DCDB Enquire Now
DCDB is used to protect the system if there is any fault during failure in DC side. It an important part of SPV system as there should be adequate protection in DC side. The DCDB incorporates isolator/Breaker to switch off the system during fault, there is a meter which tells you exact PV array voltage and current you are getting. It also has surge protection to save your system from any surges occurred due to fault or other phenomenon.
IP65 Enclosure: The combiner box enclosures are typically made from thermoset (GRP or polyester), or thermoplastic (polycarbonate) material, and come with IP65 protection. Enclosures come in different sizes, depending on the number of input strings and protection features implemented in the combiner box.
Fuse Protection for Strings: DC fuses rated from 2A to 25A from leading manufacturers are used in the combiner box to provide overcurrent protection. Fuses can be provided with or without indication.
Surge Protection Device: Surge Protection devices or SPD’s in the combiner/junction box protects electrical and electronic equipment’s from the power surges and voltage spikes. Surge protection devices divert the excess voltage and current from transient or surge into grounding wires. SPD’s used by Designways in the combiner boxes meet Type 2 regulations and are typically rated between 600 to 1000V.
DC Disconnect/Isolation: An accessible disconnect/isolator switch is recommended for placement before the inverter to disconnect the DC side of the system when maintenance is being performed on the inverter.
Cable Glands/Connectors: The combiner/array junction box offered by Designways is provided with IP 67 rated Cable Glands or MC 4 connectors at the input and output side to terminate the array strings into the box.
