SIEMENS 3RV2021-4DA10 Motor Protection Circuit Breaker

18A–19A | 11kW | S0 | SIRIUS Series

The SIEMENS 3RV2021-4DA10 is a high-capacity motor protection circuit breaker, designed for reliable protection of motors up to 11kW. With precise overload and short-circuit protection, and a robust S0 frame, it's ideal for heavy-duty industrial motor control applications.

Key Features

• Adjustable current range: 18A to 19A

• Supports motor loads up to 11kW (AC-3)

• S0 frame size for mid-to-high power applications

• Built-in protection against overload, short circuit, and phase failure

• Fast-acting Trip Class 10

• Rated operating voltage: up to 690V AC

• High mechanical durability: up to 100,000 operations

• Easy installation via DIN rail or screw mounting