Siemens 3RV2021-4CA10 Manual Motor Starter Protector 17-22A

The Siemens 3RV2021-4CA10 is a manual motor starter protector from the SIRIUS 3RV2 series, designed to provide reliable overload and short-circuit protection for three-phase motors. This compact circuit breaker combines motor protection, isolation, and switching functions in a single device, making it ideal for industrial automation and motor control applications.

Key Features:

• Adjustable current setting range: 17-22 Amperes
• Manual operation with trip-free mechanism
• Thermal overload and magnetic short-circuit protection
• Screw terminal connection type
• Compact design saves panel space
• Trip class 10A for standard motor protection
• Integrated auxiliary contacts compatible with additional modules
• UL/CSA certified for North American applications

This motor starter protector is suitable for protecting motors up to 11 kW at 400V. The device features clear ON/OFF position indication and can be padlocked in the OFF position for lockout/tagout safety procedures. The 3RV2021-4CA10 is DIN rail mountable and compatible with the full range of Siemens SIRIUS accessories including auxiliary switches, alarm contacts, and communication modules.