The Siemens SITAS 4AM5242-5AJ10-0FA0 is a 630 VA single-phase control transformer that steps down 400 V primary to 110 V secondary for industrial control circuits. Delivering 5.73 A continuous with 2350 VA short-term capacity, it reliably powers contactor coils, relays, solenoid valves, and control electronics in automation panels requiring 110 V control voltage — common in marine, offshore, and certain regional industrial standards.

Key Features

• 110 V secondary output at 5.73 A for control circuits in 110 V standard installations
• Adjustable primary taps at 380/400/420 V (±5%) compensate for supply voltage fluctuations
• 2350 VA short-term capacity (3.7× nominal) handles high inrush from contactor coils and solenoid banks
• Low inrush current design simplifies primary-side protection coordination
• Compact EI 150/48 core: 152 × 144 × 110 mm footprint
• 50/60 Hz dual-frequency operation for global industrial power compatibility
• IP00 open-type construction for enclosed panel or cabinet mounting

Technical Data

Applications

This transformer is purpose-built for supplying 110 V control circuits in industrial machinery, motor control centers, and automation systems — particularly in marine, offshore, and regions where 110 V control voltage is standard practice. The 2350 VA S6 rating provides ample headroom for contactor inrush and momentary overloads, while the compact EI 150/48 core fits standard control panel layouts. The ±5% adjustable primary taps ensure stable 110 V output even with mains voltage fluctuations.