1 in 1 out DC 600V Combiner Box
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Technical Data
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| Product Family ID | OS-ETK-EKDBS-PV1-1-IFS-600 |
|---|---|
| Variant SKU Count | 1 |
| Supplier | ETK |
| Supplier Model | EKDBS-PV1-1-IFS-600 |
| Product Type | PV Combiner Box |
| Available Voltage Ratings | 600VDC |
| Rated Voltage | 600VDC |
| Rated Current | 15A |
| Protection Degree | IP65 |
| DC Fuse | 1000VDC, 10×38mm, 15A; qty 2 |
| DC SPD | 600VDC, 2P, 40kA, Type 2; qty 1 |
| Dimensions | 218x200x103.5mm (9 ways) |
| Enclosure | 9 Ways, IP65, PC material |
| Input Strings | 1 |
| Main Switch | 1000VDC, 32A isolator switch; qty 1 |
| Operating Temperature | -25°C to +55°C |
| Output Strings | 1 |
| Poles | 4 modules |
| Protection Degree | IP65 |
| Rated Current | 15A |
| Rated Voltage | 600VDC |
| System Voltage | 600VDC |
Product Overview
600V DC rated version of the single-string combiner for lower-voltage string architectures common in small residential systems and older 600V-architecture commercial installations. The lower voltage rating is matched to legacy string inverter DC input limits and 600V-class project designs.
For modern 1000V and 1500V system designs, use the 1000V or 1500V variants — installing a 600V-rated combiner in a higher-voltage circuit is a safety violation regardless of the actual string voltage at installation time.
Single-string 600V combiner boxes provide fusing and junction functions for legacy string inverter architectures at 600V system voltage. When upgrading a 600V array to a 1000V inverter, replace all voltage-sensitive BOS components simultaneously — mixing 600V and 1000V rated components in one circuit creates a compliance risk.
Applications
PV string combining
DC array protection
C&I rooftop solar
Utility-scale field combiner circuits
Frequently Asked Questions
Is 600V sufficient for modern residential PV?
Many modern string inverters accept up to 1000V DC. However, some markets and older designs specify 600V string architecture. Confirm the maximum string Voc under cold temperature conditions before selecting the combiner voltage rating.
Can I use this combiner on a 1000V system if the actual string voltage is below 600V?
No — the combiner must be rated for the maximum possible string voltage, not the typical operating voltage. Module Voc increases at low temperatures. If the 1000V inverter input is rated 1000V, use a 1000V-rated combiner throughout.
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