SIEMENS 3RV2021-4BA10 Motor Protection Circuit Breaker

14A–20A | 7.5kW | S0 | SIRIUS Series

The SIEMENS 3RV2021-4BA10 is a durable and efficient motor protection circuit breaker built to handle motors up to 7.5kW. With a broader current range and a slightly larger S0 frame, it ensures safe operation in demanding industrial applications by protecting against overload, short circuit, and phase failure.

Key Features

• Adjustable current range: 14A to 20A

• Motor power capacity: up to 7.5kW (AC-3)

• S0 frame size for higher current applications

• Integrated overload, short-circuit, and phase-failure protection

• Fast tripping response with Trip Class 10

• Operating voltage: up to 690V AC

• Mechanical lifespan: up to 100,000 operations

• DIN rail and screw mounting support

• IEC/EN 60947-4-1 compliant