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- - - SIEMENS 3RB3016-1NB0 Overload Relay
      
      Product Overview
      
      SIEMENS 3RB3016-1NB0 is a SIRIUS 3RB3 Electronic Overload Relay designed for motor protection applications. It provides reliable protection against motor overload, phase failure, and abnormal operating conditions. The relay is designed for S00 size contactor mounting and supports manual/automatic reset functions.
      
      Specifications
      - Brand: SIEMENS
      - Series: SIRIUS 3RB3
      - Model: 3RB3016-1NB0
      - Product Type: Electronic Overload Relay
      - Application: Motor Protection
      - Protection Class: Class 10E
      - Current Setting Range: 0.32…1.25 A
      - Size: S00
      - Mounting Type: Contactor mounting
      - Main Circuit Connection: Screw terminals
      - Auxiliary Circuit Connection: Screw terminals
      - Reset Mode: Manual / Automatic Reset
      - Number of Main Poles: 3 poles
      - Auxiliary Contacts:
        
        1 NO contact
        
        1 NC contact
      - Rated Insulation Voltage: 690 V
      - Protection Rating: IP20
      - Operating Temperature: -25…+60 °C
      Advantages & Features
      - Electronic overload protection with high accuracy
      - Protects motors against overload and phase loss
      - Class 10E trip characteristic for motor applications
      - Compact S00 design saves cabinet space
      - Direct mounting onto Siemens SIRIUS contactors
      - Supports manual and automatic reset operation
      - Low power loss and high reliability
      - Suitable for continuous industrial operation
      Applications
      - Motor control centers (MCC)
      - Industrial automation equipment
      - Pumps and fans
      - Conveyor systems
      - Machine tools
      - Production line equipment
      - HVAC motor systems
      - Factory control cabinets
      Precautions
      - Confirm motor rated current is within 0.32–1.25 A adjustment range
      - Ensure compatibility with the matching S00 contactor
      - Check wiring of main and auxiliary circuits
      - Set the correct overload current before operation
      - Disconnect power before installation or maintenance
      - Avoid exceeding rated voltage and current limits