The Siemens 3RV2021-1JA20 is a robust motor protection circuit breaker designed to safeguard motors in industrial applications. This circuit breaker, size S0, is engineered for motor protection and is equipped with a thermal-magnetic release mechanism to ensure reliable operation. It has a current rating of 10 A and can handle voltages up to 690 V ac, making it suitable for a wide range of motor protection tasks.
The device features a spring-loaded connection system for secure and efficient installation, and it can be mounted using either screw or snap-on methods onto a standard 35 mm DIN rail, providing flexibility in setup. The circuit breaker's compact dimensions, 45 x 96.8 x 119 mm, allow for efficient use of space inside control cabinets.
With a high short-circuit breaking capacity of 100 kA at AC and 10 kA at DC, the 3RV2021-1JA20 ensures reliable protection against short-circuit conditions, while the adjustable trip settings enable precise protection for motors according to their specific requirements. The unit's knob control offers straightforward manual operation, and its design includes phase disturbance recognition for additional motor safety.
This circuit breaker is a critical component for industrial automation systems, offering dependable protection to extend the lifespan of motors and reduce downtime due to electrical faults. Its durable construction and compliance with international standards make it a trusted choice for motor circuit protection in a variety of industrial settings.