Siemens 3TH4373-0AK6 Contactor

Siemens 3TH4373-0AK6 Contactor Relay is a 10-pole AC-operated control relay from the 3TH4 family (73E), configured with 7 normally open and 3 normally closed contacts to support multi-circuit switching in industrial panels. It features screw-terminal wiring and a 120 V AC coil, with an alternate 110 V AC rating for 50 Hz systems, and is designed to meet EN 50011 standards for contactors and motor controllers. With a 10 A rating on its switched circuits, this device is suitable for energizing motors, solenoids, and other automation loads within typical commercial and industrial equipment, providing a single, compact solution when multiple circuits must be controlled in parallel or in interlocking arrangements. The combination of a high-contact-count configuration and a widely used 120 V control coil makes the 3TH4373-0AK6 a practical choice for machine builders and panel integrators seeking to simplify wiring density while preserving reliable, electrically isolated control paths.