I. Overview
Three-phase current limiting protector, effectively overcoming the issues of traditional circuit breakers and monitoring devices, such as high short-circuit current, long time to interrupt short-circuit current, large arc sparks generated during short-circuit, and rapid limitation of short-circuit current with a microsecond speed to achieve arc extinguishing protection during lifespan short-circuit faults. Rated current: 0-80A, widely used for line protection of the terminal branches in various electrical power supply places, such as school dormitories, shopping malls, hotels, warehouses, residential areas, electric vehicle charging stations, and marketplaces.
II. Technical Specifications
Technical Specifications | Index | |
Frequency | 50Hz | |
Auxiliary Power Supply | AC85-265V | |
Power Consumption | Self-consumption power ≤ 3W (no load) | |
Rated Current | 0-80A | |
Short circuit protection time | ˂150us | |
Overvoltage Protection | Action Range: 1-1.20; Action Delay: 0-60S | |
Under-voltage protection | Action Range: 0.6-1; Action Delay: 0-60S | |
Overload Protection | Motion Range: 1-1.4; Motion Delay: 3-60S | |
Cable Temperature Monitoring | Scope of Monitoring | -20-120℃ ±2℃ |
Alarm Equipment | Action Range: 45%-110℃; Action Delay: 0-60S | |
Leakage Monitoring | Monitoring Scope | 20-1000mA±5mA |
Alarm Equipment | Operating Range: 30-1000mA; Delay Time: 0-60S | |
Fault Record | 20 Event Records | |
Alarm method | Audio-visual alarm (sound can be muted with a button press) | |
Contact Methods | RS485 Interface, Communication Protocol: MODBUS-RTU, Baud Rate: 9600 (default) | |
Work Environment | Workplace | A location with rain and dust-proof conditions |
Ambient Temperature | -25℃~+50℃ | |
Relative Temperature | 10% to 95% (non-condensable) | |
Altitude | No more than 5,000m | |
III. Features and Characteristics
Electrical fire-resistant current-limiting protectors are primarily used to protect against short-circuit and overload faults in the terminal lighting circuits of places with significant fire hazards. They reliably eliminate arc sparks from short-circuit or overload fault points, effectively preventing the occurrence of short-circuit fires at their source.
3.1 Panel Indicator Description
Power indicator light
Operation Indicator (Green): The light blinks at a rate of 1Hz when the protector is in normal monitoring status. It blinks rapidly when communication is in progress.
Alarm Signal Light (Red): The indicator light remains lit when a short circuit or overload alarm occurs in the protected circuit.
Buzzer: Sounds when the protector triggers an alarm.
Data Display Window: Displays the protector's current data and operational status
3.2 Technical Specifications
Fault Protection Function: In the event of a product failure, a fault indicator is activated, and the self-protection function is initiated.
Overload Protection Function: Cuts off the overloaded circuit after 3 consecutive seconds of overload to prevent fires caused by overload.
Short-circuit protection function: Cuts off the circuit power within 150 microseconds when a protected distribution circuit experiences a short circuit, preventing fires caused by the short circuit.
Real-time Current Measurement Function: Measures the current magnitude in the protected distribution circuit in real time.
Real-time temperature measurement function: Monitors the cable temperature in the protected power distribution circuit in real-time. If the cable temperature exceeds the set threshold, an alarm message is sent to the host, and the alarm status remains active until reset.
Operation Record Feature: Allows external operations on the protector to be transmitted via communication to the host computer for storage.
Four: Dimensions
