TPX7-M Metal 6 String Solar Combiner Box DC1000V
6 Inputs / 1 Output · DC1000V · IP65, IK10 · Engineered to align with IEC 61439; protection components designed to IEC 60947-2, IEC 61643-31, IEC 60269-6
The TPX7-M is a DC1000V 6 string solar combiner box that combines six PV string inputs into one protected DC output. It integrates gPV string fuses, a Type 2 DC surge protection device and a DC output breaker inside an IP65, IK10 metal enclosure for commercial rooftop and ground-mounted solar systems.
Key Features Include:
- 6 PV string inputs combined into 1 DC output, rated DC1000V
- 15A per string (20A optional), 100A/125A total output current
- IP65 / IK10 cold-rolled steel enclosure, wall-mounted, 440×450×180 mm
- Pre-wired with DC MCB, Type 2 DC SPD, and gPV string fuses
6 String Solar Combiner Box Descriptions
The TPX7-M 6/1 is a metal 6 string solar combiner box that combines six PV string inputs into one DC1000V output. Its standard configuration integrates string-level gPV fuses, a Type 2 DC surge protection device and an output DC circuit breaker, providing centralized overcurrent protection, surge protection and circuit isolation.
The IP65, IK10 cold-rolled steel enclosure is designed for outdoor commercial rooftop, solar carport and ground-mounted PV systems where additional mechanical protection is required. Standard input fuse ratings are 15A, with 20A options available according to the PV string design. The combined output can be configured with 100A or 125A protection after the string current, busbar and cable requirements are confirmed. MC4 connectors or PG cable glands are available.
For projects requiring greater corrosion resistance, stainless-steel enclosure options can be supplied. The TPX7-M series is also available with different string configurations and voltage ratings up to DC1500V to meet larger PV system requirements.
Compare DC600V and DC1000V combiner boxes to evaluate voltage ratings, string configurations and project wiring requirements.
TPX7-M 6 In 1 Out Technical Specifications
| Parameter | Value |
|---|---|
| Model | TPX7-M 6/1 |
| String Configuration | 6 inputs / 1 output |
| Rated Voltage Ue | DC1000V |
| Max Input Current per String | 15A (20A optional) |
| Max Output Current | 100A / 125A |
| Enclosure Material | Cold-rolled steel |
| Protection Level | IP65 |
| Impact Level | IK10 |
| Operating Temperature | -35°C to +70°C |
| Relative Humidity | ≤95% |
| Cable Connection | MC4 or PG |
| Installation | Wall mounting |
| Max Altitude | 2,000 m |
| Dimensions (L×W×H) | 440×450×180 mm (±2 mm) |
| Reference Standards | IEC 61439 (assembly); IEC 60947-2 (DC MCB); IEC 61643-31 (DC SPD); IEC 60269-6 / UL 248-19 (PV fuse); IP65 per IEC 60529 |
Built-in Protection Components
| Component | Key Ratings |
|---|---|
| DC MCB | Ue DC1000V, Ui DC1500V, In 32A, Icu 6kA — IEC 60947-2 |
| DC SPD (Type 2) | Ue DC1000V, In (8/20μs) 20kA, Imax 40kA, Up 3.6kV — IEC 61643-31 |
| gPV Fuse | DC1000V, 15A, 10×38 mm — IEC 60269-6, UL 248-19 |
TPX7-M Series Model Selection (4–32 Strings)
| Rated Voltage Ue (V)：1000V DC/1500V DC | ||||
| TYPE | Strings | Maximum input current per string (A) | Maximum output current per string (A) | Dimension (without mounting connector) |
| TPX7-M 4/1 | 4 input 1 output | 30A | 125A | 440*450*180mm |
| TPX7-M 6/1 | 6 input 1 output | 30A | 125A | 440*450*180mm |
| TPX7-M 8/1 | 8 input 1 output | 30A | 250A | 550*510*180mm |
| TPX7-M 10/1 | 10 input 1 output | 30A | 300A | 550*510*180mm |
| TPX7-M 12/1 | 12 input 1 output | 30A | 320A | 650*460*180mm |
| TPX7-M 14/1 | 14 input 1 output | 30A | 320A | 700*510*180mm |
| TPX7-M 16/1 | 16 input 1 output | 30A | 400A | 750*610*220mm |
| TPX7-M 18/1 | 18 input 1 output | 30A | 500A | 850*610*220mm |
| TPX7-M 20/1 | 20 input 1 output | 30A | 630A | 950*610*220mm |
| TPX7-M 22/1 | 22 input 1 output | 30A | 630A | 950*610*220mm |
| TPX7-M 24/1 | 24 input 1 output | 30A | 630A | 950*610*220mm |
All models share IP65/IK10 cold-rolled steel enclosures and pre-installed DC protection (MCB, Type 2 SPD, gPV fuses).
