RZ3A Series 3-Phase Solid-State Relays

Carlo Gavazzi’s RZ3A series solid-state relays are designed to switch various loads such as heating elements, motors, and transformers. The RZ3A can switch high voltages up to 690 V_AC(RMS). Various models are capable of handling resistive loads up to 75 A_AC(RMS) and motor loads up to 20 A_AC(RMS) when used with a corresponding heat sink. These relays have a built-in varistor which secures transient protection for heavy industrial applications. For higher reliability and load cycle capability, three semiconductor power units are soldered directly on to a direct copper bonded (DCB) substrate. The RZ3A series is available in both AC and DC control versions with a built-in LED status indication for applied control voltage and optional overtemperature alarm output.