Siemens 14DUD12AD Full-Voltage Non-Reversing Motor Starter
Similar catalog parts
The following in-catalog parts share the same specification profile with the primary part. Selection requires the user's own qualification against their application requirements.
| Spec key | 14DUD12AD (primary) | 14DUD12AA | 14DUD12AF | 14DUD12AJ |
|---|---|---|---|---|
| Control / Drive Type | Motor Starter | Motor Starter | Motor Starter | Motor Starter |
| Current - Output | 27A | 27A | 27A | 27A |
| Motor Type | AC Motor | AC Motor | AC Motor | AC Motor |
| Mounting Type | Chassis Mount | Chassis Mount | Chassis Mount | Chassis Mount |
| Number of Motors | 1 | 1 | 1 | 1 |
| Operating Temperature | 20°C ~ 40°C | 20°C~40°C | 20°C ~ 40°C | 20°C ~ 40°C |
| Encapsulation | Box | Box | Box | Box |
| RoHS | RoHS non-compliant | RoHS non-compliant | RoHS non-compliant | RoHS non-compliant |
| Similarity (0–1) | — | 0.92 | 0.92 | 0.92 |
Why 14DUD12AA is similar: Identical prefix block (14DUD12A) and the same Motor Starter designation for AC motors at 27A output with Chassis Mount configuration. Differs only in the trailing suffix code, which typically encodes a termination style or enclosure variant.
Why 14DUD12AF is similar: Shares the full Motor Starter spec profile including operating temperature range and Box encapsulation. The same AC motor compatibility and single-motor output rating as the primary part.
Why 14DUD12AJ is similar: Matches the primary part on all stated parameters — 27A output, AC Motor type, Chassis Mount, Box packaging, and the same temperature rating. The MPN suffix variation suggests a variant in the same size/power class.
Key parameters — 14DUD12AD
| Parameter | Value |
|---|---|
| Control / Drive Type | Motor Starter |
| Current - Output | 27A |
| Motor Type | AC Motor |
| Mounting Type | Chassis Mount |
| Number of Motors | 1 |
| Operating Temperature | 20°C ~ 40°C |
| Encapsulation | Box |
| Product Status | Active |
| RoHS Compliance | RoHS non-compliant |
The "14DUD12" prefix in the Siemens numbering aligns with Italian-format Sirius ordering codes. The suffixes AA, AF, AJ, AD, and AG fall within the same size/rating band for full-voltage non-reversing (FVNR) starters — all supporting a single AC motor in the 5.5–22A range. Operating temperature is specified from 20°C to 40°C, consistent with enclosed or cabinet-mounted applications without direct environmental exposure.
Engineering verification checklist
- Motor nameplate current is within the 5.5–22A range supported by this starter family.
- Supply voltage and frequency are compatible with the FVNR configuration.
- Chassis mounting orientation and enclosure clearance are confirmed for the panel location.
- Single-motor output rating matches the branch circuit design (27A output rating).
- Ambient temperature at the mounting location stays within 20°C–40°C.
- RoHS non-compliant status is acceptable for the installation region and application.
- Control circuit coil voltage and any auxiliary contact configuration are verified against the plant standard.
- Mechanical dimensions and mounting hole pattern are checked against existing enclosure or subpanel layout.
- No derating is required given the chassis-mount thermal environment.
FAQ
What motor size does the Siemens 14DUD12AD support? The catalog records indicate a 5.5–22A motor range with a 27A output rating. This covers standard three-phase AC motors in that current band; verify the nameplate rating against branch protection coordination.
What mounting style is used? The part uses Chassis Mount installation. Confirm that the subpanel or cabinet structure accommodates this form factor before ordering.
Is this part RoHS compliant? No. The catalog record lists RoHS non-compliant status. Check whether this affects procurement or installation in your region or facility.