# FF TO-300-5 Current Transformer 300/5A

**URL:** https://aio.lv/en/product--ff-to-300-5--12459263
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** TO-300-5
**EAN:** 5908312590873
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-to-300-5--12459263

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The FF TO-300-5 is a high-precision current transformer designed for electrical measurement applications. With a transformation ratio of 300/5A, it is engineered to safely step down high currents for monitoring and metering systems. This robust component ensures accurate signal transmission for energy management and industrial automation, providing reliable performance in various electrical installations.

## Long description

The FF TO-300-5 is a high-precision current transformer engineered for accurate electrical measurement and monitoring applications. With a transformation ratio of 300/5A, this device is designed to safely step down high primary currents to a manageable secondary level, making it an essential component for energy management systems, industrial automation, and electrical metering installations. Its robust construction ensures reliable signal transmission and consistent performance in demanding electrical environments.
Advantages
This current transformer offers exceptional measurement accuracy, which is critical for precise energy monitoring and billing applications. The device is built to withstand standard industrial conditions, ensuring long-term stability and minimal signal distortion. By converting high currents into a lower, safer range, it protects sensitive measuring equipment and control systems from electrical overloads, thereby enhancing the overall safety and efficiency of the electrical infrastructure.
Suitable for
Energy management and monitoring systems
Industrial automation and control panels
Electrical metering and sub-metering applications
Current measurement in power distribution networks
When it may not be suitable
This device is not intended for use in high-voltage transmission lines or circuits exceeding its rated insulation levels. It is also not suitable for applications requiring direct current (DC) measurement, as it is specifically designed for alternating current (AC) systems.
Key specifications
Transformation ratio: 300/5A
Primary current: 300A
Secondary current: 5A
Application: Alternating current (AC) measurement
How to use
The transformer should be installed by a qualified electrician in accordance with local electrical regulations. The primary conductor carrying the current to be measured must be passed through the aperture of the transformer. The secondary terminals should then be connected to the measuring device or meter using appropriate wiring. Ensure that all connections are secure and that the polarity is observed to maintain measurement accuracy.
What to consider before purchase
Verify that the primary current of your circuit does not exceed 300A
Ensure compatibility with your existing metering or monitoring equipment
Check the physical dimensions to ensure it fits within your electrical enclosure
Usage recommendations
Always ensure the secondary circuit is connected to a load or shorted before energizing the primary circuit to prevent dangerous voltage build-up. Regularly inspect connections for signs of oxidation or looseness to maintain measurement integrity.

## FAQ

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

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 06.07.2026 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 FF TO-300-5 Current Transformer 300/5A be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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/12459263/68761346_large.webp