Product Specifications
- Brand
- Siemens
- Part Number
- 4AM6442-5AT10-0FA1
- Product Type
- Control Transformer
- Series
- SITAS 4AM6442
- Rated Power
- 2,000 VA
- Primary Voltage
- 400 V (taps: 380/400/420 V)
- Secondary Voltage
- 230 V
- Secondary Current
- 8.70 A
- Short-Time Power (S6)
- 9,700 VA
- Frequency
- 50/60 Hz
- Terminal Type
- Cage-Clamp
- Mounting
- Screw Mount
Product Description
The SITAS 4AM6442-5AT10-0FA1 is the cage-clamp variant of the flagship 2000VA 400V-to-230V control transformer. Identical in electrical performance to the -0FA0 but with spring-loaded cage-clamp terminals for tool-free, vibration-resistant wiring — ideal for panel builders prioritizing fast assembly and maintenance-free connections.
Electrical Performance
Rated at 2,000VA continuous with a short-time power rating of 9,700VA (S6 duty) — nearly 5x headroom. The EI 174/102 laminated core achieves approximately 96 percent efficiency. Primary taps at 380/400/420V. Full galvanic isolation via II0 vector group.
Mechanical Design
Substantial 158x176x164mm IP00 open-frame construction. Cage-clamp spring-loaded terminals for vibration-resistant, maintenance-free connections and faster panel assembly than conventional screw terminals. Screw-mount chassis. Class B (130 C) insulation, rated for 40 C ambient. Weighs approximately 25 kg.
Application
Same flagship 2000VA European control panel application as the -0FA0, preferred where panel builders want tool-free wiring and vibration-proof connections for the largest multi-contactor and multi-drive automation systems.
Decision Parameters
| Parameter | Value |
|---|---|
| Rated Power | 2,000 VA |
| Primary Voltage | 400 V (taps: 380/400/420 V) |
| Secondary Voltage | 230 V |
| Secondary Current | 8.70 A |
| Short-Time Power (S6) | 9,700 VA |
| Efficiency | ~96% |
| Insulation Class | B (130 C) |
| Protection Class | IP00 |
| Dimensions (WxHxD) | 158 x 176 x 164 mm |
| Terminal Type | Cage-Clamp |
| Mounting | Screw Mount |
Related Products
- Siemens 4AM6442-5AT10-0FA0 — 8.70A at 230V from 400V, 9,700VA S6 — highest SITAS rating
- Siemens 4AM6442-8JD40-0FA0 — Widest coverage at highest SITAS power, dual 115V secondaries
Resources & Documentation
Siemens 4AM6442-5AT10 400V to 230V 2000VA Control Transformer, Cage-Clamp
Product Specifications
- Brand
- Siemens
- Part Number
- 4AM6442-5AT10-0FA1
- Product Type
- Control Transformer
- Series
- SITAS 4AM6442
- Rated Power
- 2,000 VA
- Primary Voltage
- 400 V (taps: 380/400/420 V)
- Secondary Voltage
- 230 V
- Secondary Current
- 8.70 A
- Short-Time Power (S6)
- 9,700 VA
- Frequency
- 50/60 Hz
- Terminal Type
- Cage-Clamp
- Mounting
- Screw Mount








