# FF LE-03M-CT Three-Phase Electricity Meter with Programmable Transformer Ratio and RS-485 MODBUS Interface

**URL:** https://aio.lv/en/product--ff-le-03m-ct--12445920
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** LE-03M-CT
**EAN:** 5908312595786
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 112.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 93.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-le-03m-ct--12445920

## 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 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The FF LE-03M-CT is a high-precision class 1 three-phase electricity meter designed for monitoring energy consumption. It features a programmable transformer ratio, an integrated LCD display for clear data reading, and an RS-485 MODBUS communication port for remote data integration. This device is ideal for industrial and commercial energy management systems requiring accurate measurement and digital connectivity.

## Long description

The FF LE-03M-CT is a high-precision class 1 three-phase electricity meter engineered for accurate energy consumption monitoring in industrial and commercial environments. This device supports a programmable transformer ratio, allowing for flexible integration into various electrical systems. Equipped with an integrated LCD display, it provides clear and immediate access to energy data, while the built-in RS-485 MODBUS communication port enables seamless remote data transmission and integration into building management systems.
Advantages
This electricity meter stands out due to its high measurement accuracy, meeting class 1 standards, which ensures reliable data for billing and energy auditing. The programmable transformer ratio feature offers significant versatility, making it compatible with a wide range of current transformers. Furthermore, the inclusion of an RS-485 interface allows for efficient digital monitoring, reducing the need for manual readings and facilitating real-time energy management through centralized software.
Suitable for
Industrial energy management systems
Commercial building energy monitoring
Sub-metering in multi-tenant facilities
Integration with smart building automation systems
Energy auditing and efficiency analysis
When it may not be suitable
This device is not intended for direct measurement of high-current circuits without the use of appropriate external current transformers. It is also not suitable for residential applications where a simple, non-communicating meter is sufficient, as the advanced features like MODBUS connectivity may be unnecessary for basic household needs.
Key specifications
Measurement accuracy: Class 1
Phase type: Three-phase
Communication interface: RS-485 MODBUS
Display: Integrated LCD
Configuration: Programmable transformer ratio
How to use
The device should be installed on a standard DIN rail within an electrical distribution board by a qualified professional. Once mounted, the current transformers must be connected according to the wiring diagram provided in the technical documentation. After physical installation, the transformer ratio must be programmed via the device interface or the MODBUS protocol to ensure accurate readings. Once configured, the meter will automatically begin measuring energy consumption, which can then be monitored locally on the LCD or remotely via the RS-485 connection.
What to consider before purchase
Compatibility with existing current transformers
Availability of an RS-485 network infrastructure
Space requirements on the DIN rail
Technical expertise required for configuration
Usage recommendations
Ensure that all electrical connections are tightened to the specified torque and that the system is de-energized during installation to prevent injury or equipment damage. Regularly verify the integrity of the communication link to maintain consistent data flow.

## FAQ

### How much does the FF LE-03M-CT Three-Phase Electricity Meter cost, and is it available for purchase?

The price is 112.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 36 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, Installment. All transactions are 100% secure and encrypted.

### Can FF LE-03M-CT Three-Phase Electricity Meter 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/12445920/68749125_large.webp