Eaton STI0,4 Isolation Transformer 400V/230V

Name: Eaton STI0,4 Isolation Transformer 400V 046640
Brand: EATON
SKU: 12464312
Price: 235.99 EUR
Availability: InStock

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Eaton STI0,4 Isolation Transformer 400V to 230V

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Short description

The Eaton STI0,4 is a single-phase isolation transformer designed for reliable voltage conversion. It features an AC input voltage of 400 V and an AC output voltage of 230 V, operating at a frequency of 50-60 Hz. This transformer is engineered for industrial and commercial applications requiring galvanic isolation and stable power supply, ensuring safety and performance in various electrical systems.

Available for order: 2 pcs.

Warranty: 2 Years

SKU: 12464312

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Product information

Description

The Eaton STI0,4 is a high-quality single-phase isolation transformer engineered for precise voltage conversion from 400V to 230V. Designed for industrial and commercial environments, this unit provides essential galvanic isolation, which enhances safety by decoupling the output circuit from the input power source. Its robust construction and adherence to international standards ensure reliable performance and stable power delivery for sensitive electrical equipment.

Advantages

This transformer offers significant benefits in terms of operational safety and electrical stability. By providing galvanic isolation, it effectively protects connected devices from voltage spikes and interference originating from the main power grid. The unit is built to withstand demanding conditions, featuring a durable design that supports both continuous operation and short-time power requirements. Its compact dimensions allow for efficient integration into control panels and electrical cabinets where space is limited.

Suitable for

Industrial control systems
Commercial power distribution
Galvanic isolation of sensitive electronic equipment
Voltage conversion in machinery

When it may not be suitable

This transformer is not intended for outdoor use without an appropriate protective enclosure, as it has an IP00 degree of protection. It is also not suitable for applications requiring three-phase power conversion or for loads exceeding its rated power capacity of 0.4 kVA.

Key specifications

Rated power: 0.4 kVA
Short-time rating: 1.1 kVA
Input voltage: 400V (+/- 5%)
Output voltage: 230V
Frequency: 50-60 Hz
Degree of protection: IP00
Dimensions: 121 mm x 100 mm x 131 mm

How to use

Installation should be performed by a qualified electrician in accordance with local electrical regulations and the provided technical documentation. The transformer must be mounted within a suitable protective housing or electrical cabinet to ensure safety, given its IP00 rating. Connect the 400V input supply to the primary terminals and the 230V load to the secondary terminals, ensuring that all connections are secure and properly tightened. Verify that the input voltage is within the specified tolerance range before energizing the system.

What to consider before purchase

Ensure the total power consumption of your connected devices does not exceed the 0.4 kVA continuous rating.
Confirm that the installation environment provides the necessary protection against dust and moisture.
Check that the available mounting space accommodates the physical dimensions of the unit.

Usage recommendations

Always verify that the input voltage matches the transformer's rated input before connection. Ensure adequate ventilation around the unit to prevent overheating during operation.

Specifications

Weight:: 5.2 kg

All features

Load capacity:: 400 VA
Short circuit protection:: No
International Protection (IP) code: Device protection rating against dust and water according to the international IP standard.: IP00
AC output voltage:: 230

Power

AC input frequency:: 50 - 60
AC input voltage:: 400

Certificates

Certification:: UL 506; UL5085-1; UL 5085-2; CSA-C22.2 No. 66; CSA-C22.2 No. 66.1-06; CSA-C22.2 No. 66.2-06; IEC/EN 61558-2-2; CE

Weight & dimensions

Weight:: 5.2 kg
Height:: 131 mm
Width:: 121 mm
Depth:: 100 mm

Operational conditions

Operating temperature (T-T):: -25 - 40

Other features

Housing colour:: Metallic

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Instructions

mmo_70745504_1564084407_7756_19090.pdf

Description

Instructions

mmo_70745504_1564084407_7756_19090.pdf

Machine translation. Load original

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Customer questions

FAQ

How much does the Eaton STI0,4 Isolation Transformer 400V/230V cost, and is it available for purchase?

The price is 235.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Eaton STI0,4 Isolation Transformer 400V/230V be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Eaton STI0,4 Isolation Transformer 400V/230V online, and the application process is as simple as possible:

Select the product on the website and add it to your cart;
When placing your order, choose the payment method “Installments”;
Fill in the required details for the lending partner;
Receive a decision within a few minutes.

For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All EATON products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized EATON service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for Eaton STI0,4 Isolation Transformer 400V/230V?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

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