What it is and where it fits
The Siemens 3RT2325-2BM40-ZX95 is a SIRIUS contactor in size S0, rated for DC coil voltage, with spring-type terminals on the magnet coil and an auxiliary switch built in. It fastens with screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715, so it drops straight into a standard panel enclosure — no adapter plate needed. The contactor occupies 60 mm width and 107 mm depth, with 10 mm clearance upwards, forwards, and downwards, and 6 mm at the side — that's a compact footprint for a size S0 frame.
Ratings that matter for the buyer
The coil is DC-operated; the arcing time sits at 10 ms, and the operating time at DC is 15 to 18 ms — that means it switches fast enough for most motor-start and isolation duties. Main contact ratings span 24 VDC at 10 A up to 690 V at 1 A, with intermediate points at 48 V (2 A), 60 V (6 A), 110 V (1 A), 125 V (0.9 A), 220 V (0.3 A), 230 V (10 A), 400 V (3 A), 500 V (2 A), and 600 V (0.1 A). The 230 V at 10 A rating is the highest current on the list — that's the one to size against if you're switching a resistive load at that voltage. Mechanical life is rated at 10 000 000 operations typical, which is standard for a SIRIUS contactor in this frame size — it'll outlast most panel refreshes.
Termination and wiring
Main contacts accept solid conductors 2x (0.5 to 2.5 mm²) or stranded 1 to 10 mm², and the coil uses spring-type terminals — no screwdriver needed for the coil connection, which speeds up panel wiring.