NEW ARRIVAL: Siemens SIRIUS 3RV2021-1JA10 Motor Starter Protector Now Available
Model Description
We are pleased to announce the immediate availability of the Siemens SIRIUS 3RV2021-1JA10 motor starter protector, a robust 3-pole circuit breaker engineered for reliable motor protection up to 4kW at 400V AC. This S0-frame device features an adjustable Class 10 overload release range of 7–10A with a fixed magnetic short-circuit trip at 130A, providing comprehensive protection against thermal overload and fault currents. The unit mounts on standard 35mm DIN rail and utilises screw terminals for secure connection of 0.5–4mm² conductors. Measuring 45×96.9×97mm and weighing 355.7g, the 3RV2021-1JA10 integrates seamlessly into control panels for conveyor systems, pumps, fans, compressors and machine tools where space optimisation and reliable motor protection are critical .
Key Features
The 3RV2021-1JA10 delivers 690V AC rated operational voltage with multiple breaking capacities (4kA, 6kA, 10kA, 42kA, 100kA) selectable via upstream fuses, ensuring compliance with diverse installation requirements. The device provides phase-loss sensitivity, IP20 finger-safe terminals and operates reliably across –20°C to +60°C ambient range. Mechanical life exceeds 10 million cycles, while the non-repairable design guarantees maintenance-free service exceeding 20 years. CE, cULus, CCC and RoHS approvals validate global deployment, and the integrated rotary ON/OFF handle with clear position indication enhances operator safety. The protector’s low power loss (7W) and compact S0 footprint enable dense panel layouts without thermal derating .
Related Models in the 3RV20 Family
The SIRIUS 3RV20 series offers scalable protection for varied motor ratings. 3RV2021-0FA10 (1–1.6A), 3RV2021-0HA10 (2.2–3.2A) and 3RV2021-0KA10 (5.5–8A) provide lower current options within the same S0 frame, while 3RV2021-1KA10 (9–12.5A) extends capacity for larger motors. For spring-clamp connections, 3RV2021-1JA15 offers identical ratings with tool-free wiring. Higher-power applications can select 3RV2031 series (S2 frame, up to 32A) or 3RV2041 series (S3 frame, up to 100A). Complementary accessories—including 3RV2901 auxiliary contacts (1NO/1NC) and 3RV2902 undervoltage releases—snap onto the same profile, enabling modular motor control schemes without mechanical redesign .
Our Competitive Advantages
As a dedicated Industrial Automation trader, we provide exceptional procurement flexibility and customer-centric service solutions. Our adaptable payment structures accommodate wire transfer arrangements and customized credit facilities for approved partners, removing financial barriers to urgent maintenance requirements. We maintain significant strategic inventory in regional distribution hubs, enabling delivery within 5-7 business days to most industrial centers worldwide. Our extensive sourcing network spans premium European and Asian sensor distribution channels, ensuring authentic Telemecanique component traceability without geographic restrictions. This multi-channel approach guarantees availability during global supply chain disruptions. Our application engineers provide sensor selection consultation, detection distance calculation, and integration support, assisting with control logic configuration and wiring optimization. Through direct manufacturer partnerships and streamlined logistics, we deliver genuine Telemecanique inductive sensors with accelerated fulfillment cycles and competitive pricing structures.
For immediate quotations or technical consultation, please contact our dedicated sales team.
About Us
We are a focused industrial-automation components trader committed to delivering authentic Siemens SIRIUS protection solutions with speed, flexibility and technical expertise.