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3 String PV Combiner Box 1000VDC | HD Series with Fuse, SPD & Breaker
(1) 3 string pv combiner box for 1000VDC solar PV systems.
(2) Equipped with 3× DC fuses + Type 2 SPD + DC breaker (MCB) for reliable protection.
(3) Rugged IP65 / IK09 PC enclosure, wall-mounted, PG glands for 2.5–16 mm² cabl
HD Series — 3 String PV Combiner Box 1000VDC
The HD Series 3 string pv combiner box is engineered for solar arrays requiring three string input protection up to 1000VDC. Each string is protected by a DC fuse, with additional Type 2 surge protection and a DC breaker (MCB) for circuit isolation and overload protection.
Explore other options on our PV Combiner Box landing page or visit the manufacturer page for OEM details. For switch-based alternatives, check DC disconnectors. For quotations, contact us.
Key Features
- Topology: 3 string (3 in / 1 out)
- System Voltage: 1000V DC
- Protection Devices: 3 × 10×38 mm DC fuses, Type 2 SPD (40 kA), DC breaker (32–63 A)
- Enclosure: Polycarbonate, IP65 ingress & IK09 impact rating
- Wiring: PG09 inputs, PG21 output; 2.5–16 mm² conductors
- Standards: SPD tested to
IEC/EN 61643-31; compliant with
CE and
UL.
Technical Specifications
| Specification | Value |
|---|---|
| Series | HD |
| Input / Output | 3 strings (3 in / 1 out) |
| Max System Voltage | 1000V DC |
| Max Input Current | 16 A per string |
| Max Output Current | 48 A |
| Surge Protective Device | Type 2 SPD, 40 kA |
| Fuse | 3 × 10×38 mm DC fuses, typ. 16 A |
| Breaker | DC breaker (MCB), 32–63 A |
| Enclosure | PC, IP65 |
| Impact Resistance | IK09 |
| Dimensions | ~260 × 230 × 110 mm |
| Cable Entries | PG09 inputs; PG21 output |
| Conductor Size | 2.5–16 mm² |
| Operating Temperature | −20 ℃ ~ +60 ℃ |
| Humidity | ≤ 99% |
| Altitude | ≤ 2000 m |
| Installation | Wall-mounted |
Wiring Diagram
Applications
- Residential and small commercial PV arrays with 3 strings
- Solar rooftops requiring breaker-based isolation
- Outdoor solar projects needing IP65 / IK09 protection
Related: DC Fuse, Surge Protective Devices, DC Switch Disconnectors, DC Breakers.
FAQ
What is a 3 string pv combiner box?
A combiner box designed for three PV strings, providing fuse, SPD, and breaker protection up to 1000VDC.
Does it use a breaker?
Yes, HD Series models integrate a DC breaker (MCB) for safe isolation, unlike HS models that use switch disconnectors.
What current ratings are supported?
Fuses are typically rated 16 A per string, while the breaker supports 32–63 A.
Is it outdoor rated?
Yes, the enclosure is IP65 ingress and IK09 impact rated, designed for outdoor solar systems.
Request a Quote
Send us your PV array specifications and we’ll configure the 3 string combiner box accordingly. Request a quote →
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