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SIEMENS 3RU2126-4FB0 Overload Relay

3RU2126-4FB0
3RU2126-4FB0

SIEMENS 3RU2126-4FB0 Overload Relay

SIEMENS 3RU2126-4FB0 Overload Relay

  • Item NO.:

    3RU2126-4FB0

  • Market Price:

    $750

  • Product Origin:

    Germany

  • Color:

    NEW

  • Product weight:

    0.01KG

  • Lead Time:

    In stock
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                                                                                                                                                                                                                                                                                                • https://images.openai.com/static-rsc-4/MNe76C09b5NHXiJNZYBKCihc7AguH64RlCip6cDzn66xWEeX63UTYIhb9wzBIl_RMiXyKMy7Mp2s8NzVIKnc0OuR7WSk0sx_7mwmLzV7AuFX1bZ40n-MVFfBwpLvpYtlOPLLt06SJW0vZRlQ_bzmy4O8G7d6bb5EDexpV83tEDv4kbOKIa1m1Spl0jXwaQDm?purpose=fullsize

                                                                                                                                                                                                                                                                                                • SIEMENS 3RU2126-4FB0 Overload Relay

                                                                                                                                                                                                                                                                                                  Product Description

                                                                                                                                                                                                                                                                                                  The SIEMENS 3RU2126-4FB0 is a SIRIUS 3RU2 Thermal Overload Relay designed for motor protection applications. It protects three-phase motors against overload and phase failure and is commonly used together with Siemens SIRIUS contactors to build reliable motor starter assemblies.

                                                                                                                                                                                                                                                                                                  This model features a 34–40 A adjustable current range, CLASS 10 thermal protection, S0 size design, and supports manual/automatic reset selection for industrial motor control applications.

                                                                                                                                                                                                                                                                                                  Detailed Specifications

                                                                                                                                                                                                                                                                                                  Parameter Specification
                                                                                                                                                                                                                                                                                                  Manufacturer SIEMENS
                                                                                                                                                                                                                                                                                                  Series SIRIUS 3RU2
                                                                                                                                                                                                                                                                                                  Model 3RU2126-4FB0
                                                                                                                                                                                                                                                                                                  Product Type Thermal Overload Relay
                                                                                                                                                                                                                                                                                                  Protection Type Motor Overload Protection
                                                                                                                                                                                                                                                                                                  Size S0
                                                                                                                                                                                                                                                                                                  Number of Poles 3 Pole
                                                                                                                                                                                                                                                                                                  Current Setting Range 34–40 A
                                                                                                                                                                                                                                                                                                  Rated Operational Current 40 A
                                                                                                                                                                                                                                                                                                  Trip Class CLASS 10
                                                                                                                                                                                                                                                                                                  Overload Release Type Thermal
                                                                                                                                                                                                                                                                                                  Auxiliary Contacts 1 NO + 1 NC
                                                                                                                                                                                                                                                                                                  Reset Function Manual / Automatic Reset
                                                                                                                                                                                                                                                                                                  Mounting Type Contactor Mounting
                                                                                                                                                                                                                                                                                                  Main Circuit Connection Screw Terminal
                                                                                                                                                                                                                                                                                                  Auxiliary Circuit Connection Screw Terminal
                                                                                                                                                                                                                                                                                                  Rated Insulation Voltage 690 V
                                                                                                                                                                                                                                                                                                  Protection Class IP20

                                                                                                                                                                                                                                                                                                   

                                                                                                                                                                                                                                                                                                  Advantages & Features

                                                                                                                                                                                                                                                                                                  • Original Siemens SIRIUS motor protection component
                                                                                                                                                                                                                                                                                                  • Provides reliable thermal overload protection
                                                                                                                                                                                                                                                                                                  • Adjustable current range: 34–40 A
                                                                                                                                                                                                                                                                                                  • CLASS 10 trip characteristic for motor applications
                                                                                                                                                                                                                                                                                                  • Protects against motor overload and phase loss
                                                                                                                                                                                                                                                                                                  • Integrated auxiliary contacts for control feedback
                                                                                                                                                                                                                                                                                                  • Manual/automatic reset selection
                                                                                                                                                                                                                                                                                                  • Compact S0 size design
                                                                                                                                                                                                                                                                                                  • Direct mounting with Siemens SIRIUS contactors

                                                                                                                                                                                                                                                                                                   

                                                                                                                                                                                                                                                                                                  Applications

                                                                                                                                                                                                                                                                                                  • Industrial motor control panels
                                                                                                                                                                                                                                                                                                  • Motor starter assemblies
                                                                                                                                                                                                                                                                                                  • Pumps and fans
                                                                                                                                                                                                                                                                                                  • Conveyor systems
                                                                                                                                                                                                                                                                                                  • Machine tools
                                                                                                                                                                                                                                                                                                  • Factory automation equipment
                                                                                                                                                                                                                                                                                                  • HVAC systems
                                                                                                                                                                                                                                                                                                  • Process control equipment

                                                                                                                                                                                                                                                                                                  Precautions

                                                                                                                                                                                                                                                                                                  • Confirm motor rated current before setting the overload adjustment.
                                                                                                                                                                                                                                                                                                  • Ensure compatibility with the matching Siemens contactor size.
                                                                                                                                                                                                                                                                                                  • Do not exceed the 34–40 A setting range.
                                                                                                                                                                                                                                                                                                  • Disconnect power before installation or maintenance.
                                                                                                                                                                                                                                                                                                  • Use suitable short-circuit protection in the motor circuit.

                                                                                                                                                                                                                                                                                                   

The structure and details of the product：

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