Product Identification
Product Name3 to 1 MC4 Compatible Solar Branch Connector 1000V
BrandTreasol
Model3 to 1 Branch Connector 1000V
CategorySolar Branch connector
Solar Branch connector · Model 3 to 1 Branch Connector 1000V
3 to 1 MC4 Compatible Solar Branch Connector 1000V
Last updated: November 2026
Three strings into one output, and the point where a 45 A rating lines up with 15 A strings: three of them total exactly 45 A. The 3F/M body is 96.4 mm long but only 59.6 mm wide, the narrowest of the long-body models.
1000 V DC
45 A
IP67
<0.5 mΩ
-40 °C to +85 °C
BrandTreasol
Model3 to 1 Branch Connector 1000V
Product TypeSolar Branch connector
- Minimum order quantity
- 1 piece
- Unit price range
- USD 2.00–3.00 per piece, depending on model and order quantity. Final pricing is quoted per order.
3 to 1 MC4 Compatible Solar Branch Connector 1000V at a glance
What is the 3 to 1 MC4 Compatible Solar Branch Connector 1000V?
Three strings into one output, and the point where a 45 A rating lines up with 15 A strings: three of them total exactly 45 A. The 3F/M body is 96.4 mm long but only 59.6 mm wide, the narrowest of the long-body models.
Voltage1000 V DC
Current45 A
ProtectionIP67
Product Overview
About the 3 to 1 MC4 Compatible Solar Branch Connector 1000V
Treasol 3 to 1 MC4-compatible branch connector combines three 1000 V DC strings into one output. Three 15 A strings reach the 45 A rating exactly; 96.4 mm body, 59.6 mm wide, IP67.
Key Features
Three inputs into one moulded body; two field Y-joints disappear.
1000 V DC rated under TÜV and UL.
45 A combined output — reached exactly at three 15 A strings.
Contact resistance below 0.5 mΩ.
PPE housing, UL 94 V-0, Safety Class II.
IP67 to IEC 60529 IPX7: 30 minutes at 1 m depth.
Rated -40 °C to +85 °C ambient.
96.4 mm long, 59.6 mm wide, 20.5 mm pitch; MC4-compatible to IEC 62852.
Three strings normally mean three home-run cables and two Y-joints sealed on site. The 3 to 1 replaces that with one moulded body 96.4 mm long. It shares that length with the 4 to 1 and 5 to 1, but at 59.6 mm it is the narrowest of the three, which matters where the rail spacing is tight.
Three strings at 15 A each total 45 A, exactly the output rating, with no margin left. That makes the 3 to 1 the model where the string current has to be confirmed rather than assumed. Electrical ratings are 1000 V DC under TÜV and UL, an 8 kV test voltage and contact resistance below 0.5 mΩ. The PPE housing carries UL 94 V-0 and Safety Class II, sealing is IP67 (IEC 60529 IPX7, 30 minutes at 1 m) and the operating range is -40 °C to +85 °C. Three paralleled strings also create reverse-feed paths, so string-level overcurrent protection remains part of the array design. Check the mating interface against IEC 62852 (2014 + AMD1:2020).
Technical Specifications
3 to 1 MC4 Compatible Solar Branch Connector 1000V technical data
Electrical, mechanical, material and environmental specifications for product selection and engineering review.
Rated Voltage1000 V DCPhotovoltaic DC system
Rated Current45 AMaximum rated current
ProtectionIP67Outdoor protection rating
Temperature-40 °C to +85 °COperating range
| Parameter | Value |
|---|---|
| Electrical | |
| Rated Current | OUTPUT Max 45 A |
| Rated Voltage | 1000 V (TÜV) 1000 V (UL) |
| Test Voltage | 8 kV (TÜV50HZ, 1 min) |
| Contact Resistance | <0.5 mΩ |
| Safety Class | II |
| Materials & Cable | |
| Insulation Material | PPE |
| Environmental | |
| Degree Of Protection | IP 67 |
| Ambient Temperature Range | -40 °C~ +85 °C |
| Flame Class | UL 94 V-0 |
Compatibility
MC4-compatible PV connection design
3 to 1 MC4 Compatible Solar Branch Connector 1000V uses an MC4-compatible mating interface. Final compatibility depends on the counterpart connector; check its datasheet and the applicable connector standard before installation.
Connector compatibility
Model: 3 to 1 Branch Connector 1000V
Product Type: Solar Branch connector
Compatibility Type: MC4-compatible solar cable connector
For safety and certification compliance, connectors from the same manufacturer and approved connector combinations should be used within the same PV connection system. Mixing connectors from different manufacturers should only be considered when compatibility has been verified and permitted by the applicable certification requirements.
Applications
Photovoltaic application scenarios
3 to 1 MC4 Compatible Solar Branch Connector 1000V is suitable for residential, commercial, utility-scale and compatible solar energy storage connection applications.
Residential Solar PV
Reliable cable connections for rooftop solar systems and residential photovoltaic installations.
Commercial & Industrial PV
Suitable for commercial rooftop systems and larger distributed PV installations requiring high-current connections.
Utility-Scale Solar Power Plants
Designed for high-voltage PV systems and large-scale solar installations where reliable outdoor connections are essential.
Solar Energy Storage
Can be used in compatible solar energy and energy storage connection applications according to system requirements.
FAQ
3 to 1 MC4 Compatible Solar Branch Connector 1000V frequently asked questions
Technical answers for product selection, cable matching and PV connection design.
What is a 3 to 1 solar branch connector?
It combines three PV strings at one point into a single output, replacing two field-made Y-joints with one moulded body. It shares the 96.4 mm body length with the 4 to 1 and 5 to 1, and is the narrowest of the three at 59.6 mm.
What is the rated voltage?
1000 V DC under both TÜV and UL ratings. Part of the Treasol 1000 V branch connector range.
How is the 45 A output used up by three strings?
The inputs add. Three strings at 15 A reach 45 A, exactly the rating, so no margin is left; three at 18 A would be 54 A and outside it. Confirm the string current before specifying this model.
Is it MC4 compatible?
The interface is MC4-compatible. Verify the counterpart against IEC 62852 (2014 + AMD1:2020) and its datasheet, because compatibility depends on both halves of the pair.
What does IP67 cover?
IEC 60529 IPX7 is 30 minutes of immersion at 1 m under the stated conditions. It is not IP68: continuous immersion is a separate grade with conditions set by the manufacturer.
What is the housing material?
PPE, UL 94 V-0 and Safety Class II. It insulates the current path and keeps its mechanical properties outdoors.
What is the operating temperature range?
-40 °C to +85 °C ambient.
Does combining three strings remove the need for fuses?
No. With three strings in parallel a fault in one can be fed by the other two, so string-level overcurrent protection is sized within the array design (IEC 62548, or NEC 690.9 in US installations). The connector carries current; it does not interrupt it.
What does 3F/M mean?
3F/M is the model code for a 3 to 1 branch configuration; F/M describes the gender arrangement. Check the drawing for the exact mating layout before ordering.
When should a 1500 V connector be used instead?
At the same power a 1000 V circuit draws about 1.5 times the current of a 1500 V one, so a 45 A ceiling is used up sooner. The Series-2 range carries 60 A at 1500 V DC.
Related Product Categories
Explore PV connection solutions
Navigate to related Treasol product categories for complete photovoltaic connection systems.
Technical Guides
Related reading
Background reading on selection, installation and quality control for this product category.
Need 3 to 1 MC4 Compatible Solar Branch Connector 1000V technical information or a quotation?
Send your cable size, required quantity, destination country and application so the suitable product configuration and documentation can be confirmed.