electric A9S4P063 if you require a premium-grade, 4-pole manual isolation point for a 63A 3-phase system. It is the superior choice for professionals who prioritize the reliability of the Acti9 ecosystem and need a dedicated switch for motor loads or primary panel isolation.

✓ Who Should Buy

  • •Electrical contractors installing 3-phase distribution boards in commercial buildings.
  • •Industrial maintenance engineers needing a dedicated isolation switch for motor control centers.
  • •Panel builders utilizing the Schneider Acti9 ecosystem for modular consistency and aesthetic uniformity.

✕ Who Should Avoid

  • •Users requiring integrated circuit protection (this model does not provide overload or short-circuit tripping).
  • •Residential users on single-phase power systems where a 4-pole 63A switch would be oversized and unnecessary.
Product Overview
The Schneider Electric A9S4P063 represents the gold standard in modular isolation technology. As a core component of the Acti9 iSW range, it is engineered for the manual control and disconnection of electrical distribution circuits. The device features a rugged thermoplastic enclosure that provides excellent dielectric strength and thermal stability, ensuring long-term durability in environments with temperatures up to 415V. Its 'Made in France' heritage reflects a commitment to precision engineering and rigorous safety standards. Critically, the A9S4P063 is a pure switch disconnector, meaning it provides isolation functionality without internal overload or short-circuit trip mechanisms. It is intended to work in coordination with MCBs or MCCBs, acting as the main incoming or outgoing disconnect switch. The screw terminal interface is designed for high-torque connections, which significantly reduces contact resistance and heat dissipation during peak 63A operation, preventing premature wear on the electrical infrastructure.

BrandSchneider Electric
Model NameA9S4P063
TypeMain Switch Disconnector
SeriesActi9 iSW
Housing MaterialThermoplastic
Country Of OriginFrance
Release Year2010

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Engineering Analysis
The A9S4P063 utilizes a heavy-duty manual toggle mechanism that provides tactile feedback and high mechanical endurance, rated for thousands of cycles. While it lacks an electronic trip unit, its isolation function is certified according to international standards, providing a visible gap for safe maintenance. The IP40 rating on the front face ensures protection against solid objects, making it suitable for installation within standard distribution boards. Its 4-module width is standardized for the Acti9 ecosystem, allowing for quick and clean busbar distribution.

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