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PV combiner configuration family

AC Combiner Boxes

AC combiner configurations for multi-inverter collection and distribution interfaces. This family groups 9 reviewed configurations by voltage, input/output topology and protection architecture.

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NBWX-1 AC distribution / combiner box
Review before quotationConfirm inverter quantity, AC voltage, protection architecture and metering scope.Native product image and configuration detail are matched at model level.

Configuration matrix

Compare the electrical boundary before selecting a model.

Values shown are source-backed configuration identifiers. Final component selections, ratings, drawings and documents are confirmed against the project specification.

NBWX-1 AC distribution / combiner box
Model NBWX-1

AC distribution / combiner box

Voltage
230/400V AC
Input / output
- / -
Arrangement
metering + AC SPD
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NBWX-4 AC combiner box
Model NBWX-4

AC combiner box

Voltage
400/480/690V AC
Input / output
4 / 1
Arrangement
relay protection + optional metering
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NBWX-6 AC combiner box
Model NBWX-6

AC combiner box

Voltage
400/480/690V AC
Input / output
6 / 1
Arrangement
relay protection + optional metering
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NBWX-4 AC combiner box
Model NBWX-4

AC combiner box

Voltage
230/400V AC
Input / output
4 / 1
Arrangement
MCCB + Type 2 AC SPD
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NBWX-6 AC combiner box
Model NBWX-6

AC combiner box

Voltage
230/400V AC
Input / output
6 / 1
Arrangement
MCCB + Type 2 AC SPD
Review model details →
NBWX-4 AC combiner box
Model NBWX-4

AC combiner box

Voltage
690V AC
Input / output
4 / 1
Arrangement
MCCB + Type 2 AC SPD
Review model details →
NBWX-6 AC combiner box
Model NBWX-6

AC combiner box

Voltage
690V AC
Input / output
6 / 1
Arrangement
MCCB + Type 2 AC SPD
Review model details →
NBWX-4 AC combiner box
Model NBWX-4

AC combiner box

Voltage
800V AC
Input / output
4 / 1
Arrangement
MCCB + Type 2 AC SPD
Review model details →
NBWX-6 AC combiner box
Model NBWX-6

AC combiner box

Voltage
800V AC
Input / output
6 / 1
Arrangement
MCCB + Type 2 AC SPD
Review model details →

Related product paths

Continue through adjacent interfaces.

Hub

PV Combiner & Distribution Equipment

Return to all available DC and AC product families.

Related family

AC Distribution and Protection Boxes

AC distribution, RCD and contactor arrangements for downstream PV interfaces.

Related family

DC and AC Combiner Boxes

Integrated DC and AC collection boundaries for compact project-defined scopes.

Technical reading

Continue with the engineering question behind the configuration.

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 guide

Comparing 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 →Electrical protection / Surge protection

AC SPD vs DC SPD: Key Differences, Applications and How to Choose

AC and DC surge protective devices are not interchangeable. This guide compares their operating physics, standards, ratings, installation rules and selection checks.

Read Insight →Electrical enclosures / Standards guide

How to Choose the Right IP Rating for Your Application

An IP code has two independent digits: the first covers solids and access, while the second covers water. This guide explains the IEC 60529 test logic and how to specify a practical enclosure rating.

Read Insight →