Product Specifications
- Brand
- Siemens
- Part Number
- 4AM5742-5AJ10-0FA0
- Product Type
- Control Transformer
- Series
- SITAS 4AM5742
- Rated Power
- 1,000 VA
- Primary Voltage
- 400 V (taps: 380/400/420 V)
- Secondary Voltage
- 110 V
- Secondary Current
- 9.09 A
- Short-Time Power (S6)
- 5,000 VA
- Frequency
- 50/60 Hz
- Mounting
- Screw Mount
Product Description
The SITAS 4AM5742-5AJ10-0FA0 is a 1,000VA single-phase control transformer converting 400V mains to 110V at 9.09A. The three-tap primary (380/400/420V) compensates for voltage variation common in industrial facilities.
Electrical Performance
Rated at 1,000VA continuous with a short-time power rating of 5,000VA (S6 duty) — 5x headroom. The EI 150/90 core achieves approximately 93 percent efficiency. Full galvanic isolation via II0 vector group. 50/60Hz operation.
Mechanical Design
Substantial 152x144x132mm IP00 open-frame design with screw terminals and screw mounting. Class B (130 C) insulation. Weighs approximately 15 kg.
Application
Designed for large control panels on European 400V three-phase networks, powering extensive 110V control circuits with multiple motor starters, large contactor banks, and solenoid-operated equipment.
Decision Parameters
| Parameter | Value |
|---|---|
| Rated Power | 1,000 VA |
| Primary Voltage | 400 V (taps: 380/400/420 V) |
| Secondary Voltage | 110 V |
| Secondary Current | 9.09 A |
| Short-Time Power (S6) | 5,000 VA |
| Efficiency | ~93 percent |
| Insulation Class | B (130 C) |
| Protection Class | IP00 |
| Dimensions (WxHxD) | 152 x 144 x 132 mm |
| Mounting | Screw Mount |
Related Products
- Siemens 4AM5742-5AT10-0FD0 — IP54 dust and splash-proof enclosure, 230V at 3.26A
- Siemens 4AM5742-8JD40-0FA0 — 4.35A at 230V or 8.70A at 115V from dual secondaries, screw terminals
- Siemens 4AM5742-4TN00-0EA0 — 24V at 41.7A with 5,000VA surge for large control panels
- Siemens 4AM5742-8ED40-0FA0 — High-range primary to 575V, 4.35A at 230V, 5kVA S6 surge
Resources & Documentation
Siemens 4AM5742-5AJ10 400V to 110V 1000VA Single-Phase Control Transformer
Product Specifications
- Brand
- Siemens
- Part Number
- 4AM5742-5AJ10-0FA0
- Product Type
- Control Transformer
- Series
- SITAS 4AM5742
- Rated Power
- 1,000 VA
- Primary Voltage
- 400 V (taps: 380/400/420 V)
- Secondary Voltage
- 110 V
- Secondary Current
- 9.09 A
- Short-Time Power (S6)
- 5,000 VA
- Frequency
- 50/60 Hz
- Mounting
- Screw Mount
Resources & Documentation
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