The 72-125 V DC coil means it pulls in reliably on a 125 V DC control bus but holds in down to 72 V — useful on long cable runs where voltage drop eats into the pickup margin. The inrush current peak of 1.1 A tells the DC supply sizing: that's the instantaneous draw when the coil energizes, not the holding current.
The spring-type terminals on the coil accept 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), or 2x 4 mm² solid wire; main contacts take 2x (0.5-4 mm²). That's enough cross-section for the motor leads on a size S00 contactor. Depth is 73 mm, width 45 mm, height 70 mm — it fits a standard 45 mm-wide slot on the rail. Clearance around the unit: 10 mm above and below, 6 mm to the side. No need to recut the panel if you're swapping from another S00 frame.
The DC coil type is the main thing to get right here. With a rated value of 72-125 V DC, this contactor is built for a 125 V DC control bus — common in mining and heavy industrial sites where the control voltage stays up even when the AC dips. The arcing time of 10-15 ms and the DC dropout time of 25-45 ms matter for interlocking logic: the auxiliary contacts change state within that window. That covers a hot panel in summer or a cold startup in a northern mill.