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Schneider Electric A9KS15240BQ

The Schneider Electric A9KS15240BQ is a high-performance 40A 2-pole switch disconnector from the prestigious Acti9 iSW-NA series. Designed for 415V systems, this 1-phase + Neutral isolator is engineered for heavy-duty load breaking under the AC-23A utilization category. Made in France with high-grade thermoplastic housing, it provides a reliable mechanical isolation point for commercial and industrial distribution boards, ensuring safe downstream maintenance with a clear 'positive contact' indication.

Quick Answer

The A9KS15240BQ is a 40A DIN-rail mounted isolator used as a primary or secondary main switch in electrical panels to manually disconnect power. It is specifically compatible with 1-phase + Neutral setups requiring robust AC-23A switching capability.

✓High-reliability 40A current rating for industrial and commercial distribution.
✓2-Pole (1P+N) configuration for simultaneous phase and neutral isolation.
✓AC-23A utilization category allows for switching of highly inductive loads.
✓Compact DIN Rail mounting with IP40 protection on the front face.
✓Part of the Acti9 iSW-NA series, ensuring seamless modular coordination.

Choose the Schneider Electric A9KS15240BQ if you require a premium, space-saving 40A isolator that can handle heavy-duty inductive loads. It is the ideal 'Master Switch' for DIN rail panels where safety, brand reliability, and compliance with AC-23A standards are non-negotiable.

✓ Who Should Buy

  • •Electrical contractors building high-spec residential or commercial distribution boards.
  • •Industrial facility managers requiring a 40A local isolator for motor-driven machinery.
  • •Users upgrading to the Schneider Acti9 ecosystem seeking perfect component modularity.

✕ Who Should Avoid

  • •Users looking for a device with built-in short-circuit or overload protection (needs an MCB).
  • •Applications requiring more than 40A of continuous current flow.
  • •DC-specific circuits where an AC-rated disconnector is inappropriate.
Product Overview
The Schneider Electric A9KS15240BQ represents the pinnacle of modular isolation technology. As a non-automatic switch disconnector, it focuses purely on the mechanical integrity of the circuit break. Unlike standard circuit breakers, this model does not provide overload or short-circuit protection; instead, it is designed to withstand the stress of switching mixed resistive and inductive loads (AC-23A) repeatedly without contact degradation. This makes it an essential component for isolating machinery, HVAC systems, or sub-panels in a multi-story layout. Built with a rotary operation mechanism and housed in flame-retardant thermoplastic, the A9KS15240BQ is optimized for longevity. Its screw terminal design ensures a high-torque connection, minimizing heat generation at the contact points. Engineered in France, this model follows the strict IEC standards for isolation function, providing users with visible and physical assurance that the circuit is safely de-energized during maintenance procedures.

BrandSchneider Electric
Model NameA9KS15240BQ
TypeMain Switch Disconnector
SeriesActi9 iSW-NA
Housing MaterialThermoplastic
Country Of OriginFrance
Release Year2012

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Engineering Analysis
From an engineering perspective, the A9KS15240BQ utilizes a high-end contact alloy designed to resist arcing during operation at its full 415V/40A rating. The rotary mechanism provides a more deliberate tactile feedback compared to standard toggles, reducing the risk of accidental switching. The IP40 rating ensures protection against solid objects larger than 1mm, while the thermoplastic housing offers excellent dielectric strength. Its 1-year warranty is backed by Schneider’s global reputation for 'Green Premium' sustainability and rigorous quality control in French manufacturing facilities.

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