Reversing contactor assembly for motor direction control
The Siemens SIRIUS 3RA2316-8XB34-1CP0 is a reversing contactor assembly — two contactors interlocked mechanically and electrically to swap two phases on a three-phase motor, giving forward/reverse control from a single package. At 480 V the continuous current rating is 7.6 A; at 600 V it carries 9 A. The size S00 frame keeps the footprint compact — 90 mm wide, 68 mm tall, 130 mm deep — fitting standard panel layouts without crowding adjacent devices.
Mounting and wiring flexibility for panel integration
Clearance distances: 6 mm upward, downward, and sideways; 0 mm backward. This means the back of the device can sit flush against the panel backplate, saving depth. The auxiliary contact block adds 4 instantaneous contacts per direction of rotation.
Duty cycle and environmental limits
Maximum switching frequency in AC-3 and AC-3e duty is 750 operations per hour — sufficient for most conveyor, pump, and fan reversing applications without derating. Mechanical life is 10 million operations typical, meaning the contactor assembly outlasts the motor it controls in normal cycling service. Shock rated at 10.5g for 5 ms and 6.6g for 10 ms on both AC and DC axes.