What 32 A minimum and CLASS 10A mean for motor starting
The 3RW5226-1AC15: The 32 A minimum setting on this SIRIUS soft starter sets the floor for motor full-load current — it won't reliably start a motor drawing less than 32 A, so match it to a motor nameplate above that threshold. Default trip class is CLASS 10A per IEC 60947-4-2, meaning the starter lets the motor draw starting current for up to 10 seconds before tripping — suitable for standard-load starts like pumps and fans. CLASS 10E and 20E are selectable for heavier inertia loads.
Fieldbus and communications — what's on board
Built-in PROFIBUS, Modbus RTU, Modbus TCP, EtherNet/IP, and PROFINET standard — no separate gateway module needed for common plant networks. PROFIenergy support is available when paired with the PROFINET standard communication module.
Mounting and clearance — panel fit
Screw-fixing mount with a 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 — plan the enclosure layout around these to avoid thermal recirculation.
Operating temperature and derating
Rated for -25 to +60 °C during operation, but derating applies above 40 °C — check the derating curve in the product documentation before sizing for a hot enclosure.