3RU2136-4KB0
The Siemens SIRIUS 3RU2136-4KB0 is an S2-size thermal overload relay with a current range of 62 to 73 A. It can be directly connected to the 3RT203 series contactor, meets Class 10 tripping rating, and is suitable for high-power three-phase motors.
Product Positioning
The Siemens SIRIUS 3RU2136-4KB0 is an S2-size thermal overload relay with a current adjustment range of 62 to 73A. It can be directly connected to the SIRIUS 3RT203 series contactor and is suitable for the protection of three-phase motors with large loads.
Core Product Advantages and Features
62-73A current range
The current scale covers the rated current of higher power three-phase motors, allowing for more precise protection settings.
Direct mounting
It can be directly mounted on the SIRIUS 3RT203 series contactor to form a compact starting protection unit.
Class 10 Breakthrough Level
It meets the IEC heat buildup breakout curve standard, balancing response speed and protection stability.
Overload and phase loss protection
It also features overload current and phase loss detection to prevent damage from single-phase operation of the motor.
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3RU2136-4QB0
The Siemens SIRIUS 3RU2136-4QB0 is an S2-size thermal overload relay with a current range of 47 to 57 A. It can be directly connected to the 3RT203 series contactor. Both the main and auxiliary circuits use screw terminals and comply with IEC motor protection standards.
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3RU2136-4JD0
The Siemens SIRIUS 3RU2136-4JD0 is an S2-size thermal overload relay with a current range of 54 to 65 A. The difference between it and the 4JB0 model with the same current value is that the auxiliary circuit uses a spring-loaded terminal design, allowing for tool-free, quick crimping of the wiring.
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3RU2136-4JB1
The Siemens SIRIUS 3RU2136-4JB1 is an S2-size thermal overload relay with a current range of 54 to 65 A. Its stand-alone design allows for independent configuration on a control panel and is suitable for distributed wiring configurations.