# Current Transformer FF TI-300/5 5VA Class 0.5 for Cable and Busbar Ø22

**URL:** https://aio.lv/en/product--ff-ti-3005-5va-kl05--12106308
**Data updated:** 2026-03-20 09:56 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** TI-300/5 5VA kl.0,5
**EAN:** 5908312594994
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-ti-3005-5va-kl05--12106308

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

FF TI-300/5 is a current transformer with 300/5 ratio and 5 VA burden, accuracy class 0.5. Designed for through-core mounting on cable or busbar up to 22 mm diameter, it provides precise current measurement for metering and protection circuits. Suitable for integration with panel meters, relays and energy monitoring systems in commercial and industrial installations.

## Long description

FF TI-300/5 is a through-core current transformer with a 300/5 ratio and 5 VA burden, designed for mounting on cables or busbars up to 22 mm in diameter. It delivers accurate secondary current proportional to the primary conductor for metering and protection circuits, compatible with panel meters, protection relays and energy monitoring systems in commercial and industrial electrical installations. The unit’s class 0.5 accuracy ensures reliable measurements for billing and monitoring applications where moderate precision is required.
Advantages
The transformer provides stable and repeatable transformation of primary current to a standardized secondary current with low burden, enabling precise readings by connected instruments. Its through-core format allows quick installation without disconnecting conductors, and the compact construction supports space-saving panel and switchboard layouts. Accuracy class 0.5 and a rated burden of 5 VA balance measurement precision with typical instrument input requirements.
Suitable for
Current metering in commercial and light-industrial electrical panels
Integration with panel meters and energy monitoring systems
Connection to protection relays for basic overcurrent detection
Retrofit measurement on existing cable or busbar up to 22 mm diameter
Key specifications
Transformation ratio: 300/5 A
Accuracy class: 0.5
Rated burden: 5 VA
Mounting style: through-core (split or solid through-hole for conductor)
Maximum conductor / busbar diameter: 22 mm
Secondary termination: insulated terminals suitable for connection to meters and relays
Intended application: metering and protection circuits
How to use
Pass the primary conductor or busbar through the transformer aperture and secure the unit as required by the mounting design. Connect the secondary terminals to the measuring device or protection relay, observing correct polarity and ensuring secure terminal connections. Verify that the connected instrument input impedance matches the transformer rated burden (5 VA) and that secondary circuits are never open-circuited under load. Perform commissioning checks with a known reference or clamp meter to confirm correct scaling and polarity before putting the system into regular operation.
Usage recommendations
Use the transformer for circuits within its rated current range and do not exceed the specified conductor diameter. Ensure secondary circuits are shorted or connected when primary current is present, and periodically inspect terminal connections and insulation for signs of wear or damage to maintain measurement accuracy and safe operation.

## FAQ

### How much does the FF TI-300/5 Current Transformer 300/5 Class 0.5 cost, and is it available for purchase?

The price is 23.99 € (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 16.07.2026 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

https://aio.lv/img/cache/product/12106308/67642864_large.webp