# F&F CZF-334 Phase Loss Monitor with Adjustable Asymmetry Threshold and 2Z/2R Separated Contacts

**URL:** https://aio.lv/en/product--ff-czf-334--12472435
**Data updated:** 2026-05-18 09:44 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** CZF-334
**EAN:** 5902431672540
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 75.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 62.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-czf-334--12472435

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The F&F CZF-334 is a True RMS phase loss monitor designed to protect three-phase electrical equipment. It features an adjustable asymmetry threshold and independent 2Z/2R separated contacts for reliable monitoring. This device detects phase loss and voltage asymmetry, ensuring safe operation of motors and industrial systems. Its precise True RMS measurement provides accurate performance in various electrical installations.

## Long description

The F&F CZF-334 is a professional True RMS phase loss monitor engineered to provide comprehensive protection for three-phase electrical equipment. By continuously monitoring the supply voltage, this device detects critical faults such as phase loss or voltage asymmetry, which could otherwise lead to severe damage in industrial motors, pumps, and complex electrical installations. The inclusion of independent 2Z/2R separated contacts allows for versatile integration into control circuits, ensuring that the system can respond immediately to power irregularities.
Advantages
This monitor utilizes advanced True RMS measurement technology, which ensures high precision even when the supply voltage is distorted or contains harmonics. The adjustable asymmetry threshold provides flexibility, allowing users to calibrate the sensitivity of the device according to the specific requirements of the connected equipment. The robust design and separated contact configuration enhance operational safety and reliability, making it an essential component for maintaining the longevity of sensitive three-phase machinery.
Suitable for
Industrial motor protection systems
Three-phase pump and compressor control
HVAC electrical installations
Automation and power distribution panels
Critical infrastructure monitoring
This device may not be suitable for single-phase electrical systems or applications where the voltage supply is inherently unstable to the point of constant tripping. It is also not intended for use in environments exceeding the specified operating temperature or humidity ranges defined for industrial electronic components.
Key specifications
Monitoring type: True RMS phase loss and asymmetry
Contact configuration: 2Z/2R separated contacts
Adjustable asymmetry threshold: Yes
System compatibility: Three-phase networks
To use the F&F CZF-334, it must be installed by a qualified electrician in a standard electrical distribution board. The device should be wired in series with the control circuit of the equipment being protected. Once installed, the asymmetry threshold should be adjusted using the integrated dial to match the tolerance levels of the connected motor or device. After power is applied, the monitor will continuously track the phase status and trigger the contacts if a fault is detected.
What to consider before purchase
Verify that your electrical network is a three-phase system
Check the voltage requirements of your equipment
Ensure there is sufficient space in the distribution cabinet for mounting
Confirm that the contact rating is compatible with your control circuit
For optimal performance, regularly inspect the wiring connections to ensure they remain tight and free from oxidation. It is recommended to test the device functionality periodically during scheduled maintenance to ensure the protection circuit remains active and responsive.

## FAQ

### How much does the F&F CZF-334 Phase Loss Monitor with Adjustable Asymmetry cost, and is it available for purchase?

The price is 75.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 22 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 16.07.2026 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 F&F CZF-334 Phase Loss Monitor with Adjustable Asymmetry 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/12472435/68791818_large.webp