Siemens 3RA21254CA270AP6 Direct-on-Line Motor Starter
Specifications
| Parameter | Value |
|---|---|
| Control / Drive Type | Motor Starter |
| Output Current | 22 A |
| Motor Type | AC Motor |
| Mounting | DIN Rail |
| Number of Motors | 1 |
| Operating Temperature | 20°C to 60°C |
| Encapsulation | Box |
| Product Status | Active |
| RoHS Compliance | Non-compliant |
The unit belongs to the Siemens SIRIUS 3RA2 series of DOL starters. It handles a single AC motor at up to 22 A per the title rating band of 17–22 A. The DIN Rail form factor suits compact control cabinet layouts. Operating temperature range of 20°C to 60°C suits enclosed panel environments without active cooling.
Comparison with Alternates
Readers must independently verify that any alternate listed here meets the application requirements; similarity values reflect parametric overlap only and do not constitute interchangeability endorsement.
| MPN | Title | Output Current | Mounting | Voltage |
|---|---|---|---|---|
| 3RA21254CA270AP6 | STARTER DOL S0 17-22A 240VAC SCR | 22A | DIN Rail | 240 VAC |
| 3RA21254CA270AK6 | STARTER DOL S0 17-22A 120VAC SCR | 22A | DIN Rail | 120 VAC |
| 3RA21254DA270AP6 | STARTER DOL S0 20-25A 240VAC SCR | 22A | DIN Rail | 240 VAC |
| 3RA21254AA260AP6 | STARTER DOL S0 11-16A 240VAC SCR | 15.5A | DIN Rail | 240 VAC |
| 3RA21254EA270AP6 | STARTER DOL S0 27-32A 240VAC SCR | 29A | DIN Rail | 240 VAC |
| 3RA21254CD270AP6 | STARTER DOL FB S0 17-22A 240VAC | 22A | Chassis | 240 VAC |
| 3RA21254CD270AK6 | STARTER DOL FB S0 17-22A 120VAC | 22A | Chassis | 120 VAC |
| 3RA21254CD270BB4 | STARTER DOL FB S0 17-22A 24VDC SCRE | 22A | Chassis | 24 VDC |
| 3RA21254CA270BB4 | STARTER DOL S0 17-22A 24VDC SCRE | 22A | Chassis | 24 VDC |
- 3RA21254CA270AK6 — Same S0 size and 22 A rating; 120 VAC control voltage instead of 240 VAC. Shares DIN Rail mounting and RoHS non-compliant status.
- 3RA21254DA270AP6 — Same 240 VAC SCR version; rating band shifts to 20–25 A. DIN Rail mount preserved.
- 3RA21254AA260AP6 — Lower current band (11–16 A, 15.5 A output); 240 VAC and DIN Rail retained. Shares the SCR style.
- 3RA21254EA270AP6 — Higher current band (27–32 A, 29 A output); 240 VAC and DIN Rail retained. Same SCR topology.
- 3RA21254CD270AP6, 3RA21254CD270AK6, 3RA21254CD270BB4 — FB (furniture-style chassis mount) variants; output current and voltage coverage overlap but differ mechanically from DIN Rail mounting.
- 3RA21254CA270BB4 — 24 VDC coil version of the seed; 22 A output but chassis mounting rather than DIN Rail.