4 in 2 out DC 1000V Combiner Box
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Grouped by product family for cleaner RFQ selection: one page shows the available variant SKUs and key specification choices without creating duplicate product pages.
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Technical Data
Specification values for buyer review and RFQ matching
| Product Family ID | OS-ETK-EKDBS-PV4-2-IFS-1000 |
|---|---|
| Variant SKU Count | 1 |
| Supplier | ETK |
| Supplier Model | EKDBS-PV4-2-IFS-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 8 |
| DC SPD | 1000VDC, 2P, 40kA, Type 2; qty 2 |
| Dimensions | 296.5x390.5x131.5mm (26 ways) |
| Enclosure | 26 Ways, IP65, PC material |
| Input Strings | 4 |
| Main Switch | 1000VDC, 32A isolator switch; qty 2 |
| Operating Temperature | -25°C to +55°C |
| Output Strings | 2 |
| Poles | 4 modules |
| Protection Degree | IP65 |
| Rated Current | 15A |
| Rated Voltage | 1000VDC |
| System Voltage | 1000VDC |
Product Overview
Four-string combiner with two separate outputs for dual-MPPT inverter applications where 4 strings must be split into two groups of 2 strings each, with each group connecting to a separate MPPT input. Per-string fuse protection with two independent output circuits in one weatherproof enclosure.
The 2-output configuration eliminates two separate 2-string combiners, reducing enclosure count and field wiring while maintaining independent string group routing for dual-MPPT inverters.
The dual-output 4-string version feeds two MPPT inputs simultaneously from an 8-string sub-array. This configuration is used in larger inverters with dual MPPT inputs — each MPPT receives its own independently fused 4-string group within a single enclosure, reducing conduit runs and cabinet count.
Applications
PV string combining
DC array protection
C&I rooftop solar
Utility-scale field combiner circuits
Frequently Asked Questions
How are the 4 strings distributed across the 2 outputs?
The standard configuration assigns 2 strings per output, giving 24A per output at 12A Isc per string. Custom configurations can split strings 1-3 and 4 combinations if string Isc values differ — confirm the required string grouping at RFQ.
Is the 4-in/2-out configuration more expensive than two 2-in/1-out combiners?
Typically a single 4-in/2-out enclosure is more cost-effective than two separate 2-in/1-out units because one enclosure, one IP-rated housing, and one mounting installation covers both circuit groups.
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