Designed to last without compromise. The M3L Vacuum Load Interrupter has been engineered to deliver long-term performance with zero maintenance requirements — a standard no other product in its class can match.

This single vacuum interrupter design eliminates SF6 gas entirely, utilizing an epoxy molded housing for full insulation. The result is a cleaner, safer, and more environmentally responsible solution for high-voltage switching applications.

MindCore’s patent-pending operating mechanism sets the M3L apart from legacy designs. Engineered for reliability from the first operation to the last, the M3L is built to perform under IEEE C37.30.2, C37.30.3, and C37.30.4 standards across its full service life.

With a rated maximum voltage of 72.5kV rms and a power-frequency withstand voltage of 160kV rms, the M3L delivers the performance utilities and grid operators demand — at a total cost of ownership that is truly unrivaled.