The SIEMENS 3RB2066-1MC2 thermal overload relay is designed for protecting large industrial motors with a current range of 160 to 630 A. It delivers high-performance overload and phase failure protection, ensuring maximum motor safety and reliability in heavy-duty industrial applications. This relay integrates seamlessly with Siemens 3RB20 series contactors and motor starters, supporting robust motor control solutions.

    Key Features:

• Adjustable current range: 160 A to 630 A

• Advanced phase failure detection for comprehensive motor protection

• Trip Class 10 for fast and accurate overload response

• Manual and automatic reset selectable

• Ambient temperature compensation for consistent performance under varying conditions

• Test and reset buttons for easy diagnostics and maintenance

• Rugged industrial design for heavy-duty applications

• Compatible with Siemens 3RB20 contactors and motor starters

• Compliance: IEC/EN 60947-4-1 and other international standards