It connects via lugs-ring terminals and carries a conventional free-air thermal current of 10 A at 50 °C, with a rated insulation voltage of 690 V per IEC 60947-5-1 and 600 V per UL/CSA. The 38 mm width and 35 mm depth keep it compact on the panel face.
The rated making capacity of 110 A at 10 MOhm tells you the contacts can close onto a high-inrush load without welding, which matters when switching control transformers or contactor coils. Rated operational voltage of 690 V AC covers most 400/480 V line-to-line control circuits, and the 2000 m altitude limit is standard for low-voltage gear; above that, air density drops and clearance derating applies.
Compliant with EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, GB/T 14048.5, JIS C8201-5-1, and UL 60335-2-40 Annex JJ. IP20 finger protection per IEC 60529. Protective treatment TC per IEC 60068 for normal environment.
This part is marked obsolete by the manufacturer. If you are holding a legacy TeSys K contactor that uses this front-mount block, securing a spare before the next failure is the move; no spare, no sleep.