Siemens 3RT20241AD04 Contactors
Family Position — 3RT2024 Series
The 3RT2024 prefix places this contactor within Siemens' S0 form factor family rated for 12A AC-3 duty with AC coils. The AD04 suffix encodes a 2NO/2NC auxiliary contact configuration. Siemens uses the S0 size to denote a 45mm width for this current class.
Contact and Coil Specifications
| Parameter | Value |
|---|---|
| Base Product Number | 3RT2024 |
| Coil Voltage | 42VAC |
| Must Operate Voltage | 33.6 VAC |
| Coil Power | 65VA |
| Contact Form | 3PST-NO (3 Form A) |
| Contact Rating | 12 A |
| Contact Configuration | 2NO/2NC |
Mechanical and Environmental
- Mounting: Chassis Mount, DIN Rail
- Operate Time: 40 ms
- Operating Temperature: 25°C ~ 60°C
- Encapsulation: Box
Alternate Coil Voltages — 3RT2024 Family
The 3RT20241AD04 uses a 42VAC coil. The same base series offers other AC coil voltages. Readers must qualify any alternate independently against their application.
| Spec | 3RT20241AD04 (seed) | 3RT20241AB04 | 3RT20241AF04 | 3RT20241AP04 |
|---|---|---|---|---|
| Coil Voltage | 42VAC | 24VAC | 110VAC | 230VAC |
| Must Operate Voltage | 33.6 VAC | 19.2 VAC | 88 VAC | 184 VAC |
| Contact Rating | 12 A | 12 A | 12 A | 12 A |
| Coil Power | 65VA | 65VA | 65VA | 65VA |
| Similarity (0–1) | — | 1.0 | 1.0 | 1.0 |
3RT20241AB04 shares the 24VAC coil and 12A rating; same DIN-mount chassis footprint.
3RT20241AF04 differs only in 110VAC coil, enabling 120V control circuits; same 12A performance.
3RT20241AP04 uses a 230VAC coil for 240V control circuits; all other specs identical.