Based on this product's specifications, here are some alternatives and similar models
Phase loss sensor FF CZF-BT – NO/NC contacts, model CZF-BT
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.