# F&F Czf-333 Phase Loss Sensor – Without Neutral Cable

The **F&F Czf-333 Phase Loss Sensor** is a crucial device for protecting electrical systems from phase loss, operating effectively without a neutral cable. Designed for industrial and commercial applications, this sensor, also known as the **F&F Czujnik Zaniku Fazy bez Przewodu Neutralnego**, ensures the reliable operation of machinery and equipment by detecting voltage irregularities. It's a key component for maintaining the safety and efficiency of your electrical infrastructure.

  

This sensor is engineered to handle up to 10 A at 250Vac with a nominal voltage of 3X400V at 50Hz, incorporating a voltage asymmetry program for enhanced detection capabilities. Its compact design and lightweight build (210 grams) make installation straightforward in various settings. This device provides accurate and timely detection of phase loss, preventing potential damage and downtime. It's the ideal choice for those looking to improve electrical system reliability.

  

**Key Features:**

-   **Phase Loss Detection:** Reliably identifies phase loss conditions.
-   **Neutral Cable Free:** Operates without the need for a neutral cable.
-   **Voltage Asymmetry Program:** Detects voltage irregularities.
-   **Compact Design:** Easy to install in diverse applications.
-   **High Performance:** Ensures the smooth operation of electrical systems.

  

**Specifications:**

-   Nominal Voltage: 3X400V at 50Hz
-   Current Rating: Up to 10 A at 250Vac
-   Weight: 210 grams

  

The **F&F Czf-333** stands as a dependable solution for phase loss detection, backed by the reputation of **F&F**. This sensor is designed to enhance the safety and performance of your electrical systems. Integrate the **Czf-333** into your industrial or automation setups for optimal results. For inquiries, contact us at [info@ramautomations.com](mailto:info@ramautomations.com).

## Details

- **Price:** 999.0 USD
- **Vendor:** F&F
- **Type:** Industrial Automation > Sensors > Phase Loss Sensors
- **Tags:** Czf-333, electrical safety, F&F, industrial automation, phase failure detection, phase loss sensor, voltage monitoring

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| New | 999.00 USD | In stock |

## Images

- F&F Czf-333 Phase Loss Sensor – Without Neutral Cable-Ram Automations

---

> Source: [Ram Automations](https://ramautomations.com/products/f-f-czf-333-phase-loss-sensor)
> Updated: 2026-09-19