Reversing contactor assembly — S0 frame, 11 kW at 400 V
The Siemens 3RA2326-8XB30-2AL2 is a SIRIUS reversing contactor assembly built around two 3RT2026-2AL20 contactors on a common mounting plate, pre-wired for mechanical and electrical interlocking. The S0 frame size keeps the assembly compact at 90 mm wide by 114 mm tall by 97 mm deep, fitting standard 35 mm DIN rail with screw or snap-on fastening (cites:,).
Ratings that govern the fit
No screw torque to verify; the spring cage holds the conductor (cites:,). Two instantaneous auxiliary contacts are built in — enough for a seal-in and a status feedback to the PLC without adding a side-mount block (cites:).
Mounting and panel integration
The assembly mounts on 35 mm standard DIN rail with either screws or the integrated snap-on latch. Clearance distances are specified: 6 mm upwards, forwards, downwards, and to the side, with 0 mm backwards. These are the minimum gaps to adjacent metalwork or enclosure walls for ventilation and arc containment (cites:,).
Environmental limits and mechanical endurance
Shock resistance is rated 13.5 g / 5 ms and 8.3 g / 10 ms under AC excitation, and 15 g / 5 ms and 10 g / 10 ms under DC — relevant for installations on vibrating machinery or in mobile equipment (cites:,). The contactor mechanical life is rated 10 million operations typical — a high-cycle benchmark for reversing starters in conveyor, hoist, or door applications where direction changes are frequent (cites:).
Sourcing and lifecycle — current production, quoted to order
No stock-holding claim — each order is quoted to the requested volume (cites:).