Germany Siemens/Siemens 3RB2123-4QB0

Create Date: 2024-8-30 12:03:23|Source: Siemens/Siemens

  • Brand:
    Siemens/Siemens
    Origin:
    Germany
    Price:
    Please contact customer service
    Delivery time:
    Please contact customer service
    Model:
    3RB2123-4QB0
    Product Introduction
    Siemens Thermal Overload Relay 3RB Series, 6 → 25 A, 11 kW, Contact current rating 35 A, Contact voltage rating 690 V AC
Product Description
3RB2123-4QB0 Introduction: Siemens Thermal Overload Relay 3RB series, 6 → 25 A, 11 kW, contact current rating 35 A, contact voltage rating 690 V AC

Germany Siemens/Siemens 3RB2123-4QB0 picture display

Siemens/Siemens 3RB2123-4QB0


Model features introduced

3RB21 series                                                               

Internal Power Auxiliary Contact: 1 NO + 1 NC Manual/Auto Reset Switching Position Indicator, Internal Ground Fault, Electrical Remote Reset Test Function: Phase Fault/Imbalance Sensitivity, Selectable Break Levels 5, 10, 20 and 30 Operation        
Electronic overload relays
The 3RB2 series of solid-state electronic overload relays, which can be connected directly to SiemensSIRIUS contactors, provide precise motor overload protection with enhanced single-phase sensitivity, application: protection of 3-phase AC motors in a 50/60Hz sinusoidal network. These relays are not suitable for protecting single-phase or DC loads, and are selected based on the full current of the motor and the size of the contactor frame, e.g. S00


Model parameters are introduced

attributenumeric value
FLC motor ratings6→25A
Contact current rating35A
Pole configuration3P
rangeSIRIUSClassic
Contact voltage rating690V AC
Installation styleDirect contactors
series3RB
Normal state configurationNormally open/normally closed
Number of auxiliary contacts2
Rated power11kW
Reset methodAutomatic, manual
Connector typescrew
length73mm
depth75mm
width45mm
Operating temperature range-25→+60°C
Maximum operating temperature+60°C
Minimum operating temperature-25°C


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