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Reviewed configuration
NBWX-4 AC combiner box
A 690V AC configuration with 4 input and 1 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 | NBWX-4 |
|---|---|
| Configuration type | AC combiner box |
| Voltage class | 690V AC |
| Input count | 4 |
| Output count | 1 |
| Protection / switching architecture | MCCB + Type 2 AC SPD |
Technical specifications
| Grid topology | TN-S (5-conductor system: L1, L2, L3, PE, N) |
|---|---|
| Rated Voltage (UN) | 690V |
| Rated Insulation Voltage (Ui) | 800V |
| Frequency | 50Hz/60Hz |
| Operating Temperature | -25 °C up to +60 °C |
| Enclosure | Up to IP65 (IEC 60529) / IK 10 (IEC62262) |
| Material | Powder Coating Metal |
| Dimension | 180*80*40cm |
Ac Input
| Number (Inverter) | 4 *up to 80KW solar inverters | 4 *up to 110KW solar inverters | 4 *up to 138KW solar inverters |
|---|---|
| AC Breaker | 4*690V 160A | 4*690V 200A | 4*690V 250A |
| Rated Current per Input (Inc) | Up to 160A | Up to 200A | Up to 250A |
| Connection | Via V-clamp (for Al and Cu cables) |
Ac Output
| Number | 1 per phase (Optionnally 2) |
|---|---|
| AC Breaker | 1*690V 630A | 1*690V 800A | 1*690V 1000A |
| Rated Current Output(InA) | 630A | 800A | 1000A |
| Connection/Via | V-clamp (for Al and Cu cables) |
Surge Protection Device
| Type | Type 2AC 4P |
|---|
Related configurations
Compare nearby arrangements in the same family.
Model NBWX-1
AC distribution / combiner box
- Voltage
- 230/400V AC
- Input / output
- - / -
- Arrangement
- metering + AC SPD
Model NBWX-4
AC combiner box
- Voltage
- 400/480/690V AC
- Input / output
- 4 / 1
- Arrangement
- relay protection + optional metering
Model NBWX-6
AC combiner box
- Voltage
- 400/480/690V AC
- Input / output
- 6 / 1
- Arrangement
- relay protection + optional metering
Model NBWX-4
AC combiner box
- Voltage
- 230/400V AC
- Input / output
- 4 / 1
- Arrangement
- MCCB + Type 2 AC SPD
Technical context
Use the relevant selection guide before finalizing the scope.
Solar PV / Application guide
PV AC Combiner Box: A Practical Guide to Functions, Sizing, and Installation
How does a PV AC combiner box work? Learn its functions, breaker sizing rules, and installation steps — then request a quote from NEUTRON.
Read Insight →Solar PV / Application guideComparing AC and DC Combiner Boxes: A Complete Guide for Solar Installers
AC and DC combiner boxes occupy opposite sides of the inverter. This guide compares their topology, protection, voltage duty and selection basis for solar projects.
Read Insight →