Features Enhanced Circuit Safety: Integrates protection against overload, short circuit, undervoltage, and phase loss, ensuring reliable circuit breaker operation to minimize accidents. Parameters Display: Automatically cycles to display working voltage, current, and real-time residual current values, enabling convenient query of fault parameters and trip history. Intelligent Operation: Offers both automatic and manual opening and closing functions for easy user operation in various scenarios. Fire-resistant Design: Made of PC material to prevent fire hazards and ensure work stability, providing peace of mind for users. Convenient Installation: Features a tunnel type wiring port with a larger diameter for easy and secure wiring, ensuring convenient and reliable installation. Specification: Item Type: 2 Phase DIN Rail Voltmeter Material: PC Voltage: 120-300V Current Setting Range: 1A-63A Over, Under Voltage Value: Over voltage adjustable less than or equal to 300V, Under voltage adjustable greater than or equal to 120V Delay Time: 3 to 300s Package List: 1 x 2 Phase DIN Rail Voltmeter Package List 1 x 2 Phase DIN Rail Voltmeter