The SIEMENS 3RU2146-4LB0 thermal overload relay is built to protect motors operating within the 70 to 90 A current range. Designed for heavy-duty industrial applications, it offers dependable protection against motor overload and phase failure. This relay integrates directly with Siemens 3RT contactors, ensuring a compact and efficient motor starter setup.

    Key Features:

• Adjustable current range: 70 A to 90 A

• Integrated phase failure protection

• Trip Class 10 for fast and accurate overload detection

• Selectable manual and automatic reset options

• Ambient temperature compensation for consistent protection

• Test and reset buttons for easy service and troubleshooting

• Direct mounting on Siemens 3RT contactors

• DIN rail mountable design

• Conforms to IEC/EN 60947-4-1 international standards