3RV1042-4JA10

Within the SIRIUS series, the Siemens 3RV1042-4JA10 serves as a robust circuit breaker that fits the standard size S3 classification. This unit is configured to manage a current rating varying between 45 and 63 amperes. It is engineered to provide exceptional motor protection capabilities, managing heavy-duty loads with protection thresholds up to 100 kA.

For short-circuit situations, the breaker features a release rating at 819 A, emphasizing its ability to safeguard electrical circuits effectively. The device utilizes an A-release type mechanism, contributing to its responsive performance under fault conditions. The rated operational voltage supports up to 690 V AC, ensuring compatibility with high-voltage systems.

It's suitable for applications operating at either 50 or 60 Hz frequency, allowing flexibility in installations. It meets a degree of protection rated at IP20, making it appropriate for environments where exposure to solid objects is minimal. Furthermore, the circuit breaker is compliant with Class 10 for trip classes, providing reliable thermal overload protection.

The terminal type is screw-based, allowing secure connections. Additional specifications include a rated insulation voltage of 800 V AC and impressive short-circuit breaking capacity. It can withstand breaking capacities of 50 kA at 400 V, and its making capacity stands at 105 kA, showcasing its robustness during fault conditions. Lastly, this circuit breaker can be seamlessly mounted onto DIN rails, optimizing space in control panels. The rated impulse withstand voltage is documented at 6 kV, enabling the device to endure transient over-voltage conditions that could occur within systems.