The Siemens 3RA2316-8XB30-2AB0 is a SIRIUS reversing contactor assembly in size S00, pre-configured with two 3RT2016-2AB02 contactors and mechanical interlock for motor reversing applications.
Occupies 90 mm width, 84 mm height, 83 mm depth on the rail. Clearance requirements: 6 mm upwards, 6 mm downwards, 6 mm to the side, 6 mm forward, 0 mm backward — the zero backward clearance means it can sit flush against a panel backplate. Operating temperature range -25 to +60 °C, storage -55 to +80 °C. Vibration resistance at AC and DC: 10.5 g / 5 ms and 6.6 g / 10 ms — adequate for machine-mounted panels near rotating equipment.
Duty ratings and mechanical endurance
AC-4 switching at 400 V is also rated 4 kW — this covers plugging and inching duty where the contactor makes and breaks stalled-rotor current. The mechanical life of the supplied contactor type is typically 10 million operating cycles.
Compliance and sourcing posture
The two supplied contactors (3RT2016-2AB02) are individually orderable as spares.