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2 String PV Combiner Box 1000VDC | HD Series with Fuse, SPD & Breaker
(1) 2 string pv combiner box for 1000VDC PV systems.
(2) Built-in dual DC fuses + Type 2 SPD + DC breaker (MCB) for surge and overcurrent protection.
(3) Outdoor IP65 / IK09 enclosure with PG cable glands, 2.5–16 mm² conductor capacity.
HD Series — 2 String PV Combiner Box 1000VDC
The HD Series 2 string pv combiner box is designed for dual PV string inputs in 1000VDC solar arrays. Each string is protected by a DC fuse, with a shared Type 2 SPD and a DC breaker (MCB) for safe isolation and surge protection.
See all available options on the PV Combiner Box landing page, and visit our manufacturer page for OEM capabilities. For switch-based models, explore the DC switch disconnector range. For quotations, contact us.
Key Features
- Topology: 2 string (2 in / 1 out)
- System Voltage: 1000V DC
- Protection Devices: 2 × DC fuses (typ. 16 A), Type 2 SPD (40 kA), DC breaker (MCB) (32 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; CE and
UL compliant (where applicable).
Technical Specifications
| Specification | Value |
|---|---|
| Series | HD |
| Input / Output | 2 strings (2 in / 1 out) |
| Max System Voltage | 1000V DC |
| Max Input Current | 16 A per string |
| Max Output Current | 32 A |
| Surge Protective Device | Type 2 SPD, 40 kA |
| Fuse | 2 × 10×38 mm DC fuses, typ. 16 A |
| Breaker | DC breaker (MCB), 32 A |
| Enclosure | PC, IP65 |
| Impact Resistance | IK09 |
| Dimensions | ~240 × 220 × 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
- Small residential PV arrays with two strings
- Commercial PV rooftops with breaker-based isolation
- Outdoor PV installations with IP65/IK09 requirements
See also: DC Fuses, Surge Protection Devices, DC Switch Disconnectors, DC Breakers.
FAQ
What is a 2 string pv combiner box?
A combiner box designed for two PV strings, integrating fuses, SPD, and a DC breaker for protection and isolation.
Does it include a breaker?
Yes, HD Series models use a DC breaker (MCB) instead of a switch disconnector.
Is it suitable for outdoor use?
Yes, with IP65 ingress and IK09 impact rating, the enclosure is built for outdoor environments.
Where can I find OEM/pricing?
Visit our manufacturer page or contact us for quotations.
Request a Quote
Provide your PV system specs and we’ll configure the HD-2/1 combiner box accordingly. Request a quote →
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