Siemens 3TX7130-ODf13 Open Power Relay Socket

Siemens 3TX7130-ODf13 Open Power Relay Socket is a socket-mounted, open-frame relay module in Siemens' 3TX7130 family. It features DPDT contacts (two Form C) rated for 40 A, suitable for switching high-current loads in industrial equipment. The coil is designed for 120 V AC operation, enabling direct wiring to standard control circuits without an intermediate relay. The open power relay design allows easy access to wiring terminals and straightforward replacement in control panels or machine controllers. In heavy-duty control applications — such as motor starters, heating control, and power distribution sequences — the 3TX7130 series provides robust switching performance with 40 A contact rating and DPDT configuration. The socket-mounted variant simplifies installation and service, allowing the relay to be plugged into a compatible socket for quick field replacement and reduced downtime. This model is commonly used in industrial automation environments requiring reliable, high-current signaling and power switching in a compact footprint.