Mechanical lock CTX3 3P 9-150A 2NC 416880

Mechanical lock for Legrand CTX3 contactors

The CTX3 3P 9-150A 2NC mechanical lock is an element that increases safety and prevents accidental switching on of the contactor during maintenance or service work. This is particularly important in installations where it is required that the circuit remains isolated from the power supply. The lock is designed to work with contactors of the CTX3 series, offering a simple and effective way to physically protect against unauthorized start-up.

Application and functionality

The mechanical lock finds application wherever additional protection against accidental switching on of an electrical circuit is required. It is ideal during:

• Maintenance and repair work on equipment powered by a contactor.
• Replacement of elements of the electrical installation.
• Situations where it is necessary to lock the contactor in the off position for safety reasons.

Thanks to two auxiliary contacts (2NC), the lock can also be used in systems for signaling the off state, which further increases the level of safety. The lock is easy and intuitive to install, which saves time and minimizes the risk of errors during installation.

Design and compatibility

The CTX3 mechanical lock has been designed with reliability and durability in mind. It is compatible with CTX3 contactors with a rated current of 9A to 150A. Made of high-quality materials, it ensures long-term operation even in harsh industrial conditions. The use of the lock does not require modification of the existing installation – mounting is done directly on the contactor, without the need for additional tools or fixing elements (depending on the specific model of the contactor). This lock is an integral part of the electrical installation safety system, providing protection for both personnel working on the installation and the equipment itself.