20 in 1 out DC 1000V Combiner Box
Why Quality Matters?
Grouped by product family for cleaner RFQ selection: one page shows the available variant SKUs and key specification choices without creating duplicate product pages.
Variant SKU:
RFQ inputs
Quantity, destination, certificate needs.
QC proof
Inspection and document review before shipping.
Export ready
Packaging and mixed-container planning.
Procurement Snapshot
Commercial details are confirmed by SKU, quantity and destination at RFQ stage.
RFQ checklist
Send these points with your inquiry for faster pricing.
Documents to confirm
Often sourced together
Technical Data
Specification values for buyer review and RFQ matching
| Product Family ID | OS-ETK-EKDBT-PV20-1-BFS-1000 |
|---|---|
| Variant SKU Count | 1 |
| Supplier | ETK |
| Supplier Model | EKDBT-PV20-1-BFS-1000 |
| Product Type | PV Combiner Box |
| Available Voltage Ratings | 1000VDC |
| Rated Voltage | 1000VDC |
| Rated Current | 15A |
| Protection Degree | IP65 |
| DC Fuse | 1000VDC, 10×38mm, 15A; qty 40 |
| DC SPD | 1000VDC, 2P, 40kA, Type 2; qty 1 |
| Dimensions | 860x560x200mm |
| Enclosure | IP65, Metal (customizable shell materials) |
| Input Strings | 20 |
| Main Switch | 1000VDC, 400A 2P DC MCCB; qty 1 |
| Operating Temperature | -25°C to +55°C |
| Output Strings | 1 |
| Poles | 2P |
| Protection Degree | IP65 |
| Rated Current | 15A |
| Rated Voltage | 1000VDC |
| System Voltage | 1000VDC |
Product Overview
Twenty-string 1000V DC combiner for utility and large commercial projects where 20 PV strings feed one inverter MPPT input. At 20 strings × 12A Isc, the combined output reaches approximately 240A — the output protection and cable cross-section must be sized for this current.
20-string combiners are a standard configuration for large central inverters accepting 1000-1500A DC input current from multiple combiners. Share the number of combiners and inverter DC input configuration at RFQ for a complete protection design.
Twenty-string combiners serve large commercial blocks in the 300–500kW range. At this scale, combiner monitoring and communication ports become critical for maintenance planning — confirm the monitoring output protocol (RS485, Modbus, dry contact) matches your site SCADA or cloud monitoring platform before specifying the unit.
Applications
PV string combining
DC array protection
C&I rooftop solar
Utility-scale field combiner circuits
Frequently Asked Questions
How many 20-string combiners feed a typical large central inverter?
A 1.25MW central inverter at 1000V DC and 12A per string requires approximately 104 strings — five or six 20-string combiners, with their outputs aggregated at an inverter input DC switchboard. The exact number depends on the inverter MPPT configuration.
What combiner output protection is required at 240A?
A DC MCCB rated at 250A from the EKM6DC-250 family is the standard output protection for a 240A combined current. Include the output breaker in the RFQ to receive a complete combiner and protection package.
Technical Guides
Products & Systems
Markets & Services
Need project-specific engineering support?
Free CAD layout, wind/snow load calculations, and BOM review included with project orders.
Related Products
More components from the same application category.
1 in 1 out DC 1000V Combiner Box
1 in 1 out DC 1000V Combiner Box is organized as one OmniSol product-family page with 1 selectable v...
1 in 1 out DC 600V Combiner Box
1 in 1 out DC 600V Combiner Box is organized as one OmniSol product-family page with 1 selectable va...
12 in 1 out DC 1000V Combiner Box
12 in 1 out DC 1000V Combiner Box is organized as one OmniSol product-family page with 1 selectable ...