3RH1921-2CA10

The Siemens SIRIUS 3RH1921-2CA10 is a front-mounted auxiliary switch module with a single normally open (1NO) contact, cage clamp terminal wiring, 10A/24-230V AC rated, and suitable for 3RT1 series contactors of sizes S0 to S12.

Share To

Siemens SIRIUS 3RH1921-2CA10 Front-Mounted Single Normally Open Auxiliary Switch

Product Positioning

The 3RH1921-2CA10 is a front-mounted auxiliary switch module for the older SIRIUS 3RH19 model. It provides a single normally open (1NO) contact, cage-clamp terminal wiring, and is suitable for expanding the signal points of 3RT1 series contactors of sizes S0 to S12.

Core Product Advantages and Features

1NO single contact design

It provides a single normally open contact, suitable for simple status indication or signal expansion applications.

Front-mounted snap-fit installation

It is assembled to the contactor body using a front-mounted snap-fit method, ensuring consistent installation angles for easy maintenance.

Cage clamp terminal wiring

It uses cage-clamp terminals, which ensures fast wiring and stable contact that is not easily loosened.

Applicable to sizes S0 to S12

The 3RT1 series contactors are compatible with various sizes, offering great flexibility in selection and application.

project	Specification
Contact configuration	1 NO
Installation location	Front-installed
Terminal type	Cage Clamp Terminals
Rated current and voltage	10 A / 24-230 V AC
Applicable host	SIRIUS 3RT1 series contactors

Recommend

3RH1921-2DA11

The Siemens SIRIUS 3RH1921-2DA11 is a side-mounted auxiliary switch module with a 1NO+1NC contact configuration, cage clamp terminal wiring, 10A/24-230V AC rated, suitable for 3RT1 series contactors of sizes S0 to S12, and has a mechanical life of tens of millions of cycles.

3RH1921-2CA01

The Siemens SIRIUS 3RH1921-2CA01 is a front-mounted auxiliary switch module with a single normally closed (1NC) contact, spring-loaded terminal wiring, rated at 690V/10A, and suitable for extended applications of 3RT1 series contactors in sizes S0 to S12.

3RH1921-1MA20

The Siemens SIRIUS 3RH1921-1MA20 is an auxiliary switch module with a 2-pole structure, bottom-entry screw terminal wiring, and snap-fit installation on the motor contactor body. The original manufacturer's data indicates that it has been discontinued, and it will be supplied by the SIRIUS 3RH2 series.