It is rated for AC-1 utilisation category at 40 A up to 415 V, with a 230 V coil. This makes it suited for switching resistive loads in control panels where the contactor's main job is to close and open power circuits under normal load conditions, not motor inrush.
The AC-1 rating is 40 A at ≤415 V for resistive loads. For motor loads (AC-3), this contactor is not rated. The 4-pole configuration with 2NO+2NC gives flexibility for switching multiple circuits or implementing interlocking. That covers the general rules, contactor-specific performance, and control-circuit device requirements.
Because there is no official replacement part number, a cross-reference to a current Easy TeSys or TeSys Deca contactor would need to be validated against the original application's coil voltage (230 V), pole count (4P), contact configuration (2NO+2NC), and AC-1 current rating (40 A). That is a form-fit-function check the buyer must run against their own panel layout and load specs.
The depth of 80 mm means it will clear most 100 mm deep enclosures, but check your panel's internal clearance if you are retrofitting into a shallow box.