Siemens 3TH43 73E LOC-2D IEC Rated Control Relay

Siemens 3TH43 73E LOC-2D IEC Rated Control Relay is a DC-operated, 10‑pole control relay from the 3TH43 family with a 24 V DC coil and a load rating up to 16 A. It provides seven normally open and three normally closed contacts, enabling reliable signaling and control in IEC 61131‑based control schemes. The LOC-2D variant uses screw-terminal connections for the auxiliary and control circuits, aligning with common Siemens control‑relay installations. Typical applications include control signaling, interlocking, and sequencing tasks in automation panels where a compact, IEC‑rated relay is required for 24 V DC control signals and up to 16 A switching.