FatafatService Logo
No Image Available

Schneider Electric Easy9 4P 40A Main Switch Disconnector

The Schneider Electric Easy9 4P 40A (Model EZ9S16440) is a high-reliability manual switch-disconnector engineered for safe circuit isolation in 3-phase electrical systems. Operating at 415V with a dedicated neutral pole, this 4-pole device is specifically designed to provide a secure point of disconnection for maintenance and emergency stop scenarios. As part of the globally trusted Easy9 series, it combines a compact DIN-rail footprint with high-quality thermoplastic housing, ensuring robust performance in residential and light commercial distribution boards.

Quick Answer

This 40A 4-pole switch is the primary manual isolator for 3-phase and neutral (TPN) distribution boards. It is used to safely cut power to an entire sub-circuit or panel for maintenance, though it does not provide automatic overload or short-circuit protection.

✓4-Pole (4P) configuration ensures simultaneous isolation of all three phases and the neutral line.
✓Rated for AC-23A utilization, making it suitable for switching highly inductive loads and frequent operation.
✓High-grade thermoplastic housing with an IP40 rating for enhanced dust protection in indoor panels.
✓Seamless DIN-rail mounting compatibility, optimized for the Schneider Easy9 consumer unit ecosystem.
✓Clear manual toggle mechanism providing tactile and visual confirmation of the switch state (On/Off).

Choose the Schneider Electric Easy9 4P 40A if you require a branded, reliable, and space-saving 3-phase isolator. It is the ideal choice for contractors seeking Schneider's quality at an accessible price point for standard residential or light industrial panel boards.

✓ Who Should Buy

  • •Licensed electricians installing 3-phase (TPN) distribution boards in residential apartments.
  • •Small business owners needing a dedicated manual isolator for 3-phase machinery or HVAC units.
  • •Property developers looking for a cost-effective but globally recognized brand for utility room electrical panels.

✕ Who Should Avoid

  • •Users looking for automatic protection; this device will NOT trip during a short circuit or overload (Use an MCB/MCCB instead).
  • •Heavy industrial environments requiring a breaking capacity (kA) rating for high-fault current zones.
Product Overview
The Schneider Electric Easy9 40A 4P Main Switch acts as the 'gatekeeper' for your 3-phase electrical installation. Unlike circuit breakers that trip during faults, this switch-disconnector is built for durability and manual control, allowing users to physically break the circuit under load. Its 40-ampere capacity is perfectly calibrated for medium-sized residential projects or small-scale commercial units where a dedicated, branded isolator is required for compliance and safety. Designed with the installer in mind, the Easy9 series prioritizes ease of wiring. The 4P configuration is essential for modern safety standards, as it isolates the neutral path, preventing any potential shock from neutral-to-earth faults during downstream maintenance. This switch represents a cost-effective yet uncompromising entry into the Schneider Electric professional-grade electrical catalog.

BrandSchneider Electric
Model NameEasy9 4P 40A
TypeMain Switch Disconnector
SeriesEasy9
Housing MaterialThermoplastic
Country Of OriginChina
Release Year2016

Related Products

Engineering Analysis
From an engineering perspective, the 4P 40A switch utilizes high-conductivity screw terminals that ensure a low-resistance path, minimizing heat dissipation during continuous operation at 415V. The internal cam-action mechanism is designed for 'positive break' functionality; the physical position of the toggle is directly linked to the contact state, providing a reliable safety guarantee for electricians. The 100% thermoplastic enclosure offers high dielectric strength and thermal stability up to its rated limits, ensuring the device does not deform under moderate environmental heat.

Technical Support & FAQs