TY001NEW: 3-Part Pre-potted PV Junction Box (30A, for 500W+ Max. 750W High-Power Modules)
1. Superior Thermal Management for High-Current PV Modules
The Challenge: When solar panels exceed 500W, the operating current rises significantly. In a traditional 1-part solar module junction box, the heat from the three bypass diodes accumulates in one small space, raising the solar module junction box temperature and risking thermal runaway.
The Solution: TY001NEW mounts the three diodes independently at the end of the busbars. This physical separation prevents thermal coupling. Independent testing shows that the TY001NEW reduces the diode solar module junction box temperature by 10°C to 15°C compared to an equivalent 1-part box.
2. True"Solder-and-Go"for 3-Part Systems (Pre-potted Technology)
The Difficult Part: 3-part solar module junction boxes have smaller, narrower housings. Injecting silicone into these tiny compartments on-site is extremely difficult and often leads to air bubbles or incomplete filling.
The TY001NEW Advantage: We solve this problem for you. Using high-precision vacuum dispensing equipment, we inject high-thermal-conductivity silicone into each of the three mini-enclosures at the factory. The silicone fully encapsulates the diode pins, ensuring zero voids and perfect IP68 protection.
Production Benefit: Your production line only needs to solder the three boxes to the busbars. No potting stations, no curing ovens, and no QC time wasted on glue inspection.
3. Optimized for Bifacial & Large-Wafer Layouts (182mm/210mm)
Low Profile Design: The compact, low-height design of the TY001NEW minimizes the shadow cast on the rear side of bifacial modules, maximizing rear-side energy yield.
Flexible Soldering: The independent solar module junction boxes are designed to align perfectly with the busbar positions of half-cut cell technology used in M10 (182mm) and G12 (210mm) wafers.
Component Quality: Equipped with high-performance trench Schottky diodes to handle high forward current with low forward voltage drop.
4. Reduced Mechanical Stress
Compared to long, rigid 1-part boxes, the three independent TY001NEW units exert significantly less stress on the glass and backsheet during thermal cycling (TC200/TC400). This reduces the risk of micro-cracks in the laminate, enhancing the long-term reliability of large-format pv modules.
II. Technical Specifications ：
| Parameter | Value |
| Type | 3-Part (Split) |
| Potting Statue | Pre-Potted ( Factory Sealed ) |
| Rated Current | 20A / 25A / 30A |
| Max. System Voltage | 1500V DC |
| Applicable Module Power | 500W ~ 750W |
| Protection Grade | IP68 |
| Application Cable | 4.0 mm2 |
| Operating Temperature | -40℃ to +85℃ |
| Material | V0 Flame - Retardant PPO |
| Matal Material | Tinned Copper |
| Compliance | IEC 62790 /UL 373J |
III. Drawing... Solar Module Junction Box solar connection box for solar panel junction box price
| Representative Model | Structure | Potting Method | Max Current | Applicable Power | Core Advantages |
| PV-TY806 | One-piece | Pre-potting | 16A | ≤400W | Low cost, high efficiency, ready to use out of the box |
| PV-TY001NEW | Three-pieces | Pre-potting | 30A | ≥500W | High power, no potting process required, excellent heat dissipation |
| PV-TY002 | Three-pieces | On-site Potting | 30A | ≥500W | High versatility, flexible configuration |
Q1: Why is a 3-part solar module junction box better than a 1-part solar module junction box for high-power modules?
A: High-power modules (500W+) generate higher current and heat. In a 1-part solar module junction box , the three diodes are crowded together, causing heat concentration that degrades diode lifespan. A 3-part solar module junction box , like the TY001NEW, separates the diodes to the three busbar ends. This spreads the heat across the backsheet, keeping the junction temperature lower and ensuring the module survives hot-spot conditions safely.
Q2: What type of solar panel is the TY001NEW 30A version designed for?
A: The 30A version of the TY001NEW is specifically designed for the latest generation of high-efficiency panels. This includes:
Panels using 182mm (M10) or 210mm (G12) large silicon wafers.
Bifacial (double-glass) modules that require low-profile boxes to avoid rear-side shading.
Panels with a power output of 500W, 550W, 600W, or even 700W.
If your panel datasheet specifies an Imp (Maximum Power Current) above 20A, you should select the 30A version.
Q3: What is the difference between the TY001NEW (Pre-potted) and the TY002 (On-site Potting)?
A: The internal design and electrical ratings are nearly identical, but the manufacturing process is different.
TY001NEW (Pre-potted): Arrives at your factory fully sealed with silicone. You only need to solder. It offers the highest quality consistency and the fastest line speed.
TY002 (On-site Potting): Arrives empty. Your team must inject the silicone glue yourself and wait for it to cure.
Choose TY001NEW if you want to eliminate the risk of bubbling and speed up production. Choose TY002 if your factory has a mature automatic potting line and you prefer to manage the glue costs yourself.
Q4: Can the TY001NEW be soldered using automated equipment?
A: Yes. The three independent housings are designed with a stable rib structure that works seamlessly with automated soldering, hot-air welding, or laser welding machines. The compact design ensures precise alignment with the busbars on your assembly line.
Q5: Does the pre-potted gel inside the TY001NEW affect the soldering temperature?
A: No. We use a high-temperature-resistant silicone gel. The curing process of the gel is complete before shipping. It can easily withstand the brief high temperatures of the soldering or welding process without melting, expanding, or releasing gas.
Comprehensive score