Jiuji Electric Automatic Adjustable Over Under 3 Three Phase Voltage Protector Device

Jiuji Electric Automatic Adjustable Over Under 3 Three Phase Voltage Protector Device. Patented Dual-Mode Protection: Supports both synchronous and asynchronous three-phase modes for flexible system safety. Precise Voltage Control: Adjustable over/under-voltage protection ranges from 140V to 300V with 0.1s response. Customizable Current Rating: Available in 60A, 100A, 120A, or fully customized current specifications. Comprehensive Fault Detection: Protects against overvoltage, undervoltage, overcurrent, phase sequence errors, and unbalance. In-House PCB Manufacturing: PCBs and relays produced internally with AOI inspection for strict quality assurance. Adjustable Timing Parameters: Configurable power-on delay, recovery delay, and protection action time from 1s to 500s. Global Delivery & Secure Packing: Standard export packaging with reinforced cushioning for safe worldwide logistics. Full Customization Capability: Offers full customization, minor customization, and design-based customization options.