The CARLO GAVAZZI RZ3A series is a family of solid-state relays engineered for robust industrial applications. These relays are capable of switching high voltages up to 690 VACrms and are designed to handle demanding loads. The built-in varistor provides transient protection, while the DCB substrate enhances reliability and cycle capability. Available in AC or DC control versions, the RZ3A relays offer LED status indication for control voltage and over-temperature alarm (optional). They are ideal for applications such as plastic extrusion machines, thermoforming machines, and electrical ovens.