The 3-pole configuration with 3 NO power poles and 1 NC auxiliary contact covers the basic reversing scheme — the NC provides electrical interlocking to prevent both contactors pulling in simultaneously.
This part is classified as Obsolete by the manufacturer. No official successor order code is listed. If you are evaluating a replacement for a new design, the TeSys K family has been superseded by the TeSys Deca range; verify footprint and coil voltage compatibility before substituting.
AC-4 rating covers plugging and inching, which is harder on the contacts. Rated operational voltage of 690 V AC on the power circuit; signalling circuit isolation rated at 10 MOhm. Flame retardance to UL 94 V1 and NF F 16-101/102 means the housing meets rail and general industry fire-safety standards. Mechanical robustness tested to 10-15 Gn shock and 4 Gn vibration (contactor closed) per IEC 60068-2-27 and IEC 60068-2-6 — suitable for applications with moderate vibration like conveyor drives or pump skids. Operating altitude of 2000 m without derating covers most installations; above that, dielectric withstand and thermal dissipation need to be checked.
Integration notes
The preassembled reversing busbar saves panel wiring time but locks the mechanical interlock arrangement — verify the busbar orientation matches your enclosure layout before mounting. Coil is 230-240 V AC; confirm control transformer sizing and that the coil draw does not exceed the PLC output or relay rating driving it.