3RU2126-4BC0

The Siemens SIRIUS 3RU2126-4BC0 thermal overload relay has a current setting range of 14~20A. Both the main and auxiliary circuits use spring-loaded terminals for quick connection and can be directly mounted on an S0-size contactor. It is a Class 10 tripping relay.

Share To

Siemens SIRIUS 3RU2126-4BC0 Thermal Overload Relay 14-20A Spring Terminal Type

Product Positioning

The 3RU2126-4BC0 is a Siemens SIRIUS series S0 size thermal overload relay with a current adjustment range of 14 to 20 amps. Both the main and auxiliary circuits use spring terminals, which can be directly mounted on the contactor, making it suitable for applications requiring quick wiring.

Core Product Advantages and Features

Current adjustment range 14-20A

The trip setting value can be precisely adjusted according to the motor's rated current to provide appropriate overload protection.

Spring-loaded terminal design

Both the main circuit and the auxiliary circuit use spring clip terminals, allowing for quick wiring without the need for screws.

Contactor direct installation

It can be directly mounted on the S0 size contactor body, saving installation space on the distribution panel.

Class 10 Breakthrough Level

The standard jump curve conforms to the general motor starting characteristics, reducing the risk of overheating damage.

project	Specification
Product Series	SIEMENS SIRIUS 3RU2
Current adjustment range	14-20 A
Terminal type	Spring-loaded terminals (main circuit/auxiliary circuit)
Installation method	Contactor direct installation
Applicable size	S0
Auxiliary contact	1 NO + 1 NC
Break away from level	CLASS 10
Regression method	Manual/Automatic Reset

Recommend

3RU2126-4CB0

The Siemens SIRIUS 3RU2126-4CB0 thermal overload relay has a current setting range of 17~22A, a screw terminal design, and can be directly mounted on an S0 size contactor. It has a Class 10 tripping rating and is suitable for overload protection in motor starting circuits.

3RU2126-4BB1

The Siemens SIRIUS 3RU2126-4BB1 thermal overload relay has a current setting range of 14~20A. Both the main and auxiliary circuits use screw terminals, allowing for independent installation. It is suitable for S0 size contactors, has a Class 10 tripping rating, and protects motor circuits.

3RU2126-4BB0

The Siemens SIRIUS 3RU2126-4BB0 thermal overload relay has a current setting range of 14~20A, a screw terminal design, and can be directly mounted on an S0 size contactor. It has a Class 10 tripping rating and is suitable for overload protection in motor starting circuits.