Eaton STI0,5 Isolation Transformer 400V to 230V, 500VA

The Eaton STI0,5 is a high-quality single-phase isolation transformer engineered to provide reliable electrical separation and voltage conversion. With a primary input of 400V and a secondary output of 230V, this unit is specifically designed to support industrial control systems and sensitive electronic equipment. It ensures operational safety by providing galvanic isolation, effectively decoupling the load from the main power supply to minimize electrical interference and protect connected devices.

Advantages

This transformer offers robust performance and high reliability in demanding industrial environments. Its design focuses on safety and efficiency, meeting rigorous international standards for control and isolation transformers. The compact construction allows for efficient space utilization within control cabinets, while the high-quality materials ensure long-term durability and consistent power delivery even under varying load conditions.

Suitable for

• Industrial control panels and automation systems
• Galvanic isolation of sensitive electronic equipment
• Voltage conversion for machinery requiring 230V from a 400V supply
• Safety-critical applications requiring electrical separation

When it may not be suitable

This transformer is not intended for outdoor use without a protective enclosure, as it has an IP00 protection rating. It is also not suitable for applications requiring power outputs exceeding its 500VA continuous rating or 1.6kVA short-time rating.

Key specifications

• Rated power: 0.5 kVA
• Short-time rating: 1.6 kVA
• Input voltage: 400V (± 5%)
• Output voltage: 230V
• Frequency: 50-60 Hz
• Protection degree: IP00
• Dimensions: 121 mm x 120 mm x 131 mm

How to use

Installation should be performed by qualified electrical personnel in accordance with local safety regulations. The transformer must be mounted within a suitable protective enclosure to prevent accidental contact with live parts, given its IP00 rating. Ensure that the input and output terminals are connected securely according to the wiring diagram provided with the unit. Proper ventilation must be maintained around the transformer to prevent overheating during operation.

What to consider before purchase

• Verify that the 500VA power rating is sufficient for your specific load requirements.
• Ensure the installation environment provides adequate protection against dust and moisture.
• Confirm that the input voltage matches your local power supply specifications.

Usage recommendations

Always ensure that the transformer is properly grounded and that the connected load does not exceed the specified continuous power rating to maintain optimal performance and safety.