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YZIB5Z Series Intelligent DC Miniature Circuit Breaker is suitable for low-voltage power grid lines with a rated DC voltage of 48V/250V (customizable) and a rated current up to 63A/100A (customizable). It integrates comprehensive protection, high-precision measurement, control, and communication functions, and is equipped with RS485 communication mode. Cooperating with an intelligent gateway, it can upload real-time data, operating status, line faults, alarms and other information to the electrical safety Internet of Things supervision platform in a timely manner. This realizes data monitoring, hidden danger management, energy consumption management and power consumption optimization of the power distribution system, effectively improves the comprehensive perception ability of the line, and enhances the safety and reliability of power supply.
| Model | YZIB5Z-63 | YZIB5Z-100 | |
| parameter | Pole Number | 1P, 2P | |
| Rated Voltage Ue(V) | DC48/DC220/DC230/DC250 | ||
| Rated Current (A) | 6, 10, 16, 20, 25, 32, 40, 50, 63 | 70, 80, 100 | |
| Rated Insulation Voltage Ui(V) | 500 | ||
| Rated Impulse Withstand Voltage Uimp (kV) | 4 | ||
| Rated Ultimate Short-Circuit Breaking Capacity | 10 | 6 | |
| Rated Service Short-Circuit Breaking Capacity | 7.5 | 6 | |
| Mechanical Life (Times) | 20000 | ||
| Electrical Life (Times) | 10000 | ||
| Protection | Overload Delay Protection | 1.05In no action, 1.3In action (agreed time) | |
| Short-Circuit Instantaneous Protection | Setting value: 8In±20% (agreed time) | ||
| Electronic Overload Protection | 1A~1.2In adjustable, default 1.2In action | ||
| Overvoltage Protection | DC48V: Action above DC 56V (adjustable), action time 3~15S adjustableDC250V: Action above DC 300V (adjustable), action time 3~15S adjustable | ||
| Undervoltage Protection | DC48V: Action below DC 30V (adjustable), action time 0.6~5S adjustableDC250V: Action below DC 180V (adjustable), action time 0.6~5S adjustable | ||
| Over-temperature Protection | 60~85℃ adjustable, default 80℃ action, action time 10s | ||
| Remote Control | Remote Opening | Controlled by remote Web terminal or APP | |
| Remote Closing | Controlled by remote Web terminal or APP | ||
| Measurement | Voltage | 0.7Un≤U≤1.3Un, accuracy ±0.5% | |
| Current | 0.05In ≤ I ﹤ 0.2In, accuracy ±0.5%; 0.2In ≤ I ﹤ 1.2In, accuracy ±0.2% | ||
| Power | 0.05In≤I﹤0.1In, accuracy ±1%; 0.1In<I≤1.2In, accuracy ±0.5% | ||
| Electric Energy | 0.05In≤I≤0.1In, accuracy ±1%; 0.1In<I≤1.2In, accuracy ±0.5% | ||
| Communication | Communication Interface | RS485 (standard configuration) | |
| Communication Protocol | Modbus-RTU | ||
| Communication Rate | Default 9600bps, optional 2400bps, 4800bps, 9600bps | ||