3RV2021-1CA20

Overview: Siemens 3RV2021-1CA20 Motor Protection Circuit Breaker

The Siemens 3RV2021-1CA20 is a motor protection circuit breaker from the SIRIUS series, designed for size S0 motor starters. It features thermal-magnetic protection with an adjustable overload release current ranging from 1.8 to 2.5 A and a short-circuit instantaneous release of 33 A. This breaker operates within an AC voltage range of 20 to 690 V and supports frequencies of 50 and 60 Hz. It includes spring-type terminals for secure connections and offers DIN rail, snap-on, and threaded screw mounting options. The device is designed for reliable motor protection in industrial settings.

Key Features

• Adjustable Overload Release: 1.8 to 2.5 A for precise motor overload protection.
• Instantaneous Trip: 33 A for short-circuit protection.
• Voltage Range: 20 to 690 V AC to accommodate various industrial power supplies.
• Mounting Options: DIN rail, snap-on, or threaded screw mounting.
• Terminals: Spring-type terminals for secure and fast wiring.
• Operating Frequency: Compatible with 50/60 Hz power systems.
• Mechanical Life: Up to 100,000 switching cycles for durability.
• Operating Temperature: -20 to +60 °C for versatile environmental performance.
• Protection Class: IP20 enclosure rating.

Technical Specs

Applications / Use Case

Ideal for industrial motor protection, the Siemens 3RV2021-1CA20 ensures motor safety through overload and short-circuit protection, suitable for a wide range of industrial motor control applications.