AC-1 utilisation category means this contactor is specified for resistive loads — heaters, lighting banks, or other non-inductive circuits. For motor loads (AC-3), you'd need a different TeSys K variant; this one is not rated for inductive switching. The 200…208 V AC coil is a narrow-band control voltage, common in North American 208Y/120 V panels. Drop-out threshold is 0.2…0.75 Uc below 50 °C, so the contactor releases reliably on a sagging control supply. Mechanical interlocking between the two contactor halves prevents both from closing simultaneously — essential for reversing drives where a cross-conduction short would be catastrophic. The interlock is built into the assembly, not an add-on accessory.
Mounts on DIN rail or plate. Screw clamp terminals accept 1.5…4 mm² solid or 0.75…4 mm² flexible wire (one or two conductors per clamp). Tightening torque is 1.3 N·m with a #2 Philips or 6 mm flathead. IP20 finger-safe protection per VDE 0106 — suitable for enclosed panels where operators don't contact live parts during normal operation.
Designed and tested to IEC 60947, NF C 63-110, BS 5424, and VDE 0660. Rated insulation voltage is 690 V per IEC 60947-4-1, 600 V per UL 508 and CSA C22.2 No 14. Flame retardance meets UL 94 V1 and NF F 16-101/102 requirements.