Isolation Switch Legrand LE-406469 three-phase 100 A

Legrand LE-406469 is a three-phase 100 A isolation switch designed to provide a reliable manual means of disconnecting electrical circuits in industrial and commercial installations. The device is intended for use in switchboards and distribution panels where a dedicated 3‑pole isolator is required for maintenance, repair or emergency shutdown. Constructed to meet typical installation practices, the switch delivers clear open/closed indication and a compact form factor for straightforward mounting in electrical enclosures.

Advantages

The isolation switch offers a robust mechanical construction and simple manual operation that allows quick and unambiguous disconnection of three-phase supplies. It is designed for secure mounting in distribution panels and provides visible separation of contacts to assist safe maintenance procedures. The switch supports routine isolation tasks without requiring complex auxiliary control, reducing installation complexity in systems that need a dedicated 3‑pole disconnecting device.

Suitable for

• Industrial switchboards and motor control centers requiring a 3‑pole isolator
• Commercial distribution panels for service and maintenance isolation
• Equipment and machinery circuits where a manual 100 A disconnect is needed
• Emergency shutdown points in medium-power electrical installations

Key specifications

• Number of poles: 3 (three-phase)
• Rated current: 100 A
• Operation: manual knife/rotary isolator style typical for visible disconnection
• Mounting: panel/switchboard mounting compatible with standard electrical enclosures
• Contact separation: visible/open contact indication for safe isolation
• Intended use: industrial and commercial low-voltage distribution systems

How to use

Install the Legrand three-phase 100 A isolation switch into an appropriate switchboard or distribution panel following local wiring regulations and standard installation practices. Ensure power is removed and verified before making connections. Wire each phase conductor to the corresponding terminal and secure terminals to the recommended torque values. Use the manual actuator to switch to the open position for isolation during maintenance or repairs, and confirm visible contact separation where available. Reclose only after the work is completed and safety checks are performed.

Usage recommendations

Before installation and use, consult relevant electrical codes and Legrand installation instructions. Verify compatibility with system voltage and fault-current conditions, and ensure protective devices upstream are correctly rated. Periodically inspect mechanical operation and terminal tightness as part of routine maintenance.