Our MCB breaking capacity is up to 10-15KA , the DC
voltage for MCB MCCB SPD is up to 1500V.
HONI Three-Phase AC/DC PV Protection Box integrates the AC protection section and DC string protection section into one wall-mounted enclosure. It can be configured with three-phase AC MCB, AC/DC surge protection devices, DC fuses and dual lockable DC isolators, helping reduce on-site wiring complexity, installation time and component sourcing. OEM and ODM configurations are available according to project requirements.
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:
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
Main functions
The DC section provides protection and isolation for photovoltaic string circuits.
Available configuration
Main functions
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.
The enclosure uses a modular dual-row structure with a total capacity of up to 36 DIN modules.
Enclosure features
Transparent Smoked Doors
Flexible Cable Entry
This product is suitable for:
| 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 |
