3RA2921-1A

The 3RA2921-1A is a Siemens SIRIUS screw terminal block module suitable for AC operating voltage circuits. It combines a 3RV2.1 or 3RV2.21 circuit breaker with a 3RT2.2 contactor into a single 3-pole starter, providing both electrical connection and mechanical fixation. Installation is simple. Kenxin Motor provides original factory stock and complete technical consultation services.

Share To

Siemens 3RA2921-1A AC Connection Module

Product Positioning

The 3RA2921-1A is a Siemens SIRIUS screw terminal block module, suitable for AC operating voltage. It is used for electrical and mechanical connections between 3RV2.1 and 3RV2.21 circuit breakers and 3RT2.2 contactors, forming a 3-pole integrated starter. The module features quick installation and secure wiring. Kenxin Motors is an authorized Siemens distributor, providing genuine Siemens products and technical support.

Core Product Advantages and Features

Applicable to AC operation

Designed specifically for AC control circuits, ensuring stable operation of the connection module under AC voltage.

Screw terminal wiring

The screw terminals ensure reliable contact and facilitate routine inspection and maintenance.

3-pole integrated design

Integrating the circuit breaker and contactor into a 3-pole starter saves installation space in the distribution box.

Applicable to 3RV2.1/3RV2.21

Precisely matches the circuit breaker size, and fits snugly when assembled with the 3RT2.2 contactor.

Original factory goods

Kenxin Motors is an authorized distributor of Siemens products, providing genuine product warranty service.

project	Specification
Applicable circuit breakers	3RV2.1 and 3RV2.21 series
Applicable contactors	3RT2.2 series
Terminal type	Screw terminals
Operating voltage	Communication (AC)
Extreme number	3 poles

Recommend

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.

3RA2916-1A

The 3RA2916-1A is a safety main circuit connector for Siemens SIRIUS series S00 contactors. It connects two 3RT201 contactors in series and is commonly used in safety-related shutdown circuits requiring dual backup. It uses screw terminal wiring for easy installation. Kenxin Motors provides original stock and selection advice.

3RA2913-3EA2

The 3RA2913-3EA2 is a dedicated bottom wiring module for Siemens SIRIUS S00 size contactor assemblies. Featuring a spring terminal design, it is suitable for forward and reverse starter assemblies with two contactors installed side-by-side without spacing. It simplifies load-side wiring and improves assembly efficiency. Kenxin Motors provides original factory stock and technical consultation services.