The Siemens SITAS 4AM5242-5CT10-0FA0 is a 630 VA single-phase control transformer that steps down 440 V primary to 230 V secondary for industrial control circuits. Designed for installations where 440 V mains supply is standard — common in marine, offshore, and certain regional industrial power systems — it delivers 2.74 A continuous with 2350 VA short-term capacity for contactor coils, relays, and PLC power supplies.

Key Features

• 440 V primary with ±5% taps (418/440/462 V) accommodates supply voltage variations in 440 V mains systems
• 2350 VA short-term capacity (3.7× nominal) handles high inrush from contactor coils and relay 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 designed for supplying control circuits in industrial machinery and automation panels operating on 440 V mains — common in marine vessels, offshore platforms, and certain regional industrial power systems. The ±5% adjustable primary taps provide adaptability for installations with fluctuating supply voltage, while the compact EI 150/48 footprint fits standard control panel layouts. The 2350 VA S6 rating handles contactor and relay inrush currents in demanding applications.