Müller Martini 3899.6024.4 Solid-state relay

The coupling relay, also known as a solid-state relay, SSR, or electronic relay, is an electrical solid-state relay. It is available from Müller Martini under type number 3899.6024.4. Another part number is RZ3A40D25 from Carlo Gavazzi. It has the dimensions 10 x 4 x 7 cm and weighs 0.35 kg. Coupling relays are used for wear-free switching of electrical loads using semiconductor technology, which enables a long service life and fast switching operations. They provide galvanic isolation between the control and load circuits. Typical applications include automation technology for the precise control of machines and systems, such as in temperature controls in heating systems or the actuation of smaller electric motors in production lines.