PV DC Combiner Box 4 Inputs / 2 Outputs | 1000V DC | 32A

Products

Our MCB breaking capacity is up to 10-15KA , the DC

voltage for MCB MCCB SPD is up to 1500V.

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PV DC Combiner Box 4 Inputs / 2 Outputs | 1000V DC | 32A | IP65

Outdoor wall-mount steel enclosure with integrated DC breaker, fuse and surge protection.

System voltage：1000V DC

Protection rating：32A

Enclosure：IP65

Overall size：500×300×200 mm

Product Overview

The HONI 4-in / 2-out PV DC combiner box is a compact DC-side protection assembly for photovoltaic systems. It combines two protected DC branches in one IP65 wall-mount enclosure. The supplied drawing shows 1000V DC, 32A protection, 10×38 DC fuse protection and Type 2 40kA DC surge protection, with a dedicated PE grounding bar.

Key Design Features

4-input / 2-output PV DC configuration (project requirement).
Two independent protected DC circuits in one enclosure.
2 × 32A / 4P DC1000V circuit breakers shown in the engineering drawing.
4 × ATPV-DC1000V 32A, 10×38 fuse positions shown in the engineering drawing.
2 sets of Type 2, 40kA, DC1000V surge protection.
Dedicated protective-earth terminal bar and lid earth bonding.
IP65 outdoor wall-mount enclosure, RAL7035, 1.2mm cold-rolled steel.
11 prepared PG11 cable-entry holes at the bottom.

Mechanical & Serviceability

Symmetrical internal layout supports straightforward inspection and replacement.
DIN-rail mounted protection devices.
Clear DC input/output and polarity labels.
Dedicated earth bar improves grounding organization.

Engineering Drawing & Protection Architecture

The supplied engineering drawing defines the enclosure construction and the duplicated DC protection circuits.

Typical Application

PV array / string DC-side protection and distribution before downstream inverter or DC equipment. Final string voltage, current, polarity, conductor size and protective-device selection must be checked against the project electrical design.

Technical Specifications

Parameter	Specification
Product type	PV DC Combiner Box
Configuration	4 Inputs / 2 Outputs
Drawing reference	HL1
Rated system voltage	DC 1000V
Protection current	32A (breaker/fuse rating shown in drawing)
DC circuit breaker	2 pcs × 4P, 32A, DC1000V
DC fuse protection	4 pcs × ATPV-DC1000V, 32A, 10×38
DC surge protection	2 sets × Type 2, 40kA, DC1000V
Protective earth	Central PE grounding bar; lid bonding conductor
Enclosure protection	IP65
Enclosure size	W500 × H300 × D200 mm (including door/lid, per drawing)
Enclosure material	1.2 mm cold-rolled steel
Surface finish / color	Powder-coated RAL7035
Installation	Outdoor wall mounting
Door / lid locking	Latch locks
Cable entry	11 × PG11 installation holes at bottom