# FF CZF-BR-TRMS Phase Sequence and Phase Loss Monitoring Relay

**URL:** https://aio.lv/en/product--ff-czf-br-trms--12444437
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** CZF-BR-TRMS
**EAN:** 5902431673776
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 26.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-czf-br-trms--12444437

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The FF CZF-BR-TRMS is a professional monitoring relay designed to protect three-phase electrical equipment. It detects phase loss and incorrect phase sequence, ensuring safe operation of motors and industrial systems. Featuring TRMS measurement technology, it provides high accuracy in monitoring voltage parameters. This device is essential for preventing damage caused by power supply irregularities in industrial and commercial installations.

## Long description

The FF CZF-BR-TRMS is a professional monitoring relay engineered to safeguard three-phase electrical equipment from critical power supply faults. By continuously monitoring the phase sequence and detecting phase loss, this device prevents potential damage to motors, compressors, and industrial machinery. Utilizing advanced TRMS measurement technology, the relay ensures precise voltage monitoring even in environments with distorted waveforms, providing reliable protection for sensitive electrical installations.
Advantages
The primary benefit of this monitoring relay is its ability to provide high-accuracy protection through True RMS measurement, which allows for consistent performance regardless of harmonic distortion in the power grid. Its robust design ensures long-term operational stability in demanding industrial and commercial environments. By reacting quickly to phase irregularities, it significantly reduces the risk of equipment failure, downtime, and costly repairs, making it an essential component for maintaining the integrity of three-phase systems.
Suitable for
Protection of three-phase electric motors
Industrial automation and control systems
Commercial HVAC and refrigeration equipment
Monitoring power supply stability in manufacturing plants
This device may not be suitable for single-phase electrical systems or applications requiring specific voltage threshold monitoring beyond phase sequence and loss detection. It is also not intended for use in high-voltage distribution networks exceeding its rated operational parameters.
Key specifications
Monitoring function: Phase sequence and phase loss
Measurement technology: True RMS (TRMS)
System type: Three-phase
Operational reliability: High precision in distorted voltage conditions
To use the FF CZF-BR-TRMS, it must be installed by a qualified professional in accordance with local electrical regulations. The device is typically mounted on a standard DIN rail within an electrical distribution board. Ensure that all phase conductors are connected to the designated input terminals as specified in the wiring diagram. Once powered, the relay will automatically monitor the incoming supply and trigger the output contact if an incorrect sequence or phase loss is detected.
What to consider before purchase
Verify that your electrical system is a three-phase configuration
Ensure the installation environment meets the device's environmental ratings
Confirm that the relay's technical parameters match your specific equipment requirements
Usage recommendations: Regularly inspect the relay status indicators to ensure the system is operating within normal parameters. Periodic testing of the phase loss detection function is recommended to confirm that the protection circuit remains fully operational.

## FAQ

### How much does the FF CZF-BR-TRMS Phase Monitoring Relay cost, and is it available for purchase?

The price is 31.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 03.07.2026 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/12444437/68747690_large.webp