80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector

300(L)*210(W)*140(H) mm

This section details the system's visual feedback and user control interface.
Indicator Definitions

● Run Indicator: Constantly on after power-up; flashes once every second during communication.
● Fault Indicator: Illuminates if the internal heatsink temperature is too high or if the external temperature sensor wire is open/shorted.
● Alarm Indicator: Lights up during overvoltage, undervoltage, overload, short circuit, internal/external overheating, or excessive leakage current.
● Short Circuit Indicator: Activates when a short circuit is detected in the load equipment.
● Silence Indicator: Illuminates when the alarm or fault sounder is silenced.
● Closed Switch Indicator: Lights up when the circuit is closed and turns off when open.

Button Definitions

● Self-Test: Restarts the device and checks the buzzer, indicators, and LCD screen.
● Set: Enters the settings menu to configure thresholds, protection parameters, and delay times.
● Reset: Regardless of whether the device is in a normal, alarm, or fault state, this rechecks all channel parameters and determines the status.
● Query: Allows you to check the device number, alarm records, and power consumption data.
● Silence: Mutes the alarm sound. The silence indicator remains on, but the alarm status is not cleared until the channel parameters return to normal.
● Return: Exits to the previous menu level.
● Direction: Used to move the cursor or change numbers.