Name: LMI-XB Mechanical Interlock
Brand: Chint

LMI-XB Mechanical Interlock

The LMI-XB Mechanical Interlock is designed to ensure that two main circuits cannot be operated simultaneously. It combines two-stage (or multi-stage) circuit breakers with an interlock conversion mechanism for safe manual switching between power sources. Suitable for residential, commercial, and industrial applications, such as hotels, offices, and shopping centers, it enhances system safety by preventing short-circuits or parallel connections. The compact 9 mm design, wide –35 °C to +70 °C temperature range, and simple DIN-rail installation make it reliable and easy to use

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FAQs

What is the main function of the LMI-XB Mechanical Interlock?

It ensures that two main circuits (such as mains and backup) cannot operate at the same time, preventing electrical faults caused by simultaneous connection.

Where can the LMI-XB be applied?

The LMI-XB is widely used in residential, commercial, and light industrial systems requiring reliable manual changeover between dual power supplies.

How is the LMI-XB installed?

It is mounted between two or more stage circuit breakers (e.g., NXB-63 series) using standard DIN-rail installation.

What are its environmental operating limits?

It functions reliably within –35 °C to +70 °C, up to 3000 m altitude, and relative humidity below 90 % at 20 °C, ensuring stability in varied environments.

Why choose the LMI-XB model?

The LMI-XB offers compact construction, manual interlocking precision, and universal compatibility with NXB-series circuit breakers—ideal for systems needing dependable mechanical isolation.

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LMI-XB Mechanical Interlock

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