Instantaneous
Siemens catalog image for this reference; may represent the product family.
AUXILIARY SWITCH
3RH2921-1DA11 — Auxiliary switch
SKU 3RH2921-1DA11auxiliary switch, lateral, 1 NO + 1 NC, on the left: 51/52, 63/64, on the right: 31/32, 43/44, current path: 1 NC, 1 NO, screw terminal, for contactors 3RT2 and contactor relays 3RH2
Active Product
0,037 KgNet weight
3RH2921-1DA11Product reference
SiemensManufacturer
PRODUCT DATA
Technical specifications
Source: Siemens product catalog.
Verified September 21, 2026.
| Product reference | 3RH2921-1DA11 |
|---|---|
| Manufacturer description | auxiliary switch, lateral, 1 NO + 1 NC, on the left: 51/52, 63/64, on the right: 31/32, 43/44, current path: 1 NC, 1 NO, screw terminal, for contactors 3RT2 and contactor relays 3RH2 |
| Product Family | Instantaneous |
| Net weight | 0,037 Kg |
| Packaging dimensions (L x W x H) | 70,00 x 60,00 x 20,00 mm |
| Country of origin | Romania |
| EAN | 4011209790285 |
| UPC | 662643908497 |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Siemens reference ↗.