Procurement Zone

The Siemens SIRIUS 3RH1981-1DA11 is a first-side-mounted auxiliary switch module that provides 1 NO + 1 NC contact and screw terminal wiring. It is designed specifically for the 3RT148 series contactors to expand the number of auxiliary contacts and control circuit signal points.

The Siemens SIRIUS 3RH1921-1XA22-0MA0 is a front-mounted auxiliary switch module with a 4-pole 2NO+2NC contact configuration (numbers 5 to 8), screw terminal wiring, and is suitable for 3RT1 contactors of sizes S0 to S12, which can expand the number of control signal points.

The Siemens SIRIUS 3RH1921-2JA11 is a second-side-mounted auxiliary switch module with 2 poles, 1 NO + 1 NC contacts, and spring-loaded (cage clamp) terminals for quick wiring. It is suitable for expanding the 3RT1 series motor contactors of sizes S3 to S12.

The Siemens SIRIUS 3RH1921-2EA02 is a first-side mounted auxiliary switch module with two normally closed (2NC) contacts and spring-loaded terminal wiring. It is suitable for 3RT1 series motor contactors of sizes S0 to S12 and is commonly used in power outage monitoring circuits.

The Siemens SIRIUS 3RH1921-2DE11 is a side-mounted auxiliary switch module with a 1NO+1NC contact configuration, cage clamp terminal wiring, and is suitable for 3RT1 series contactors of sizes S0 to S12. The operating temperature range is -25 to 60 degrees Celsius.

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.

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.

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.

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.

The 3RH1921-1KA20 is a dedicated second-side auxiliary switch assembly for the SIRIUS 3RT1 contactor. It features 2 NO contacts, screw terminal wiring, conforms to EN50005 standard, is suitable for S3~S12 size contactors, has a mechanical operation life of up to 10 million cycles, and is stable and durable.

The 3RH1921-1KA11 is an auxiliary switch assembly mounted on the second side of the SIRIUS 3RT1 contactor. It has one normally open contact and one normally closed contact, screw terminal wiring, conforms to EN50005 standard, and is suitable for contactors of sizes S3 to S12, facilitating the expansion of control signals.

The 3RH1921-1JA11 is an auxiliary switch assembly mounted on the second side of the SIRIUS 3RT1 contactor. It has one normally open contact and one normally closed contact, screw terminal wiring, conforms to EN50012 standard, is suitable for contactors of sizes S3 to S12, and is reliable and durable.

3RH1921-1HA22 is a SIRIUS 3RT1 contactor with a front-mounted 4-pole auxiliary switch assembly, consisting of 2 normally open and 2 normally closed contacts, screw terminal wiring, conforming to EN50012 standard, and suitable for S0~S3 size contactors. The original manufacturer's note indicates that it is no longer in production.

3RH1921-1HA13 is a SIRIUS 3RT1 contactor with a front-mounted 4-pole auxiliary switch assembly, consisting of 1 normally open and 3 normally closed contacts, screw terminal wiring, conforming to EN50012 standard, and suitable for S0~S3 size contactors. The original manufacturer's note indicates that it is no longer in production.

The 3RH1921-1FA22 is a SIRIUS 3RT1 contactor with a front-mounted 4-pole auxiliary switch assembly, consisting of 2 normally open and 2 normally closed contacts, screw terminal wiring, conforming to EN50005 standard, and suitable for S0~S3 size contactors, expanding the number of signal points.