Based on this product's specifications, here are some alternatives and similar models
F&F CZF-312 Phase Loss Monitoring Relay
Summary description:
The F&F CZF-312 is a phase loss monitoring relay designed to protect three-phase electrical equipment. It monitors the presence of all three phases and disconnects the load if a phase loss or voltage asymmetry occurs. This device is essential for industrial and residential electrical installations to prevent damage to motors and sensitive electronics caused by phase failure.