# Three-phase motor phase loss protector, submersible pump protection switch, 40A/100A fan motor phase loss protector.

# Protect Your Equipment From Phase Loss Damage

A three-phase motor phase loss protector helps prevent damage caused by sudden phase interruption in three-phase systems.

Phase loss can cause overheating, unstable performance, and costly downtime for critical equipment.

It can also shorten the service life of submersible pumps, fans, and other motor-driven systems.

Our protector is designed to safeguard your equipment and support smoother daily operation.

It is built for submersible pumps and fan applications where reliable phase monitoring is essential.

## Why Choose a Three-Phase Motor Phase Loss Protector

This device detects phase loss and helps isolate the issue before serious motor damage occurs.

It supports safer operation and helps reduce interruptions in demanding working environments.

-   **Dependable Phase Loss Protection:** Automatically detects and isolates phase loss to prevent motor damage.
-   **Wide Current Range Compatibility:** Available for both 40A and 100A motors, fitting various application needs.
-   **Easy Integration:** Designed for seamless use with existing installations, perfect for submersible pumps and fan motors.

The available options make it easier to match different system needs without changing your setup.

For users comparing models, the ww marking can help distinguish certain product references.

This protection switch is suitable for applications where stable motor performance matters every day.

Trusted by many professionals, it helps reduce failures and supports longer equipment life.

Choose this three-phase motor phase loss protector to improve reliability and protect important systems.

A dependable three-phase motor phase loss protector gives added peace of mind in continuous phase-sensitive use.

## Details

- **Price:** 7.43 USD - 14.63 USD
- **Vendor:** DDY GROUP CO.,LTD.
- **Tags:** DDY Molded Case Circuit Breaker, MCCB

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Model: DZ15D-40/3902 Three-lamp version | 7.43 USD | In stock |
| Model: DZ15D-100/3902 Three-lamp version | 9.23 USD | In stock |
| Model: DZ15D-40/3902 Digital Display | 12.38 USD | In stock |
| Model: DZ15D-100/3902 Digital Display | 14.63 USD | In stock |

## Images

- Three-phase motor phase loss protector, submersible pump protection switch, 40A/100A fan motor phase loss protector.
- Three-phase motor phase loss protector, submersible pump protection switch, 40A/100A fan motor phase loss protector.
- Three-phase motor phase loss protector, submersible pump protection switch, 40A/100A fan motor phase loss protector.

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> Source: [DDY GROUP CO.,LTD.](https://ddysupply.com/products/three-phase-loss-protector)
> Updated: 2026-05-06