Active production — what that means for procurement
The 3RW5225-3AC14 carries a current lifecycle stage, meaning Siemens still manufactures it as a standard catalog item. No last-time-buy window or phase-out notice is in effect.
Trip class and motor starting duty
The unit also offers selectable 10E and 20E classes for higher-inertia loads like centrifuges or crushers that need a longer acceleration ramp. The minimum settable current is 25.5 A, so motors with a full-load current below that value require a smaller frame size. The rated voltage range of 200–480 V covers the common low-voltage supplies worldwide without a hardware tap change.
Onboard communications — no extra module needed
PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET standard are all built into the base unit. This eliminates the cost and panel space of a separate communication module for most industrial networks. PROFIenergy is supported when used with the PROFINET standard communication module, enabling energy management functions during idle periods.
Soft Torque and Pump Ramp Down — mechanical stress reduction
Soft Torque reduces the initial current spike and mechanical shock on start, which extends the life of belts, gears, and couplings. Pump Ramp Down provides a controlled deceleration on stop, preventing water hammer in pumping systems.
Mounting and panel integration
Mounting is by screw fixing, not DIN-rail clip. The dimensions are 306 mm height, 185 mm width, and 203 mm depth. Clearance requirements: 100 mm above, 75 mm below, 10 mm forward, 5 mm at the sides, and 0 mm backward. The mounting position allows ±10° rotation and can be tilted forward or backward on a vertical surface.
UL, CSA, and CE markings are all present, so the unit is accepted in North American and European installations without additional certification work. Shock resistance is rated at 15 g / 11 ms, with potential contact lifting above 12 g / 11 ms. The service factor is 1.0.