# FF LE-03M Three-Phase Electricity Meter with Programmable Transformer Ratio and RS-485 MODBUS LCD Class 1

**URL:** https://aio.lv/en/product--ff-le-03m--12450394
**Data updated:** 2026-05-18 02:47 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** LE-03M
**EAN:** 5908312594406
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 107.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 89.25 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-le-03m--12450394

## 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 LE-03M is a professional three-phase electricity meter designed for precise energy measurement in industrial and commercial applications. It features a programmable transformer ratio, an integrated RS-485 interface with MODBUS protocol for remote data monitoring, and a clear LCD display. Built to class 1 accuracy standards, this meter ensures reliable performance for energy management and billing systems.

## Long description

The FF LE-03M is a professional 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 RS-485 interface and MODBUS protocol support, it enables seamless remote data acquisition and integration into building management systems. The integrated LCD display provides clear, real-time visibility of energy parameters, ensuring precise tracking for billing and energy efficiency analysis.
Advantages
The primary benefit of the FF LE-03M is its high measurement precision, meeting Class 1 accuracy standards for reliable performance. The inclusion of a programmable transformer ratio makes it highly adaptable to different load requirements, while the RS-485 MODBUS interface facilitates efficient remote monitoring and system integration. Its robust design ensures long-term stability in demanding electrical installations, providing a comprehensive solution for professional energy management.
Suitable for
Industrial energy monitoring and sub-metering
Commercial building energy management systems
Integration with smart grid and automation controllers
Precise electricity billing and cost allocation
This meter may not be suitable for residential applications where a simple, non-programmable direct-connection meter is sufficient, or in environments where the specific MODBUS communication protocol is not supported by the existing infrastructure. It is also not intended for use in high-voltage transmission lines without appropriate external transformation equipment.
Key specifications
Three-phase power measurement
Class 1 accuracy standard
Programmable transformer ratio
RS-485 communication interface
MODBUS RTU protocol support
Integrated LCD display
Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is mounted on a standard DIN rail. Once installed, the transformer ratio must be configured via the interface to match the specific current transformers used in the installation. Data can then be polled continuously via the MODBUS protocol to track energy consumption metrics.
What to consider before purchase
Ensure compatibility with your existing RS-485 MODBUS network
Verify that the current transformer requirements match the programmable range
Confirm the installation space on the DIN rail
Check if the local regulations require specific certification for billing meters
Usage recommendations
Regularly verify the communication link between the meter and the central monitoring system to ensure continuous data logging. Periodically inspect the terminal connections to maintain optimal electrical contact and prevent overheating.

## FAQ

### How much does the FF LE-03M Three-Phase Electricity Meter with RS-485 MODBUS cost, and is it available for purchase?

The price is 107.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 67 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 LE-03M Three-Phase Electricity Meter with RS-485 MODBUS 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/12450394/68753157_large.webp