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Siemens 3RV2021-4BA10 SIRIUS motor starter designed for manual motor protection and switching, combining overload and short-circuit protection with adjustable current range for reliable operation in industrial motor control applications. Manufacturer: Siemens Product type: Motor starter / motor protection circuit breaker Model: 3RV2021-4BA10 Series: SIRIUS 3RV20 Country of manufacture: Turkey Rated operational voltage: up to 600 VAC Rated insulation voltage (Ui): 690 V Rated current adjustment range: 13–20 A Trip class: Class 10 A Number of poles: 3-pole Breaking capacity: High short-circuit breaking capacity (industrial standard, up to approx. 50–100 kA depending on voltage) Overload protection: Thermal overload protection with adjustable setting Short-circuit protection: Magnetic instantaneous trip Control method: Manual ON/OFF rotary operator Auxiliary compatibility: Accepts auxiliary contacts and accessories (e.g. 3RV2901 series) Mounting type: DIN rail mounting or panel mounting Connection type: Screw terminals Terminal capacity: Suitable for industrial conductors up to approx. 16 mm² Operating frequency: 50/60 Hz Motor protection: Designed for three-phase motors Isolation function: Yes (main isolator capability) Indicator: Mechanical position indicator ON/OFF/TRIP Protection rating: IP20 Operating temperature range: -25°C to +60°C Storage temperature range: -40°C to +80°C Mechanical life: approx. 100,000 operations Electrical life: approx. 50,000 operations (load dependent) Housing material: Industrial thermoplastic Width: approx. 45 mm Height: approx. 97 mm Depth: approx. 90 mm Weight: approx. 0.4–0.6 kg Standards compliance: IEC/EN 60947-2, IEC/EN 60947-4-1, CE, UL, CSA Application: Motor protection, industrial machinery, control panels, pumps, compressors, conveyor systems Additional features: Adjustable current setting dial, integrated disconnect function, compatible with SIRIUS modular accessory system Please review pictures carefully and let us know if you have any questions!
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