Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies
Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies
Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies
Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies
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Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies
Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies
Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies
Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies

Wholesale 80A Three-Phase Intelligent Electrical Fire Current-Limiting Protector Manufacturers, Companies

The 80A Three-Phase Electrical Fire Current-Limiting Protector is an advanced safety device designed to prevent electrical fires. It features real-time monitoring of current, voltage, temperature, and fault arcs. Upon detecting a short circuit or arc fault, it rapidly limits current within microseconds to extinguish arcs instantly. Integrated with RS485 and 4G communication, it uploads data to the cloud for remote monitoring. This comprehensive solution ensures reliable protection for industrial and commercial power systems.

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Product Description

Technical Parameters

Item Specification
Rated Current 20A/32A/40A/50A/63A/80A
Supply Voltage 220VAC (175~250V)
Display Chinese LCD Screen
Short Circuit Protection <150us
Overload Protection Range: 0~100%; Delay: 0~60s
Overvoltage Protection Range: 221~300V; Delay: 0~60s
Undervoltage Protection Range: 100~219V; Delay: 0~60s
Wire Temperature Monitoring Range: 0~85℃; Delay: 0~60s
Leakage Current Monitoring Range: 30~1000mA; Delay: 0~60s
Communication RS485, Wireless LORA, NB-IoT, 4G (Optional)
Operating Temperature -20~85℃
Product Dimensions 300*210*140mm
Installation Bottom Screw Mounting

Product Display

real-time-monitoring-and-data-display
smart-current-limiting-arc-fault-detection

Outline and Installation Dimension

Outline and Installation Dimension
300(L)*210(W)*140(H) mm

Operation & Status Indicators

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.

Frequently Asked Questions

How fast is the short circuit protection response?
The system provides ultra-fast short circuit protection with a response time of less than 150 microseconds (<150us) to prevent electrical fires and equipment damage.
What communication protocols are supported?
The device supports RS485 communication by default, with optional wireless modules including LORA, NB-IoT, and 4G for remote management and smart monitoring.
Can the voltage and overload protection parameters be adjusted?
Yes, parameters can be customized via the Set button. Overvoltage ranges from 221~300V, undervoltage from 100~219V, and overload ranges from 0~100%, all with an adjustable delay between 0 and 60 seconds.
What happens when the Silence button is pressed during an alarm?
Pressing the Silence button will mute the audible alarm, and the Silence Indicator will illuminate. However, the system's alarm status remains active until the detected abnormal conditions return to normal levels.
What are the installation requirements and dimensions?
The unit measures 300(L) * 210(W) * 140(H) mm and uses bottom screw mounting, making it suitable for standard electrical cabinet configurations.

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