# F&F CZF-310-TRMS Microprocessor Phase Loss and Asymmetry Monitor for DIN Rail

**URL:** https://aio.lv/en/product--ff-czf-310-trms--12451428
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** CZF-310-TRMS
**EAN:** 5902431673691
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 30.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-czf-310-trms--12451428

## 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 F&F CZF-310-TRMS is a microprocessor-based phase loss and asymmetry monitor designed for three-phase electrical systems. Featuring True RMS measurement, it ensures precise detection of voltage irregularities. It is intended for DIN rail mounting, providing reliable protection for industrial and residential equipment against phase failure or voltage imbalance, thereby preventing potential damage to connected electrical devices.

## Long description

The F&F CZF-310-TRMS is a high-precision microprocessor-based phase loss and asymmetry monitor engineered for three-phase electrical networks. By utilizing True RMS measurement technology, this device provides accurate monitoring of voltage parameters, ensuring that any deviations from the norm are detected immediately. It is designed for seamless installation on standard DIN rails, making it an essential component for protecting sensitive industrial and residential electrical equipment from the risks associated with phase failure or voltage imbalance.
Advantages
The primary benefit of this monitor is its ability to perform True RMS measurements, which allows for reliable operation even in environments with distorted voltage waveforms. The microprocessor-based design ensures high stability and rapid response times when a fault is detected. Its compact DIN rail mounting design facilitates easy integration into existing electrical cabinets, while the robust construction provides long-term operational reliability and protection for connected hardware.
Suitable for
Industrial motor protection systems
Residential three-phase power distribution boards
HVAC control panels
Automated manufacturing equipment
Protection of sensitive electronic devices against phase loss
When it may not be suitable
This device is specifically designed for three-phase systems and is not suitable for single-phase electrical installations. It should not be used in environments where the voltage levels exceed the specified operating range of the monitor.
Key specifications
Measurement type: True RMS
Mounting: DIN rail
System compatibility: Three-phase
Functionality: Phase loss and asymmetry detection
How to use
The device should be installed by a qualified professional in a standard electrical distribution board on a 35 mm DIN rail. Connect the three phases to the designated input terminals according to the wiring diagram provided with the unit. Once powered, the microprocessor will continuously monitor the voltage levels. If a phase loss or an asymmetry exceeding the set threshold occurs, the internal relay will trigger to disconnect the load, thereby preventing potential damage.
What to consider before purchase
Verify that your electrical system is a three-phase configuration
Ensure the DIN rail space is available in your distribution cabinet
Check that the voltage parameters of your network align with the device specifications
Usage recommendations
Regularly inspect the installation to ensure all terminal connections remain tight and free from oxidation to maintain the accuracy of the True RMS measurements.

## FAQ

### How much does the F&F CZF-310-TRMS Phase Loss and Asymmetry Monitor cost, and is it available for purchase?

The price is 36.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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/12451428/68754120_large.webp