At 690 V the SCCR drops to 10 kA, still enough for most 690 V motor circuits in heavy industrial panels.
At 45 mm wide, it takes one standard 45 mm slot on the rail — same footprint as a SIRIUS contactor of the same frame, so you can gang them without extra spacing. Depth is 97 mm, which clears most 120 mm deep enclosures. That means you can pack it tight against a backpanel or another device front-to-back, but need breathing room top and bottom for the arc chute and wiring.
Terminals and wiring
Main circuit uses spring-loaded terminals — no screwdriver torque to check, no loosening from vibration. That's fine for motor leads up to about 4 mm² (roughly 12 AWG) and daisy-chaining a second conductor for a control transformer or auxiliary circuit.