Siemens 4AM4042-8DD40-0FA0 SITAS Isolation Transformer - 0.25 kVA
Siemens 4AM4042-8DD40-0FA0 SITAS isolation transformer.
The Siemens 4AM4042-8DD40-0FA0 is a single-phase SITAS transformer with a nominal power of 0.25 kVA (S6 rated at 0.85 kVA). It offers a broad primary voltage range from 550V down to 208V and provides two isolated secondary windings, each at 115V. The secondary current rating is 1.087A per winding or 2.174A when used in parallel (verify configuration support). This transformer operates at 50/60 Hz, has a 40°C temperature rise, and is IP00 rated.
This isolation and control transformer adheres to EN 61558-2-1, -2-2, and -2-4 standards and is UL/CSA recognized. It is ideal for applications requiring electrical isolation, noise reduction, and flexible primary voltage input for diverse industrial automation setups.
Stanlo Automation, a veteran-owned surplus parts distributor, is your reliable source for the Siemens 4AM4042-8DD40-0FA0 transformer. We provide tested surplus components to ensure operational continuity and value. Trust Stanlo Automation for your essential industrial automation needs.
| Phases | 1 |
| Pn(kVA) | 0.25 |
| Pn(S6)(kVA) | 0.85 |
| Upri(V) | 550-525-500-480-460-440-415-400-380-230-208 |
| Usec(V) | 2x115 |
| Isec(A) | 1.087-2.174 |
| F(Hz) | 50-60 |
| Vector Group | II0/0 |
| Temp Rise | 40°C |
| Insulation Class | B |
| IP Rating | IP00 |
| Connection | Screw/Flat-type |
| Mounting | Screws/DIN Rail |