Siemens 3RH2911-2FA22-0MC0 auxiliary switch block, 2 NO + 2 NC, 10 A maximum, spring-loaded terminals, snap-on mounting, IP20 front.
| Parameter | Value |
|---|---|
| Rated value @ 24 V | 10 A |
| Rated value @ 60 V | 4.7 A |
| Rated value @ 110 V | 3 A |
| Rated value @ 220 V | 1.2 A |
| Parameter | Value |
|---|---|
| Auxiliary contact reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Parameter | Value |
|---|---|
| Mounting method | snap-on mounting |
| Parameter | Value |
|---|---|
| Operating temperature range | -25 ... +60 °C |
| Storage temperature range | -55 ... +80 °C |
| Parameter | Value |
|---|---|
| Width | 36 mm |
| Height | 41.5 mm |
| Depth | 47.7 mm |
The 3RH2911-2FA22-0MC0: This auxiliary switch block provides 2 NO + 2 NC contacts arranged as 13/14, 21/22, 31/32, 43/44 — the current path alternates NO, NC, NC, NO.
AWG 20–14 for the auxiliary contact wiring.
IP20 on the front face protects against finger contact in the panel. Surge voltage resistance is 6 kV, supporting the 690 V insulation class at pollution degree 3.
It provides 2 NO + 2 NC contacts with spring-loaded terminals and snap-on DIN rail mounting.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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