The 3RA2346-8XE30-1NB3: It ships with two S3-size contactors: one 3RT2046-1NB30-0CC0 and one 3RT2046-1NB30, already mounted on a common baseplate with the reversing interlock in place.
Mounting and panel fit — DIN rail or screw-fixed
Mounts on 35 mm DIN rail via the snap-on foot, or can be screw-fixed directly to a backplate — the fastening method supports both options. Clearance distances: 10 mm upwards, forwards, downwards, and to the side; 0 mm backwards — the back of the assembly can sit flush against the panel.
Duty ratings and thermal limits for motor switching
Rated for 850 switching operations per hour maximum in AC-3 and AC-3e duty — this is the mechanical limit for the reversing interlock, not a thermal derating.