The SIEMENS 3RV2021-4DA10 is a heavy-duty motor protection circuit breaker designed for motors with current ratings between 18 A and 25 A. It combines thermal and magnetic trip mechanisms to provide reliable protection against overloads, short circuits, and phase failures in demanding industrial environments.
Key Features:
Adjustable current range from 18 A to 25 A
Integrated thermal overload and magnetic short-circuit protection
Trip Class 10 for general motor applications
Compact DIN rail mountable design
Manual ON/OFF control with status indicator
Supports auxiliary contact modules for extended control or monitoring
Complies with IEC/EN 60947-4-1 and 60947-2 standards