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Schneider Electric Acti9 xSW 4P 40A

The Schneider Electric Acti9 xSW 4P 40A is a premium modular switch-disconnector designed for the demanding requirements of industrial and commercial 3-phase electrical distribution. As a core component of the world-renowned Acti9 series, this 4-pole device provides a reliable 40A isolation point for 415V circuits. Engineered with a thermoplastic housing and a robust manual toggle mechanism, it offers dedicated isolation functionality without integral overcurrent protection, making it the ideal primary disconnect for sub-panels and motor control circuits where safety and high-duty cycle performance (AC-23A) are non-negotiable.

Quick Answer

The Acti9 xSW 40A 4P is a 3-phase + Neutral isolator used to safely cut off power to a circuit for maintenance. It is DIN-rail compatible and rated for AC-23A loads, making it perfect for industrial motor circuits and commercial distribution boards.

✓4-Pole Configuration: Simultaneous isolation of 3 phases and Neutral for maximum safety.
✓AC-23A Utilization Category: High-performance switching suitable for highly inductive loads and frequent operation.
✓Premium Acti9 Design: Seamless modular integration with Schneider DIN-rail circuit breakers and accessories.
✓IP40 Rated Housing: High-quality thermoplastic construction ensures durability in standard indoor environments.
✓Positive Contact Indication: Explicit isolation function capability provides peace of mind during maintenance procedures.

Choose the Schneider Acti9 xSW 4P 40A if you require a high-reliability 3-phase isolator from a tier-1 brand that fits perfectly into standard modular DIN-rail enclosures. It is the best choice for contractors who prioritize safety, 'AC-23A' heavy-duty ratings, and the aesthetics of a unified Acti9 panel setup.

✓ Who Should Buy

  • •Industrial Panel Builders requiring reliable 3-Phase + Neutral isolation.
  • •Commercial Electricians upgrading distribution boards to Acti9 standards.
  • •HVAC Contractors needing a 40A rated disconnect for large 3-phase motor units.

✕ Who Should Avoid

  • •Residential users looking for a circuit breaker (this unit has NO overload/short circuit protection).
  • •Applications requiring DC current isolation (this is rated for AC-23A only).
Product Overview
The Schneider Electric Acti9 xSW 4P 40A represents the gold standard in modular isolation. Launched as part of the 2015 Acti9 series refresh, this specific model (xSW) focuses on pure disconnection power. Unlike standard switches, the AC-23A rating signifies that this unit can handle the switching of motors or other highly inductive loads, which is critical in industrial environments. Its 4-pole design is particularly vital in Three-Phase + Neutral systems, ensuring that no stray current remains when the system is toggled off. Installation is streamlined via the standard DIN-rail mounting system and secure screw terminals, which are engineered to resist loosening under vibration. While it does not provide short-circuit or overload protection—requiring it to be paired with an upstream MCB or MCCB—its role as a visible, manual disconnect is essential for compliance with modern electrical safety standards. The 'Made in France' heritage ensures a level of manufacturing precision that translated to a long mechanical life cycle and consistent contact resistance.

BrandSchneider Electric
Model NameActi9 xSW 4P 40A
TypeMain Switch Disconnector
SeriesActi9 xSW
Housing MaterialThermoplastic
Country Of OriginFrance
Release Year2015

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Engineering Analysis
The engineering core of the xSW 4P 40A lies in its manual toggle mechanism, which features a fast-make, fast-break action to minimize arcing. With a rated voltage of 415V, the internal spacing and creepage distances are optimized for 3-phase industrial grids. The screw terminals are designed for high torque, ensuring a gas-tight connection that prevents hotspots at the 40A maximum rated current. Furthermore, the IP40 rating indicates protection against solid objects greater than 1mm, suitable for installation within ventilated distribution boards.

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