HONI Three Phase ACDC PV Protection Box
The product combines the three-phase AC protection section and DC protection section in one organized enclosure. It provides a practical solution for protecting the AC output side and DC string side of a photovoltaic installation.
The internal configuration can include:
Three-phase AC miniature circuit breaker
AC surge protection device
DC fuse protection
DC surge protection device
Dual lockable DC isolators
Reserved modular positions for project expansion
The enclosure is suitable for wall-mounted installation and is equipped with smoked transparent doors for convenient inspection and operation.
Main Features：Three-phase AC protection, DC fuse protection, DC SPD, dual lockable DC isolators, 36-way wall-mounted enclosure and OEM customization.
Application：Residential and commercial photovoltaic inverter and power distribution systems.
Customization：Voltage, current, protection devices, wiring, labels and packaging can be customized according to project requirements.
1. Integrated AC + DC Protection
The AC protection section and DC protection section are integrated into one enclosure, reducing installation space, external wiring and component sourcing.
2. Dedicated Three-Phase AC Section
The upper section can be configured with a three-phase AC MCB and surge protection devices to provide organized AC circuit protection for photovoltaic inverter systems.
3. Complete DC String Protection
The DC section can integrate fuse protection and surge protection devices to help protect photovoltaic string circuits against overcurrent and transient overvoltage.
4. Dual Lockable DC Isolators
Two rotary DC isolators provide independent and visible isolation control. The lockable design helps improve maintenance safety and prevent unauthorized operation.
5. Project-Oriented Customization
The internal device configuration, current rating, voltage rating, labels, wiring layout and enclosure arrangement can be customized according to different photovoltaic projects.
The AC section is designed for the output side of a three-phase photovoltaic inverter.
Available configuration
Three-phase AC MCB
Residual current protection device, optional
AC surge protection device
Neutral and PE terminals
Reserved modular positions
Project-specific internal wiring
Main functions
Overload protection
Short-circuit protection
Surge protection
Circuit isolation
Organized AC power distribution
The DC section provides protection and isolation for photovoltaic string circuits.
Available configuration
DC fuse holders and fuse links
DC surge protection devices
Dual DC rotary isolators
Positive and negative terminals
PE grounding terminals
Project-specific DC wiring
Main functions
String-level overcurrent protection
DC surge protection
Visible circuit isolation
Safe maintenance operation
Independent DC circuit control
The enclosure uses a modular dual-row structure with a total capacity of up to 36 DIN modules.
Enclosure features
36-way modular layout
Dual-level internal arrangement
Smoked transparent doors
Wall-mounted installation
Multiple top cable-entry knockouts
Reserved blank modules
Clearly numbered DIN positions
Separate AC and DC functional areas
Transparent Smoked Doors
The smoked transparent doors allow installers and maintenance personnel to check device status without opening the internal protection area.
Flexible Cable Entry
Multiple top-entry knockouts provide flexible cable routing for different installation environments.
This product is suitable for:
Residential rooftop photovoltaic systems
Villas and private solar installations
Commercial photovoltaic systems
Small industrial solar projects
Three-phase solar inverter systems
PV equipment rooms
Solar power distribution systems
EPC and system integration projects
PV Array → PV Inverter → AC/DC PV Protection Box → AC Distribution Panel → Electrical Loads
Application explanation
The PV array generates DC power and supplies it to the inverter. The protection box provides DC-side protection and isolation, as well as AC-side protection between the inverter and the main distribution panel.
| Item | Specification |
| Product Name | Three-Phase AC/DC PV Protection Box |
| Brand | HONI |
| Phase | Three Phase |
| Application | Photovoltaic System Protection |
| Enclosure Capacity | 36 Way |
| Installation | Wall Mounted |
| Door Type | Smoked Transparent Double Doors |
| AC Protection | MCB and SPD, Configurable |
| Residual Current Protection | Optional |
| DC Protection | DC Fuse and DC SPD |
| DC Isolation | Dual Lockable DC Isolators |
| AC Rated Voltage | Customized According to Project |
| AC Rated Current | Customized According to Project |
| DC Rated Voltage | Customized According to Project |
| DC Rated Current | Customized According to Project |
| Cable Entry | Top Entry Knockouts |
| Internal Wiring | Factory Pre-Wired, Optional |
| Label Language | English / French / Customized |
| Enclosure Color | Light Grey |
| OEM / ODM | Available |
| Application Market | Residential and Commercial PV |
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