Product Description
Siemens 3RH1921-1HA22
The Siemens 3RH1921-1HA22 is a front-mountable auxiliary switch block from the SIRIUS series, designed to expand the functionality of 3RT contactors and 3RH contactor relays. It provides additional contacts for control and signaling circuits, featuring two normally open (NO) and two normally closed (NC) contacts. This component is engineered for high reliability and easy installation with screw-type terminals, making it an essential accessory for industrial control applications where status feedback and interlocking are required. Its robust design ensures dependable performance in demanding environments.
Technical Specifications:
- Product Type: Auxiliary switch block, front-mountable
- Number of Contacts: 4 (2 NO + 2 NC)
- Compatibility: For contactors 3RT1 and contactor relays 3RH1 (Sizes S00, S0, S2, S3)
- Terminal Type: Screw terminals
- Rated Insulation Voltage (Ui): 690 V
Siemens 3RH1921-1HA22
Siemens 3RH1921-1HA22 SIRIUS auxiliary switch block with 2 NO + 2 NC contacts. Front-mountable with screw terminals for 3RT1 and 3RH1 contactors, ideal for control circuit expansion.
