# FF DMA-3 20A TrueRMS 3-Phase Digital Modular Ammeter 0-20A 0.5% Accuracy

**URL:** https://aio.lv/en/product--ff-dma-3-20a-truerms--12445910
**Data updated:** 2026-05-18 02:48 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** DMA-3 20A TrueRMS
**EAN:** 5908312592235
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 125.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 104.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-dma-3-20a-truerms--12445910

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The FF DMA-3 20A TrueRMS is a digital 3-phase modular ammeter designed for precise current measurement in electrical systems. With a measurement range of 0-20A and an accuracy of 0.5%, it provides reliable TrueRMS readings for industrial and residential monitoring. Its modular design allows for easy installation on DIN rails, ensuring efficient integration into distribution boards for real-time current tracking.

## Long description

The FF DMA-3 20A TrueRMS is a high-precision digital 3-phase modular ammeter engineered for accurate current monitoring in electrical distribution systems. This device utilizes TrueRMS technology to ensure reliable measurements even in circuits with non-sinusoidal waveforms, making it an essential tool for both industrial and residential electrical panels. Designed for seamless integration, its compact modular form factor allows for quick and secure mounting on standard DIN rails.
Advantages
The primary benefit of this ammeter is its high measurement accuracy of 0.5%, which provides users with precise data for effective energy management and system diagnostics. By utilizing TrueRMS measurement, the device maintains consistency and reliability across various load types, preventing errors common in standard averaging meters. Its modular design simplifies the installation process within existing distribution boards, saving time and space while providing a clear, real-time visual representation of current consumption across all three phases.
Suitable for
Monitoring current in 3-phase industrial electrical systems
Residential energy consumption tracking
Diagnostic checks in distribution boards
Real-time load balancing verification
This device may not be suitable for applications requiring current measurements exceeding 20A, as it is specifically calibrated for the 0-20A range. It is also not intended for use in environments with extreme moisture or high levels of conductive dust without appropriate protective enclosure housing.
Key specifications
Measurement range: 0-20A
Accuracy: 0.5%
Measurement type: TrueRMS
Phase compatibility: 3-phase
Mounting: DIN rail
To use the FF DMA-3 20A TrueRMS, ensure the device is mounted securely on a standard DIN rail within a distribution board. Connect the current inputs according to the wiring diagram provided by the manufacturer, ensuring that the connections are tight and secure to prevent resistance issues. Once powered, the digital display will provide real-time readings of the current flowing through each phase, allowing for immediate monitoring of the electrical system status.
What to consider before purchase
Verify that your system current does not exceed the 20A limit
Ensure your distribution board has sufficient DIN rail space
Confirm compatibility with your specific 3-phase electrical configuration
Usage recommendations
For optimal performance and safety, ensure that the installation is performed by a qualified electrician in accordance with local electrical regulations and that the device is protected by appropriate circuit breakers.

## FAQ

### How much does the FF DMA-3 20A TrueRMS 3-Phase Digital Ammeter cost, and is it available for purchase?

The price is 125.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 13.07.2026 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 DMA-3 20A TrueRMS 3-Phase Digital Ammeter 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

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