This Carlo Gavazzi SM 170 440 3-phase sequence voltage relay is a reliable and efficient piece of electrical equipment. It is made by the trusted brand Carlo Gavazzi and is suitable for various industrial applications. The relay is designed to provide efficient and reliable control of your electrical equipment. It is perfect for use in general purpose relays, relays, and electrical equipment & supplies. This item is a great addition to any business or industrial setup and is sure to provide consistent and reliable performance.