# FF TOM-100-5 Miniature Current Transformer, 100-5A, Split Core

**URL:** https://aio.lv/en/product--ff-tom-100-5--12465147
**Data updated:** 2026-05-18 09:27 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** TOM-100-5
**EAN:** 5902431674070
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 42.14 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-tom-100-5--12465147

## 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 TOM-100-5 is a miniature current transformer designed for precise current measurement. Featuring a split-core design, it allows for easy installation on existing cables without disconnecting the circuit. With a transformation ratio of 100-5A, this device is ideal for energy monitoring, power management systems, and industrial automation applications requiring reliable current sensing in compact spaces.

## Long description

The FF TOM-100-5 is a high-precision miniature current transformer engineered for accurate current measurement in diverse electrical environments. Featuring a practical split-core design, this device enables seamless installation onto existing cables without the need to disconnect or interrupt the primary circuit, significantly reducing downtime and labor during setup. With a transformation ratio of 100-5A, it provides reliable performance for monitoring electrical loads in compact spaces where traditional solid-core transformers might be difficult to implement.
Advantages
The primary benefit of the FF TOM-100-5 lies in its split-core architecture, which offers unparalleled convenience for retrofitting existing installations. Its compact size allows for integration into crowded electrical panels or tight enclosures where space is at a premium. By providing a stable 5A secondary output, it ensures compatibility with a wide range of standard measuring instruments and power management systems, delivering consistent and accurate data for energy monitoring applications.
Suitable for
Energy monitoring and sub-metering systems
Industrial automation and control processes
Power management and distribution monitoring
Retrofitting existing electrical installations
When it may not be suitable
This transformer is not intended for use in high-voltage power transmission lines or environments exceeding its specified insulation ratings. It is also not suitable for applications requiring direct measurement of DC currents, as it is designed exclusively for AC current sensing.
Key specifications
Transformation ratio: 100-5A
Design: Split-core for non-invasive installation
Application: AC current measurement
Compact form factor for space-constrained environments
How to use
To install the FF TOM-100-5, simply open the split-core housing by releasing the locking mechanism. Place the transformer around the primary conductor that needs to be monitored and snap the core halves back together until they are securely closed. Ensure the orientation is correct according to the markings on the device. Connect the secondary output terminals to your measuring instrument or energy meter using appropriate wiring. Once connected, the device will begin providing a proportional current signal for your monitoring system.
What to consider before purchase
Verify that the primary current does not exceed the 100A rating
Ensure the secondary input of your measuring device is compatible with a 5A signal
Check the physical dimensions to confirm it fits within your specific enclosure
Confirm that the cable diameter of the primary conductor fits within the transformer aperture
Usage recommendations
For optimal accuracy, ensure the core faces are clean and free of debris before closing the transformer. Always verify that the secondary circuit is properly terminated before energizing the primary conductor to prevent high-voltage buildup.

## FAQ

### How much does the FF TOM-100-5 Miniature Current Transformer cost, and is it available for purchase?

The price is 50.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 237 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. 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/12465147/68766720_large.webp