Engineered Solar Combiner & Distribution Solutions

Zhejiang TMB Electric Co., Ltd. provides comprehensive DC balance-of-system solutions designed to meet IEC standards. Our IP65 UV-resistant enclosures feature pre-wired DC miniature circuit breakers, Type II DC surge arresters, and 1000V DC gPV fuses for maximum solar array safety.

ATS Series HT-9WAY Dual Power Automatic Transfer Switch with Timer

HT-9WAY Dual Power Automatic Transfer Switch with Timer

2P 220V AC 63A Rated AHC30A 7-Day Timer
$33.11 / piece
MOQ: 5 pcs
IP65 Waterproof Dual Power Switch Distribution Box with Overload Protection

Dual Power Switch Distribution Box with Overload Protection

2P 63A ATS Integrated MCB Short-Circuit Guard
$32.40 / piece
MOQ: 5 pcs
Modular Enclosure HT Outdoor Waterproof Electrical Distribution Box

HT Outdoor Waterproof Electrical Distribution Box

5 to 18 Ways ABS + PC Housing IP65 Protection
$1.05 - $8.37 / pc
MOQ: 5 pcs
DC 600V 8-Way 1-In 1-Out 600V DC Photovoltaic Box

8-Way 1-In 1-Out 600V DC Photovoltaic Box

16A - 63A MCB DC SPD Included Dual Wire Terminal
$21.23 / piece
MOQ: 5 pcs
1000V Multi-String Solar PV Combiner Box 3-In 3-Out DC 1000V

Solar PV Combiner Box 3-In 3-Out DC 1000V

4P DC MCB 3P Surge Arrester String Isolation
$99.10 / piece
MOQ: 5 pcs
Complete Protection 4-String DC 1000V PV Combiner Box

4-String DC 1000V PV Combiner Box with Lightning Protection

18-Way Enclosure DC Fuse Protection IP65 Outdoor
$53.06 / piece
MOQ: 5 pcs
Lockable Enclosure 8-String Solar PV Combiner Box 1000V DC Pre-Wired

8-String Solar PV Combiner Box 1000V DC Pre-Wired

MCB Main Switch 3P SPD Included Key-Lockable Box
$239.21 / piece
MOQ: 5 pcs
Metal Enclosure 4-String Pre-wired PV Combiner Metal Case All-in-One

4-String Pre-wired PV Combiner Metal Case All-in-One

Heavy-Duty Steel DC MCB & Fuses Anti-Corrosion
$130.27 / piece
MOQ: 5 pcs
Steel Junction 6-In 6-Out Metal Solar Strings Combiner Box 1000V

6-In 6-Out Metal Solar Strings Combiner Box 1000V

1000V DC SPD gPV String Fuses Multi-Channel
$229.23 / piece
MOQ: 5 pcs

Why Source PV Combiner Boxes from Zhejiang TMB Electric Co., Ltd.

Photovoltaic combiner boxes are exposed to extreme environmental factors including high ambient temperatures, sustained DC arcs, and lightning surges. Zhejiang TMB Electric Co., Ltd. integrates decades of low-voltage manufacturing experience into every enclosure assembly.

Our solutions simplify rooftop and ground-mounted installation workflow by providing fully pre-wired string inputs, certified DC disconnects, lightning protection arresters, and touch-safe fuse holders that comply with international safety criteria.

IP65 Ingress Rating

Waterproof, dust-proof, and UV-stabilized polycarbonate or powder-coated steel enclosures for reliable outdoor service life.

Tested Surge Protection

Equipped with Type II DC surge protective devices (SPD) with visual fault indicators to suppress atmospheric overvoltages.

Pre-Wired & Tested

Internal wiring completed and 100% dielectric tested in factory, reducing project installation time and on-site wiring mistakes.

Download Complete Solar & Combiner Box Technical Data

Access wiring diagrams, dimensional drawings, and technical parameters for custom configurations.