3RU2136-4HB0
The 3RU2136-4HB0 belongs to the SIRIUS 3RU2 thermal overload relay S2 size series. It has a current setting range of 40...50A, is installed by direct contactor mounting, and has 1 NO + 1 NC auxiliary contacts. It is suitable for overload protection applications of medium and large three-phase motors.
Product Positioning
The 3RU2136-4HB0 is a Siemens SIRIUS 3RU2 series S2 size thermal overload relay with a current adjustment range of 40...50A. It can be directly mounted on a 3RT20 series contactor and is used for overload, phase loss, and imbalance protection of three-phase motors.
Core Product Advantages and Features
Current adjustable from 40 to 50A
Suitable for three-phase motors with a full-load current between 40 and 50 amps, the trip current can be precisely set according to the actual load.
Contactor direct mounting design
It can be directly installed on the 3RT20 series S2 contactor without additional wiring, shortening installation time and saving control panel space.
Class 10 Escape Feature
Compliant with IEC Class 10 overload trip curve, balancing motor starting and overload protection requirements.
1NO+1NC auxiliary contact
Provides a signal feedback contact that can be linked to the control circuit to display the tripped status and interrupt the contactor coil.
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3RU2136-4HB1
The Siemens SIRIUS 3RU2136-4HB1 is an S2-size thermal overload relay with a current range of 40 to 50 A. Its stand-alone design eliminates the need for direct contactor mounting, making it suitable for control panel layouts with separate wiring.
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3RU2136-4GB1
The 3RU2136-4GB1 belongs to the SIRIUS 3RU2 thermal overload relay S2 size series, with a current setting range of 36...45A. It is an independent installation type with 1 NO + 1 NC auxiliary contacts and can be installed separately in the control panel with a terminal block.
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3RU2136-4GB0
The 3RU2136-4GB0 belongs to the SIRIUS 3RU2 thermal overload relay S2 size series, with a current setting range of 36...45A. It adopts a direct contactor mounting method and has 1 NO + 1 NC auxiliary contacts, making it suitable for medium and large three-phase motor protection applications.