Its conventional free-air thermal current (Ith) is 20 A at 50 °C, and the rated operational current (Ie) is 20 A at 690 V AC, 50/60 Hz. The coil is 220 V DC. This contactor is certified to EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1 — a fully documented compliance package for global panel builds.
The AC-1 utilisation category rating of 20 A at 690 V means this contactor is designed for switching resistive loads — heaters, ovens, lighting banks — not motor starting. For motor duty (AC-3), a different TeSys K variant would be required. The 4 NO pole configuration gives four independent switching paths, all normally open. The mechanical durability of 10 million cycles and a maximum operating rate of 3600 cycles per hour suit it for high-duty-cycle resistive switching applications. The safety reliability level is documented with B10d values: 1,369,863 cycles at nominal load and 20,000,000 cycles at mechanical load, conforming to EN/ISO 13849-1. This makes the part traceable for functional-safety assessments in machine guarding circuits, provided the application matches the AC-1 load profile.
Screw-clamp terminals accept a Philips No 2 or flat 6 mm screwdriver, torqued to 1.3 N·m.