Per-string ratings up to 30A and configurations beyond the table are available as custom builds. Contact us with your string design.
Configure Your 6 String Solar Combiner Box
Send us your PV module datasheet, string voltage and current, inverter model, cable size and required quantity. TYPLE will help confirm the appropriate gPV fuse, Type 2 SPD, output breaker and enclosure configuration. Custom wiring, component selection, stainless-steel enclosures and OEM labeling are available. Receive configuration recommendations, pricing and lead-time information within 24 hours.
What's Inside the 6 String Solar Combiner Box
- Enclosure (Customizable): Cold-rolled steel housing, stainless steel 201, or stainless steel 304 — selectable to match site corrosion and environmental conditions.
- DC Disconnect Switch: Safely disconnects and isolates the DC circuit for maintenance. Depending on the project design, a 100–125A MCB or a 125–630A MCCB is fitted.
- Surge Protection Device (DC SPD): Limits transient overvoltage during electrical surges such as lightning strikes or switching events, protecting downstream equipment.
- Grounding: Centralises all grounding terminations into a reliable common earth, simplifying wiring and maintenance while improving safety and surge performance.
- Copper Busbar: Consolidates multiple circuits into a single common conductor. Solid copper construction reduces connection points, and tin plating adds corrosion resistance.
- Fuse (gPV): Quickly interrupts the DC circuit under overcurrent or short-circuit conditions, protecting cables and equipment from damage.
- Cable Entry (MC4 / PG Gland): MC4 connectors suit standard PV string cables for fast plug-in connections; PG waterproof glands accommodate custom cable diameters. Both options are rated IP67, ensuring no weak point at cable entry.
- Cable Marking: Neat cable routing with full labelling for quick, error-free connections and easier maintenance.
- Pre-Wired & Tested: Each combiner box is internally wired to the design specification and factory-tested before dispatch.
6 String Solar Combiner Box Applications
- Commercial & Industrial Rooftop: The primary application for the TPX7-M 6/1: factory and warehouse rooftop arrays in the 30–150kW range, where 6-string grouping per combiner simplifies DC-side wiring to the inverter.
- Ground-Mounted and Carport Systems: The IK10 steel enclosure withstands mechanical impact in open-field and parking-structure installations, as proven in the 120kW Île-de-France carport project.
- Off-Grid and Microgrid Systems: IP65 sealing and wide temperature tolerance suit remote and harsh-climate deployments common in the Middle East and Africa.
OEM Customization for 6 In 1 Out PV Combiner Boxes
TYPLE offers flexible OEM and ODM services for PV combiner boxes, including custom string configurations, enclosure branding, and component selection. Backed by the Liushi low-voltage electrical supply hub, we deliver customized solutions with short lead times.
For the TPX7-M series, common customizations include:
- String configurations from 4 to 32 inputs, DC500V to DC1500V
- Per-string input ratings up to 30A for high-current module designs (custom configuration)
- Component substitution (breaker/fuse ratings, SPD class, monitoring modules)
- Enclosure logo printing and custom labeling for private-label orders
- MC4 or PG gland cable entry, pre-wired and factory-tested before shipment
How the 6 In 1 Out PV Combiner Box Works
Six PV strings enter the combiner box through separate DC inputs. Each input passes through a gPV fuse before the six circuits are connected to a common DC busbar. The Type 2 SPD provides surge protection, while the output breaker allows the combined circuit to be isolated before the DC cable runs to the inverter.
The connected PV strings should have compatible voltage and current characteristics and must match the inverter’s DC input and MPPT design. Fuse, breaker, busbar and cable ratings must be selected according to the module data, string layout and applicable electrical requirements.
Frequent Asked Questions
Each string input is rated 15A as standard, with a 20A option available. Total output current is 100A or 125A depending on configuration.
Yes. The steel enclosure is rated IP65 against dust and water and IK10 against impact, with an operating range of -35°C to +70°C, suitable for desert, tropical, and cold-climate installations.
Yes. A Type 2 DC SPD rated In 20kA / Imax 40kA (8/20μs) at DC1000V is pre-installed, alongside DC MCBs and gPV string fuses.
Yes. The TPX7-M series supports 4 to 32 string inputs and voltage classes from DC500V to DC1500V through OEM customization.
Yes. Per-string ratings up to 30A are available as custom configurations, with fuses, breakers, and output busbars upgraded to match. Send your string design for a tailored proposal.
TPX7-M uses a cold-rolled steel enclosure for C&I and utility-scale projects; TPX7-P uses a PC+ABS plastic enclosure for residential and light commercial systems.
Lead time depends on the configuration and order quantity. Send your project specs and you will receive a quotation with a confirmed delivery date within 24 hours.
“6 in 1 out” means the box accepts six individual PV string inputs and combines them into one DC output. Each input string is normally protected separately before the current reaches the common busbar and output protection device.
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