Siemens 3TY7561-1N Industrial Time Delay Relay

The Siemens 3TY7561-1N is a left‑hand auxiliary switch block for 3TL6 and 3TL8 contactors, delivering two normally open and two normally closed auxiliary contacts to extend signaling and interlock capabilities in industrial control circuits. It features 690 V insulation rating with a surge voltage resistance of 6 kV, front IP20 protection, and a mechanical life of about 10,000,000 switching cycles, making it suitable for demanding automation environments. The unit measures 70 mm high, 24 mm wide, and 51.5 mm deep and attaches via snap‑on mounting with screw‑type terminals for reliable wiring. It accepts solid or stranded conductors in the 0.5–2.5 mm² range (and AWG 18–12 equivalents) for both auxiliary and control circuits. Rated currents for the auxiliary contacts are specified as DC‑12: up to 10 A at 24 V, 3.2 A at 110 V, and 0.9 A at 220 V; and DC‑13: up to 0.3 A at 24 V, 0.3 A at 48 V, and 0.3 A at 60 V. Designed to augment 3TL6/3TL8 top assemblies, this block provides compact, durable auxiliary signaling suitable for panel control, interlocking, and status indication tasks in industrial automation without occupying additional control space.