That 15 1/h figure is the mechanical limit for the contact system, not a thermal limit — stay under it on frequent reversing or jogging duty. That's the difference between a motor burning up on single-phasing and a controlled shutdown.
Footprint & panel fit
Width is 45 mm, depth 97 mm, height 97 mm. That's a single 45 mm module on the DIN rail, so it takes up one slot in a standard enclosure layout. That 50 mm vertical gap is the one to watch — stack these breakers tight and you'll cook the bimetal trip.
Environment & connections
If your panel sits next to a furnace or in a desert switchroom, the upper end is the limit; above 60 °C ambient you need to derate or move the breaker outside the hot zone. Main circuit terminals are M4 screw-type, accepting 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²). That covers most motor feed wiring up to about 4 mm² per phase. The auxiliary contact ratings: 1 A at 24 V, 0.5 A at 120/125/230 V, but only 0.15 A at 60 V — that 60 V figure is the weak point if you're switching a 60 VDC control circuit.