It provides 2 normally open (NO) instantaneous contacts and no normally closed (NC) contacts, rated at 10 A in AC-12 duty (resistive control loads at 24 V).
For inductive loads, the switching capacity drops: at 230 V it's rated 6 A, at 400 V it's 3 A, and at 690 V it's 1 A. The 2 NO contact configuration (with 0 NC) means this unit is a straight make-only block; if your circuit needs a break contact, you'd need a different variant or an add-on block. The coil closing and holding power is 3.2 W DC, a low draw that keeps the control transformer sizing tight.
This auxiliary contactor is sized for the S00 frame, which means it occupies a 45 mm wide DIN-rail footprint with a depth of 72 mm and height of 57.5 mm. The screw and snap-on mounting lets you clip it directly onto the DIN rail without tools, or screw-fix it for vibration-prone locations. Side clearance of 0 mm means you can gang it next to other devices without spacing.
The screw terminals accept solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². This covers most control wiring from signal-level to power-limited circuits.