Siemens 3RW30 Soft Starter
Siemens 3RW30 series features resistor-based ramp-up control for three-phase motors, classified as a rheostat-type motor starter under HTS 8533.40.80.40. Designed for conveyor belts and pumps with bypass contactor integration for efficiency. Provides thermal overload protection via resistive voltage reduction.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If thyristor-based power controllers
Inverter-duty drives with semiconductor control classify under static converters in 8504.
If only capacitor-based starters
Capacitors for motor starting fall under fixed variable capacitors in 8532, not resistors.
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Import Tips & Compliance
• Submit Siemens conformance certificates showing resistor motor starting mechanism
• Label with IP rating and enclosure type (NEMA 1/4X) for hazardous location imports
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