The Siemens 3RW5076-6AB14 is a SIRIUS soft starter rated for a minimum set current of 200 A and a rated voltage of 200 to 480 V. It carries ATEX, UKEX, and IECEx approvals for explosive atmospheres, plus CE, UL, and CSA marks — so it clears both IEC and North American compliance gates on the same BOM line.
Trip class and motor protection
Trip class is configurable as CLASS 10A, 10E (preset), or 20E per IEC 60947-4-2. If you have a high-inertia load like a centrifuge or a long-ramp application, switching to 20E buys the extra thermal budget without changing hardware. Minimum load is 15 % relative to the smallest settable Ie — so it won't nuisance-trip on lightly loaded motors that draw well below the starter's floor.
Mounting and environmental
Fastened by screw fixing — no DIN-rail clip on this frame size. Dimensions are 160 mm wide, 230 mm high, 282 mm deep. Clearance requirements: 100 mm upwards, 10 mm forwards, 0 mm backwards, 75 mm downwards, 5 mm at the side. That 0 mm backwards means it can sit flush against a back panel, which saves depth in a tight enclosure. Shock resistance is 15 g / 11 ms, dropping to 12 g / 11 ms with potential contact lifting — fine for most industrial floor environments, but watch it on a vibrating compressor skid.
