WLM7DC-630A-2300 2poles WLM7DC Series Photovoltaic solar type dc mccb solar mccb 250vdc/500vdc/750VDC/1000VDC/1500VDC dc 250A 2 P
MCCB Highlights
WLM7DC small ampere has the structural characteristics of high protection accuracy and long service life.
The mechanism components and release are designed and optimized on the M6 structure platform, ensuring the reliability and tripping accuracy. Mechanical life: 10000 times, electrical life: 2000 times
Usage scenario of WLM7DC solar mccb
WLM7DC patented technology & design innovation
1. Large opening distance
2. Large capacity metal anti-dissociation grid
3. Narrow slit pressurized air blowing solution
4、Enhanced Coordination and Selectivity
Coordination and selectivity are critical aspects of electrical protection, especially in complex DC systems where multiple MCCBs may be installed in series. DC MCCBs are designed to offer enhanced coordination and selectivity features, ensuring that in the event of a fault, only the MCCB closest to the fault location trips, minimizing the impact on the rest of the system.
This selective coordination is essential for maintaining continuity of power to unaffected areas of the DC system, preventing unnecessary shutdowns and disruptions. Additionally, the ability to coordinate multiple MCCBs ensures that the protection scheme is optimized for the specific characteristics of the DC installation, providing a tailored and reliable protection solution
Main performance index of WLM7DC series circuit breaker
| WLM7DC Moulded Case Circuit Breaker | 630Q | ||||||||||||
| Rated operating current In (A),40℃ | 450-500-630 | ||||||||||||
| Rated insulation voltage Ui (V) | 1500 | ||||||||||||
| Rated impulse withstand voltage (kV) | 12 | ||||||||||||
| Rated operational voltage Ue(V),AC 50/60Hz | 110/250/500/750/1000/1200/1500 | ||||||||||||
| Breaking capacity code | – | M | H | ||||||||||
| Number of poles | 2P | – | – | ■ | |||||||||
| 3P | – | – | – | ||||||||||
| DC250V | – | – | 70 | ||||||||||
| DC500V | – | – | 70 | ||||||||||
|
Rated ultimate short-circuit breaking capacity Icu(kA) |
DC750V | – | – | 50 | |||||||||
| DC1000V | – | – | 50 | ||||||||||
| DC1250V | – | – | 20 | ||||||||||
| DC1500V | – | – | 20 | ||||||||||
|
Rated service breaking capacity Ics(kA) |
DC250V | – | – | 70 | |||||||||
| DC500V | – | – | 70 | ||||||||||
| DC750V | – | – | 50 | ||||||||||
| DC1000V | – | – | 50 | ||||||||||
| DC1250V | – | – | 20 | ||||||||||
| DC1500V | – | – | 20 | ||||||||||
| Standard | |||||||||||||
| Utilization category | A | ||||||||||||
| Ambient temperature | |||||||||||||
| Safety of insulation | ■ | ||||||||||||
| Arcing distance | 0 | ||||||||||||
|
Mechanical life (CO recycle) |
Maintenance free | 15000 | |||||||||||
|
Electrical life (CO recycle) |
Maintenance free | 2000(DC1500V is :1000times) | |||||||||||
| Release units | |||||||||||||
| Distribution protection | TM | ■ | |||||||||||
| Mounting and connection | |||||||||||||
| Fixed | Front connection | ■ | |||||||||||
| Rear connection | ■ | ||||||||||||
| Plug-in | Front connection | ■ | |||||||||||
| Rear connection | ■ | ||||||||||||
| Draw-out | Front connection | – | |||||||||||
| Rear connection | – | ||||||||||||
| DIN rail | Front connection | ■ | |||||||||||
| Dimension | |||||||||||||
|
Dimension (mm) W×H×D |
Width | 106 | |||||||||||
| Height | 275 | ||||||||||||
| Depth | 154.5 | ||||||||||||
| Weight | |||||||||||||
| Weight(kg)/Fixed | 2P | 5.85 | |||||||||||
| 3P | – | ||||||||||||
| 4P | – | ||||||||||||
Overall and installation dimensions of circuit breaker
