Product Specifications
Brand: Siemens
Part Number: 4AM6142-5AT10-0FA0
Product Type: Control Transformer
Series: SITAS 4AM6142
Rated Power: 1,600 VA
Primary Voltage: 400 V (taps: 380/400/420 V)
Secondary Voltage: 230 V
Secondary Current: 6.96 A
Short-Time Power (S6): 7,300 VA
Frequency: 50/60 Hz
Mounting: Screw Mount
Product Description
The SITAS 4AM6142-5AT10-0FA0 is the standard screw-terminal variant of the 400V-to-230V 1600VA control transformer — the most common configuration in European industrial control panels. Sharing the identical electrical performance of the -0FA1 variant, it steps 400V line-to-neutral down to 230V at 6.96A with conventional screw terminals for standard panel wiring practices.
Electrical Performance
Rated at 1,600VA continuous with a short-time power rating of 7,300VA (S6 duty). The laminated EI core achieves approximately 96 percent efficiency. Primary taps at 380/400/420V (±5 percent) handle supply variations. Full galvanic isolation via II0 vector group.
Mechanical Design
Substantial 164x176x138mm IP00 open-frame construction. Screw terminals on a screw-mount chassis — the standard configuration for conventional panel wiring. Class B (130 C) insulation, rated for 40 C ambient. Weighs approximately 28 kg.
Application
The go-to choice for European machine builders, panel shops, and system integrators where 400V three-phase building supply must feed 230V control circuits. Powers contactors, relays, PLCs, and HMIs in standard industrial automation panels.
Decision Parameters
| Parameter | Value |
|---|---|
| Rated Power | 1,600 VA |
| Primary Voltage | 400 V (taps: 380/400/420 V) |
| Secondary Voltage | 230 V |
| Secondary Current | 6.96 A |
| Short-Time Power (S6) | 7,300 VA |
| Efficiency | ~96% |
| Insulation Class | B (130 C) |
| Protection Class | IP00 |
| Dimensions (WxHxD) | 164 x 176 x 138 mm |
| Mounting | Screw Mount |
Related Products
- Siemens 4AM6142-8DD40-0FA0 — Three-tap primary from 480-525V, 6.96A at 230V, 7.3kVA surge
- Siemens 4AM6142-4TJ10-0FA0 — 110V at 14.55A, 7,300VA S6 surge with 96% efficiency
Resources & Documentation
Siemens 4AM6142-5AT10 400V to 230V 1600VA Control Transformer
Product Specifications
Brand: Siemens
Part Number: 4AM6142-5AT10-0FA0
Product Type: Control Transformer
Series: SITAS 4AM6142
Rated Power: 1,600 VA
Primary Voltage: 400 V (taps: 380/400/420 V)
Secondary Voltage: 230 V
Secondary Current: 6.96 A
Short-Time Power (S6): 7,300 VA
Frequency: 50/60 Hz
Mounting: Screw Mount








