The Siemens SITAS 4AT3632-5AT10-0FD0 is a 5000 VA (5 kVA) single-phase control transformer stepping down 400 V primary to 230 V secondary. Unlike open-type IP00 models, this unit features IP54 enclosed construction providing protection against dust ingress and water spray, enabling standalone wall or frame mounting without requiring a separate protective enclosure.

Key Features

• IP54 enclosed housing protects against dust and water spray — suitable for standalone installation outside control cabinets
• Adjustable primary voltage taps at 380/400/420 V (±5%) compensate for supply voltage fluctuations
• Low inrush current design enables fuseless protection when paired with SIRIUS 3RV motor starter protectors
• H-class insulation (55 °C ambient) supports operation in higher-temperature industrial environments
• 50/60 Hz dual-frequency operation covers global industrial power standards
• 94% efficiency minimizes heat generation and operating cost

Technical Data

Applications

This IP54 enclosed transformer is ideal for industrial control circuit supply where standalone mounting outside a control cabinet is required — machine tools, conveyor systems, packaging lines, and process equipment in dusty or washdown environments. The enclosed design eliminates the need for a separate protective cabinet, reducing installation footprint and wiring complexity. The low inrush characteristic supports streamlined fuseless panel design with SIRIUS 3RV circuit breakers for primary-side protection.