Terminals of the MIR series are microprocessor devices designed to perform the functions of relay protection, automation, measurement, registration, oscillography, signaling and control for various connections of distribution networks with a rated voltage of 6-35 kV. The devices are used in secondary switching circuits of power stations, substations and switchgears with alternating and direct operating current. The terminal can provide circuit breaker closing both with synchronism control between two independent sources, and perform the function of a synchronizer. Regardless of the type of protected element of the electrical system, common software is written to the terminal, which ensures the performance of the necessary functions.

The terminals are freely configurable. The use of programmable logic allows you to modify typical functional logic circuits, taking into account the specifics of the protected object.