The Siemens 3RV2031-4JA15 is a robust circuit breaker designed for motor protection, ensuring the safe and efficient operation of electrical motors. This part falls under the SIRIUS product family, known for its reliability and versatility in industrial applications. The circuit breaker is engineered to provide Class 10 protection, with an adjustable pick-up value current of the current-dependent overload release ranging from 54 to 65 A. It also features a short-circuit release mechanism to safeguard against electrical faults.
Constructed to accommodate a three-phase AC motor, the 3RV2031-4JA15 can handle an operational short-circuit current breaking capacity (Ics) of up to 100 kA at 240 V and 30 kA at 400 V, with a maximum short-circuit current breaking capacity (Icu) of 65 kA at 400 V. This ensures that the device can cope with demanding industrial environments and high fault levels.
The circuit breaker is designed for easy installation and can be mounted in any position, making it a flexible choice for various setups. It is compatible with screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 60715, which simplifies the integration process into existing systems.
With a mechanical service life of approximately 20,000 switching cycles and an electrical endurance to match, the 3RV2031-4JA15 is built to last, reducing the need for frequent replacements and maintenance. The device also includes an integrated auxiliary switch with 1NO+1NC contacts, expanding its functionality for control and signalling purposes.
The Siemens 3RV2031-4JA15 operates effectively within a wide range of ambient temperatures, from -20 to +60 °C, making it suitable for use in diverse working conditions. Its compact design, with dimensions of 140 mm in height, 55 mm in width, and 149 mm in depth, ensures that it does not require excessive space within control cabinets or panels.
Overall, the Siemens 3RV2031-4JA15 circuit breaker is a dependable and efficient solution for motor protection, offering precise overload protection and robust short-circuit handling capabilities, which are essential for the longevity and safety of industrial motor applications.