Four poles, neutral on the left, rear-connected with a 115 mm pitch without spreader. Breaking capacity code HA means it is built for high-fault installations; the rated short-time withstand is 66 kA for 1 s (36 kA for 3 s), and the making capacity hits 143 kA peak at 50/60 Hz.
AC-23A at 3200 A is the rating that governs real motor switching — this is not a resistive-load (AC-1) number. The electrical durability is specified at 5000 cycles at 440 V and 2500 cycles at 690 V without maintenance, so plan for periodic contact inspection in high-cycle applications. Mechanical durability is 20000 cycles with maintenance, 10000 without. IP40 enclosure protection keeps tools and fingers out but is not washdown-rated.