High-Quality 250A Three Phase Electrical Fire Prevention Current Limiting Protector - Reliable Safety Solution from China Suppliers and Factory Supplier, Company

Key Features

In addition to core short-circuit current limiting protection, this device integrates multiple intelligent functions to form a comprehensive electrical safety monitoring system.

• Overload Protection: Triggers current limiting when line current exceeds the rated value for a sustained period.
• Overtemperature Protection: Monitors the unit's own temperature or cable temperature, activating protection when overheating occurs.
• Multifunction Monitoring: Real-time detection and display of various electrical parameters including three-phase voltage, current, frequency, and residual current (leakage).
• Smart Alarm: Features audible and visual alarms; uploads fault information to cloud platforms or backend systems via 4G, WIFI, or RS485 for remote monitoring.
• Additional Protections: Some models include over/under voltage protection, phase loss protection, and arc fault detection.

Technical Parameters

Product Display

Outline and Installation Dimension

550(L)*288(M)*200(H) mm

Application Scenarios

Thanks to its superior short-circuit protection, this three-phase device is widely used in high-risk commercial and industrial environments where electrical safety is critical.

• Commercial Buildings: Malls, wholesale markets, and warehouses.
• Public Institutions: Schools, hospitals, hotels, and entertainment venues.
• Special Facilities: Electric vehicle charging stations, historic buildings, and dormitories.

Frequently Asked Questions