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3RV2021-4CA10 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Siemens 3RV2021-4CA10 is a SIRIUS 3RV2 series motor circuit-breaker (size S0, Class 10) designed for protection of three-phase AC motors via adjustable thermal overload (16…22 A) and instantaneous short-circuit release (286 A). It integrates into control panels via DIN-rail mounting and interfaces with contactors sized S00 or S0. Its principal role is to guard motors against overload and short-circuit faults in industrial machinery and motor control centers. Part number 3RV2021-4CA10 is featured twice.
Best Suited For
- Motor protection in control panels
- Panel layout with limited space (size S0 footprint)
- Applications requiring adjustable overload protection (16-22 A range)
- Systems needing instantaneous short-circuit tripping (286 A)
- Integration with SIRIUS contactor assemblies
Technical Specifications
I/O & Electrical
Communication & Power
Physical & Environmental
Certifications
Approvals include UL, CCC, EU and UK declarations of conformity, KC, EAC, ATEX, IECEx, maritime (ABS, BV, DNV, LR, PRS, RINA), EU EPD Type II/III, Siemens EcoTech Profile.