Siemens 3RH29111DA02 Auxiliary Switch
Lateral-mount auxiliary switch block with two NC contacts, designed for SIRIUS 3RH and 3RT contactor series in S00 and S0 frame sizes.
3RH29111DA02 Specifications
| Parameter | Value |
|---|---|
| Accessory Type | Auxiliary Switch |
| Contact Configuration | 2NC |
| Series | SIRIUS |
| Base Product Number | 3RH29111 |
| Compatible Series | 3RH, 3RT |
| Encapsulation | Box |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
The block snaps laterally onto contactors, providing auxiliary signaling contacts without modifying the power circuit. The lateral mounting position allows auxiliary contact addition in tight cabinet layouts where front-mounting space is limited.
Cross-Series Comparison
The reader must verify all alternatives independently for specific application fit.
| MPN | Contacts | Similarity | Notes |
|---|---|---|---|
| 3RH29111DA02 | 2NC | — | Lateral mount, S00+S0 |
| 3RH29111MA02 | 2NC | 0.905 | Block mount, 3RH2/3RT2 |
| 3RH29112DA02 | 2NC | 0.890 | Lateral mount, base 3RH29112 |
| 3RH29111HA03 | 3NC | 0.882 | Screw terminals, S00 |
| 3RH29114HA02 | 2NC | 0.879 | Ring lug terminals, S00 |
3RH29111MA02 shares the same base product number but uses block-style mounting rather than lateral. 3RH29112DA02 differs by base number suffix (12 vs 11), affecting contact arrangement compatibility with specific contactor types.
Mounting and Compatibility
- Snaps onto SIRIUS S00 and S0 frame contactors laterally
- Compatible with 3RH contactor relays and 3RT power contactors
- ROHS3 compliant for industrial equipment export
- Box packaging (individual unit)