Siemens Sirius 3RV1021-1DA10 Motor Protection Circuit Breaker (Replaced by 3RV20

Siemens Sirius 3RV1021-1DA10 Motor Protection Circuit Breaker

The Siemens Sirius 3RV1021-1DA10 is a compact and reliable motor protection circuit breaker designed to safeguard three-phase induction motors and other loads. It offers comprehensive protection by combining thermal and magnetic trip elements, ensuring both overload and short-circuit protection.

Key Features

• Adjustable Thermal Overload Release: The device features a thermal overload release adjustable between 2.2 to 3.2 A, allowing precise setting according to motor full load amperage (FLA).
• Magnetic Short-Circuit Release: Equipped with a magnetic trip element set at 42 A, it provides rapid response to short-circuit conditions, enhancing motor safety.
• On/Off Rotary Handle: The integrated rotary handle facilitates easy manual operation, including a lockout feature and visible trip indication for enhanced safety and convenience.
• Class 10 Overload Trip Characteristics: Designed to trip within 10 seconds under overload conditions, ensuring prompt motor protection.
• High Interrupting Capacity: With a short-circuit interrupt rating of 100 kA, it effectively handles high fault currents, minimizing potential damage.
• DIN Rail Mounting: Standard 35 mm DIN rail mounting allows for straightforward installation and integration into control panels.

Technical Specifications

• Voltage Rating: Suitable for operation at 690 VAC/VDC.
• Number of Poles: Three-pole configuration for balanced three-phase protection.
• Frame Size: S0, indicating a compact design suitable for various applications.
• Temperature Rating: Operational within a temperature range of -20 to 60 degrees Celsius.
• Certifications: Complies with UL Listed, CE Certified, CCC Certified, CSA Certified, and IEC Certified standards, ensuring global applicability and safety compliance.

Applications

The 3RV1021-1DA10 is ideal for protecting and switching three-phase induction motors up to 1.1 kW at 400 VAC, as well as other loads with rated currents up to 100 A. Its robust design and comprehensive protection features make it suitable for various industrial applications requiring reliable motor protection.

Dimensions

• Height: 97 mm
• Width: 45 mm
• Depth: 96 mm

These compact dimensions facilitate easy integration into control panels where space is a premium.

Conclusion

The Siemens Sirius 3RV1021-1DA10 motor protection circuit breaker offers a reliable and efficient solution for motor protection needs. Its combination of thermal and magnetic trip elements, adjustable settings, and high interrupting capacity ensures comprehensive protection for motors and connected equipment. The user-friendly design, including the on/off rotary handle and DIN rail mounting, simplifies installation and operation, making it a valuable component in industrial motor control applications.