JLXMZ Photovoltaic DC MCCB
JLXMZ Photovoltaic DC MCCB
The JUNELUC JLXMZ DC Molded Case Circuit Breaker is a robust protection device engineered for high-voltage direct current (DC) systems in both residential and industrial environments. It delivers dependable protection against short circuit, overload, and under-voltage conditions, supporting operational voltages up to DC 2000V and rated currents up to 800A.
Designed with advanced arc-extinguishing technology and high breaking capacity, the JLXMZ breaker ensures rapid fault disconnection even under severe conditions. Its compact, modular construction allows for flexible installation, while its components are built to withstand heat, corrosion, and long-term mechanical stress—making it ideal for demanding applications.
The breaker complies with international standards IEC 60947-1 and IEC 60947-2, and is available in multiple voltage configurations: DC250V, DC500V, DC750V, DC1000V, DC1500V, and DC2000V
Key Applications:
- Solar photovoltaic (PV) power plants
- Energy storage and battery systems
- Industrial DC circuits and distribution panels
- Solar lighting and home solar installations
Applicable Standards: IEC 60947-1 and IEC 60947-2.
| Standard | IEC60947-1 and IEC60947-2 GB 14048.1、GB 14048.2 | |||||||
| Type | JLX2MZ-250 | JLX4MZ-400 | ||||||
| Frame level ln (A) | 250A | 400A | ||||||
| Rated current (In) (A) | 63/80/100/125/140/160 /180/200/225/250 | 225/250/300/350/400 | ||||||
| Number of poles | 2P | 3P | 2P | 3P | ||||
| Rated working voltage Ue (V DC) | DC500 | DC1000 | DC1500 | DC250 /500 | DC750 /1000 | DC1250/ 1500 | DC1250 /1500 | |
| Rated insulation voltage Ui (V DC) | DC1250 | DC1500 | DC1500 | |||||
| Rated impulse withstanding voltage Uimp (KV) | 8 | 12 | 12 | |||||
| Using category | A | |||||||
| Arcing distance (mm) | ≤50 | |||||||
| Rated short time making capacity Icm (kA) | 100% lcu | |||||||
| Rated limiting short- circuit breaking capacity Icu (kA) | H | 50 | 20 | 20 | 65 | 35 | 15 | 15(2P) 20(3P) |
| R | 55 | 25 | 25 | 70 | 40 | 20 | 15(2P) 25(3P) | |
| Electric life (times) | 3000 | 2000 | 1500 | 1000 | 1000 | 700 | 500 | |
| Mechanical life (times) | 20000 | 10000 | ||||||
| Operating Temperature | -40℃~+70℃ | |||||||
| Protection Grade | IP20 | |||||||
| Flashover Distance | ≥50 | |||||||
| Instantaneous Action Value | 10ln | |||||||
| Accessory | shunt, auxiliary, alarm, manual operation, electric operation | |||||||
