# Current Transformer FF TI-40-5 40/5 A class 0.5 1 VA 87.5x104 mm

**URL:** https://aio.lv/en/product--ff-ti-40-5--12113575
**Data updated:** 2026-03-20 10:05 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** TI-40-5
**EAN:** 5908312599685
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 19.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-ti-40-5--12113575

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

FF TI-40-5 is a current transformer with a 40/5 A ratio, accuracy class 0.5 and rated burden 1 VA. Designed for measuring and monitoring current in electrical installations, it features physical dimensions of 87.5x104 mm and a compact footprint for panel or switchgear mounting. Suitable for metering, protection circuits and energy monitoring in industrial and commercial systems.

## Long description

FF TI-40-5 is a precision current transformer with a 40/5 A ratio, accuracy class 0.5 and a rated burden of 1 VA. The device is intended for measuring and monitoring alternating current in electrical installations and is built for compact panel or switchgear mounting with overall dimensions of 87.5x104 mm. It is suitable for integration into metering circuits, protection schemes and energy monitoring systems in industrial and commercial environments.
Advantages
The transformer delivers class 0.5 accuracy for reliable measurement results and low measurement error under rated conditions. With a rated burden of 1 VA the unit minimises loading on connected measuring instruments, helping to maintain accuracy. The compact physical size allows installation in confined panel spaces and standard switchgear arrangements. The robust construction and clear specification of ratio and burden simplify selection and commissioning in metering and protection applications.
Suitable for
Primary and secondary metering in commercial electrical panels
Current monitoring for energy management systems
Input for protection relays and control equipment
Industrial switchgear and distribution boards
Key specifications
Nominal ratio: 40/5 A
Accuracy class: 0.5
Rated burden: 1 VA
Applicable current type: alternating current (AC)
Overall dimensions: 87.5 x 104 mm (footprint for panel mounting)
Mounting: panel or switchgear installation
How to use
Install the transformer in the panel or switchgear at a location that provides secure mechanical support and access to the primary conductor. Ensure the primary conductor passes through the transformer window and that the secondary terminals are wired to the measuring device or protection relay following polarity markings. Verify the rated ratio and burden match the connected instruments, and tighten terminal connections to the specified torque. After installation, perform an instrument zero check and compare readings against a reference meter to confirm correct operation.
Usage recommendations
Use the transformer within its specified current range and burden rating to maintain class 0.5 accuracy. Avoid exposing the unit to excessive mechanical stress, moisture or corrosive environments. For protection circuits, confirm relay settings and CT polarity before energising. When replacing or upgrading measuring devices, re-evaluate burden and instrument input impedance to preserve measurement performance.

## FAQ

### How much does the Current Transformer FF TI-40-5 40/5 A class 0.5 cost, and is it available for purchase?

The price is 23.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 03.07.2026 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/12113575/67648999_large.webp