3RA2921-1BA00

The 3RA2921-1BA00 is a Siemens SIRIUS screw terminal block module, suitable for DC operating voltage. It can combine a 3RV2.1 or 3RV2.2 circuit breaker with a 3RT2.2 contactor into a single starter. It is also compatible with the 3RW3 soft starter and the 3RF34 solid-state contactor. Kenxin Motor provides original factory stock and technical consultation.

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Siemens 3RA2921-1BA00 DC connection module

Product Positioning

The 3RA2921-1BA00 is a Siemens SIRIUS screw terminal block module designed for DC operating voltage. It is used for electrical and mechanical connections between 3RV2.1 and 3RV2.2 circuit breakers and 3RT2.2 contactors, and can be extended to combinations of 3RW3 soft starters and 3RF34 solid-state contactors. Kenxin Motors is an authorized Siemens distributor, providing genuine Siemens parts.

Core Product Advantages and Features

DC operation dedicated

Designed for DC control circuits to ensure stable operation of the connection module under DC voltage.

Screw terminal wiring

Securely fastened with screw terminals, ensuring reliable wiring, suitable for industrial environments requiring long-term stable operation.

Wide range of applications

In addition to the 3RV2.1/3RV2.2 circuit breakers, it is also applicable to the 3RW3 soft starter and the 3RF34 solid-state contactor.

Electromechanical dual function

A single module simultaneously performs electrical conduction and mechanical fixation, reducing the need for additional wiring and brackets.

Original factory goods

Kenxin Motors is an authorized distributor of Siemens products and provides genuine product warranties.

project	Specification
Applicable circuit breakers	3RV2.1 and 3RV2.2 series
Applicable contactors	3RT2.2 series
Other compatible models	3RW3 soft starter, 3RF34 solid-state contactor
Terminal type	Screw terminals
Operating voltage	Direct current (DC)
Place of origin	Hungary

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