# FF TI-400-5-02S Current Transformer 400/5A, Accuracy Class 0.2s, Aperture 32mm

**URL:** https://aio.lv/en/product--ff-ti-400-5-02s--12447134
**Data updated:** 2026-05-18 02:43 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** TI-400-5-02S
**EAN:** 5902431676661
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 56.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 47.10 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-ti-400-5-02s--12447134

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The FF TI-400-5-02S is a high-precision current transformer designed for electrical measurement systems. It features a 400/5A transformation ratio and meets accuracy class 0.2s standards, ensuring reliable data for energy monitoring. With a 32mm aperture, it is suitable for various industrial and commercial cable installations, providing precise current conversion for meters and protection relays.

## Long description

The FF TI-400-5-02S is a high-precision current transformer engineered for accurate electrical measurement in industrial and commercial power systems. This device is designed to convert high primary currents into a manageable secondary current of 5A, maintaining a precise 400/5A transformation ratio. With its specialized accuracy class 0.2s, it provides reliable data for energy monitoring, billing, and protection applications where high precision is critical.
Advantages
The primary advantage of this current transformer is its high accuracy class, which ensures minimal measurement error even at low current levels. Its robust construction allows for consistent performance in demanding electrical environments. The 32mm aperture provides sufficient space for various cable sizes, simplifying the installation process in existing switchgear or control panels. By delivering precise signals to meters and relays, it supports efficient energy management and enhances the reliability of electrical protection systems.
Suitable for
Energy monitoring and sub-metering systems
Industrial power distribution panels
Protection relay circuits
Commercial building electrical infrastructure
When it may not be suitable
This transformer is not intended for use in high-voltage transmission lines or environments exceeding its specified insulation levels. It is also not suitable for applications requiring a transformation ratio other than 400/5A or for installations where the primary conductor diameter exceeds the 32mm aperture limit.
Key specifications
Transformation ratio: 400/5A
Accuracy class: 0.2s
Aperture diameter: 32mm
Application: Electrical measurement and protection
How to use
Installation should be performed by a qualified electrician in accordance with local electrical regulations. The primary conductor must be passed through the 32mm aperture of the transformer. Ensure that the polarity markings are observed correctly when connecting the secondary terminals to the measuring instrument or protection relay. The secondary circuit must be properly terminated to prevent high-voltage buildup, which can occur if the secondary side is left open while the primary is energized.
What to consider before purchase
Verify that the 400/5A ratio matches your specific load requirements.
Ensure the primary cable diameter fits within the 32mm aperture.
Confirm that the 0.2s accuracy class meets the standards required for your metering or protection application.
Usage recommendations
Always ensure the secondary circuit is connected to a load or short-circuited before energizing the primary conductor to prevent damage to the transformer and ensure operator safety.

## FAQ

### How much does the FF TI-400-5-02S Current Transformer cost, and is it available for purchase?

The price is 56.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 14.07.2026 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. All transactions are 100% secure and encrypted.

### 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 FF 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 FF 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. More information about warranty service: https://aio.lv/en/warranty

## Image

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