The 6 NO contact set gives you six independent signal paths — enough to handle feedback to a PLC, interlocks, and indicator lamps from one block without stacking additional units.
The contact ratings tell you what it can switch at each voltage level: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. The 121 mm depth and 45 mm width mean it fits a standard 45 mm-wide DIN-rail slot, leaving room alongside for the power contactor and overload relay. The 70 mm height keeps it below typical enclosure gland-plate clearance. That helps when you're squeezing it into a tight corner of a panel and can't keep everything perfectly plumb.
Compliance posture
The part carries a substance prohibitance date of 10/01/2009, aligning with RoHS and REACH substance restrictions. It's a standard industrial component for EU and UK markets.