Reversing starter in an IP65 can — what you're actually getting
The Siemens 3RK1304-5KS40-3AA0 is a SIMATIC-brand reversing motor starter packed into an IP65 enclosure — screw-fixed, not DIN-rail, so plan for panel or machine-mount with four bolts. Trip Class 10 gives you a 10-second thermal overload window at locked-rotor current; fine for standard induction motors driving pumps or conveyors, but if you're starting high-inertia loads (centrifuges, large fans) you'll want to check the acceleration time against that curve. Digital I/O is lean — 4 inputs via M12 socket, no onboard digital outputs — so you'll need the PROFINET or PROFIBUS DP link to carry status back to the controller. The 2-byte input and 2-byte output process image is tight; plan your data mapping accordingly. Supply voltage is 24 V DC nominal, with a tolerance window of 20.4 to 28.8 V — the same range as standard 24 V control power supplies, so no special rail required.
Integration notes — fieldbus and mounting
Mounting is screw-fixed (no DIN-rail clip), so factor in four holes and a screwdriver. The enclosure measures 230 mm high, 110 mm wide, 150 mm deep — about the size of a small junction box. IP65 means it's sealed against dust and low-pressure water jets; fine for washdown zones or outdoor cabinets, but not submersible. Vibration resistance is 2g continuous, shock 15g for 11 ms — tough enough for machine-mounted duty on a press or conveyor. Fieldbus options: PROFINET and PROFIBUS DP are both on board — no option card needed. The main energy infeed uses a socket per ISO 23570, so the mating connector is standardized.