What this assembly contains and where it fits
The 3RA2346-8XB30-1AG2 is a Siemens SIRIUS reversing contactor assembly — a pre-wired pair of contactors (two 3RT2046-1AG20 units) in a single enclosure that handles forward/reverse motor control without external interlocks.
Dimensions are 152 mm deep by 150 mm wide by 160 mm high — a compact footprint for a reversing pair, leaving room alongside for overload relays or busbars.
Ratings that matter for the motor load
At 400 V AC-3/AC-3e duty, the assembly switches 45 kW at up to 850 operations per hour — that cycle rate suits frequent reversing applications like conveyors, hoists, or positioning tables. Rated for shock loads up to 10.6 g / 5 ms and 6.3 g / 10 ms, so it holds up on mobile equipment or near heavy-impact machinery.
