3RA2921-1B

The 3RA2921-1B is a basic model of the Siemens SIRIUS screw terminal DC connection module, with the same functional positioning as the 3RA2921-1BA00. It can combine a 3RV2 circuit breaker and a 3RT2.2 contactor into an integrated starter, and is also suitable for the 3RW3 soft starter and the 3RF34 solid-state contactor. Kenxin Motor has stock available and provides selection consultation.

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Siemens 3RA2921-1B DC connection module

Product Positioning

3RA2921-1B is the basic model of the Siemens SIRIUS DC screw terminal block module, functionally identical to the complete order code 3RA2921-1BA00. It is used for electrical and mechanical connections between 3RV2 series circuit breakers and 3RT2.2 contactors, and can also be extended to applications with 3RW3 soft starter assemblies. Kenxin Motors is an authorized Siemens distributor, supplying genuine original parts.

Core Product Advantages and Features

Basic models of the same series

It belongs to the same product family as 3RA2921-1BA00, and has the same functions and wiring method.

DC circuit applicable

Designed specifically for DC operating voltage, ensuring a stable and reliable connection.

Screw terminal fixing

Electrical connections are made using screw terminals, making them suitable for applications requiring regular maintenance and repair.

Compatible with multiple models

In addition to the 3RV2 circuit breaker and 3RT2.2 contactor, it is also applicable to the 3RW3 and 3RF34 series.

Original factory goods

Kenxin Motors is an authorized distributor of Siemens products, and all products are genuine original products.

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)
Packaging	10 pieces/pack, net weight approximately 0.053 kg
Place of origin	Hungary

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