That means you can pull the old unit off the rail, land the wires on the same terminals with a screwdriver, and be back in business — no crimping ferrules needed unless your site standard calls for them. The terminal area itself is IP00 — that's typical for contactors; the enclosure provides the real ingress protection.
Coil and contact ratings — the numbers that decide fit
Coil is a 24 VDC pickup, pulling 5.4 W during both closing and holding. Holding power equals inrush. On the main contacts, the AC-3 motor-switching rating at 400 V is 7.5 kW — that is the number most buyers care about for a standard three-phase induction motor. The AC-4 reversing or plugging rating at 400 V is 15.5 A, lower than the AC-3 rating because of the higher switching stress. For resistive loads (AC-1), the maximum operational current is 10 A at 400 V. The contactor also carries ratings at other voltages: at 230 V it switches 6 A, at 500 V it switches 10 kW, and at 690 V it switches 11 kW. These are for the main circuit under the respective duty classes — match the voltage on your line. Auxiliary contact ratings are given for the DC switching side: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. That is important if you are using the aux contacts to switch a PLC input or a smaller relay coil — the DC rating drops fast as voltage rises.
Installation constraints and wiring details
The S0 frame measures 45 mm wide by 85 mm tall by 150 mm deep. Main circuit terminals accept solid or stranded wire: 2x (1... 2.5 mm²), 2x (2.5... 6 mm²), or a single up to 10 mm². Auxiliary circuit terminals take 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), or a single up to 4 mm². AWG equivalents are also listed: main terminals take 2x (16... 12), 2x (14... 10), or 1x 8 AWG; aux terminals take 2x (20... 16), 2x (18... 14), or 1x 12 AWG.
Short-circuit protection coordination
These are the values to hand to the panel builder when sizing the branch circuit protection.
Mechanical life and compliance
The typical mechanical endurance is 10 million operations — that is the unloaded mechanical life. Electrical life will be lower and depends on the switching current and voltage; the 10 million figure is a reference for how many times the armature can cycle before mechanical wear becomes a concern. The product carries a substance prohibition date of 01.07.2006, which aligns with the original EU RoHS directive (RoHS 1). This means the contactor is RoHS-compliant for the six original restricted substances.