# Phase loss sensor FF CZF-BT – NO/NC contacts, model CZF-BT

**URL:** https://aio.lv/en/product--ff-czf-bt--12064944
**Data updated:** 2026-03-12 21:44 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** CZF-BT
**EAN:** 5908312592471
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 23.96 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-czf-bt--12064944

## 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

FF CZF-BT is a phase loss sensor (phase-failure detector) with configurable NO/NC contacts for monitoring three-phase supply. Designed to detect phase loss or imbalance and switch output contacts accordingly, it is used in industrial and commercial electrical panels to protect motors, pumps and control systems. Suitable for integration into control circuits and alarm systems.

## Long description

FF CZF-BT is a phase loss sensor designed to monitor three-phase power supply and detect phase loss or imbalance. The device provides configurable normally open (NO) or normally closed (NC) relay contacts that switch when a phase fault is detected, enabling integration with control circuits, alarm systems, and protective relays. Intended for industrial and commercial electrical panels, the sensor helps prevent damage to motors, pumps and other three-phase equipment by signaling abnormal supply conditions.
Advantages
The phase loss sensor offers configurable NO/NC contact operation for flexible integration into existing control schemes and alarm circuits. Its compact design is suitable for mounting in control cabinets and switchgear, allowing straightforward connection to three-phase inputs. The device reacts quickly to phase imbalance and loss, providing reliable switching of outputs and reducing risk of equipment damage due to improper supply conditions.
Suitable for
Monitoring three-phase motors and pumps in industrial installations
Integration into machine control panels and automation systems
Protection of HVAC, refrigeration and process equipment
Alarm signaling in electrical distribution and switchboards
Key specifications
Function: phase loss/phase-failure detection for three-phase supply
Output: configurable normally open (NO) or normally closed (NC) relay contacts
Measurement: detects phase loss and phase imbalance conditions
Mounting: panel/switchgear mounting suitable for control cabinets
Connection: three-phase input terminals for direct monitoring
How to use
Install the sensor in an accessible location within the control cabinet and connect the three-phase supply to the designated input terminals following applicable wiring standards. Configure the relay contact mode to NO or NC according to the control circuit requirements. Verify correct wiring and perform an operational test by simulating a phase loss or imbalance to confirm the output contacts switch as expected. Regularly inspect connections and test functionality as part of preventive maintenance.
Usage recommendations
Use the sensor in accordance with local electrical codes and the equipment manufacturer’s instructions. Ensure proper sizing and protective devices upstream of the sensor, and schedule periodic functional tests to ensure continued reliable detection of phase loss or imbalance.

## FAQ

### How much does the Phase loss sensor FF CZF-BT cost, and is it available for purchase?

The price is 28.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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/12064944/67550264_large.webp