WLM7DC-400A-2300 2Poles WLM7DC Series Photovoltaic solar type dc mccb 250vdc/500vdc/750VDC/1000VDC/1500VDC 250A 3 Poles solar mccb
MCCB Highlights
WLM7DC MCCB: Application field of centralized inverter: PV string is output to DC combiner box for confluence, and then DC/AC inverter is used for inversion. After AC output, the voltage is boosted and connected to the grid. DC combiner box and DC side of inverter shall be equipped with DC circuit breaker, with working voltage of DC1000V → DC1500V.
Remote Monitoring and Communication Capabilities
In the era of smart and connected systems, the ability to remotely monitor and communicate with electrical components is becoming increasingly important. DC MCCBs are equipped with advanced communication capabilities, allowing for remote monitoring of their status, trip events, and operational parameters. This level of connectivity enables proactive maintenance and troubleshooting, leading to improved system reliability and reduced downtime.
Furthermore, remote communication capabilities also facilitate integration with supervisory control and data acquisition (SCADA) systems, allowing for centralized monitoring and control of DC MCCBs across multiple locations. This level of integration enhances the overall visibility and management of the electrical infrastructure, contributing to improved operational efficiency and maintenance practices.
Main performance index of WLM7DC series circuit breaker
| WLM7DC Moulded Case Circuit Breaker | 400Q | ||||||||||||
| Rated operating current In (A),40℃ | 250-280-315-320-350-400 | ||||||||||||
| 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 | – | – | 50 | ||||||||||
| DC500V | – | – | 50 | ||||||||||
|
Rated ultimate short-circuit breaking capacity Icu(kA) |
DC750V | – | – | 25 | |||||||||
| DC1000V | – | – | 25(3P40) | ||||||||||
| DC1250V | – | – | – | ||||||||||
| DC1500V | – | – | 10(3P30) | ||||||||||
|
Rated service breaking capacity Ics(kA) |
DC250V | – | – | 50 | |||||||||
| DC500V | – | – | 50 | ||||||||||
| DC750V | – | – | 25 | ||||||||||
| DC1000V | – | – | 25(3P40) | ||||||||||
| DC1250V | – | – | – | ||||||||||
| DC1500V | – | – | 10(3P30) | ||||||||||
| Standard | |||||||||||||
| Utilization category | A | ||||||||||||
| Ambient temperature | |||||||||||||
| Safety of insulation | ■ | ||||||||||||
| Arcing distance | 0 | ||||||||||||
|
Mechanical life (CO recycle) |
Maintenance free | 20000 | |||||||||||
|
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 | 130/182 | |||||||||||
| Height | 270 | ||||||||||||
| Depth | 125.8 | ||||||||||||
| Weight | |||||||||||||
| Weight(kg)/Fixed | 2P | 2.5 | |||||||||||
| 3P | 3.2 | ||||||||||||
| 4P | – | ||||||||||||
Overall and installation dimensions of circuit breaker
