NEUTRONPower Distribution & New EnergyMenu
Reviewed configuration
NHS-3/3 Door-clutch DC string box
A 600/1000V DC configuration with 3 input and 3 output boundary. Confirm the project specification before release.
Source-backed technical data
Complete configuration parameters, not only a model summary.
The table below is transcribed from the approved catalogue technical sheet for this configuration. The final drawing, BOM and inspection scope remain subject to the agreed project specification.
Configuration summary
| Model | NHS-3/3 |
|---|---|
| Configuration type | Door-clutch DC string box |
| Voltage class | 600/1000V DC |
| Input count | 3 |
| Output count | 3 |
| Protection / switching architecture | SPD + isolator |
Technical specifications
| Input | 3 strings |
|---|---|
| Output | 3 strings |
| Max Voltage | 600V | 1000V |
| Short Circuit current per Input (Isc) | 15A-30A (changeable) |
| Max Current Output | 50A | 50A |
| Material | Polycarbonate |
| Degree of Protection | IP66 |
| Impacts | IK10 |
| Dimensions (W*H*D) | 200*300*150 |
| Input Cable Glands | PG09, 2.5-16mm |
| Output Cable Gland | PG21, 2.5-16mm |
| Operating temperature | -25°C - +60°C |
Related configurations
Compare nearby arrangements in the same family.
Door-clutch DC string box
- Voltage
- 600/1000V DC
- Input / output
- 1 / 1
- Arrangement
- SPD + isolator
Door-clutch DC string box
- Voltage
- 600/1000V DC
- Input / output
- 2 / 1
- Arrangement
- SPD + isolator
Door-clutch DC string box
- Voltage
- 600/1000V DC
- Input / output
- 2 / 2
- Arrangement
- SPD + isolator
Door-clutch DC string box
- Voltage
- 1000V DC
- Input / output
- 3 / 1
- Arrangement
- current protection + SPD + isolator
Technical context
Use the relevant selection guide before finalizing the scope.
How to Choose a Solar Combiner Box: B2B Buyer Guide (2026)
Choose a solar combiner box by fixing system voltage, string count, output current, protection, enclosure conditions and monitoring in that order.
Read Insight →Solar PV / Technical guidePV String Protection Basics: gPV Fuses & Monitoring
Where PV strings are paralleled, healthy strings can backfeed a faulted string, so the prospective fault current is not limited to a single module. The protection task is to clear that fault fast while never interrupting normal operation. Three realities drive the design:
Read Insight →