Reversing contactor assembly for motor direction control
The Siemens 3RA2315-8XB30-2BB4-Z W96 is a reversing contactor assembly rated AC-3e/AC-3 at 7 A, switching 3 kW at 400 V three-phase. An integrated electrical and mechanical interlock prevents both contactors from closing simultaneously — essential for reversing a motor without phase-to-phase shorts. This assembly ships in multi-unit packaging, 12 pieces per pack, which suits panel builders staging multiple reversing starters on a single line. The AC-3e rating covers the higher switching frequency of modern motor starters; AC-3 covers conventional reversing duty.
Coil voltage and control circuit fit
The coil is rated 24 V DC. On a typical 24 VDC control bus, the pull-in holds reliably; verify the power supply can handle the inrush of multiple contactors staged in the same panel. The spring-loaded terminal accepts 0.2–2.5 mm² conductors — strip to 8 mm for a secure connection under the cage.