The Siemens 3RV1021-1HA15 is a robust circuit breaker designed for motor protection, ensuring efficient operation and safety in a variety of industrial applications. This three-pole device is engineered to handle a rated operational voltage of up to 690 V ac, making it suitable for a wide range of electrical setups. With a compact frame size of S0, it occupies minimal space while delivering reliable performance.
The circuit breaker features a Class 10 trip characteristic, with an adjustable response current range of 5.5 to 8 A, providing precise protection for motors against overload conditions. The short-circuit release is rated at 104 A, offering substantial protection in the event of fault conditions. The unit's screw connection terminals facilitate secure and straightforward installation, and it is designed to be mounted onto a 35 mm standard mounting rail according to DIN EN 50022, allowing for versatile integration into electrical distribution systems.
With a mechanical service life of approximately 100,000 switching cycles, the Siemens 3RV1021-1HA15 is built to last, ensuring long-term reliability and reduced maintenance requirements. The device also includes a transverse auxiliary switch with 1 normally open and 1 normally closed contact, expanding its functionality for control and signalling purposes.
This circuit breaker is designed to operate within a wide ambient temperature range, making it suitable for challenging industrial environments. Its finger-safe design and IP20 protection rating on the front provide additional safety during operation and handling.
Overall, the Siemens 3RV1021-1HA15 circuit breaker is a dependable choice for motor protection, offering a combination of performance, durability, and installation flexibility, making it a valuable component in industrial electrical protection systems.