Product Identification
Product Name3 to 1 MC4 Compatible Solar Branch Connector 1500V
BrandTreasol
Model3 to 1 Branch Connector 1500V
CategorySolar Branch connector
Solar Branch connector · Model 3 to 1 Branch Connector 1500V
3 to 1 MC4 Compatible Solar Branch Connector 1500V
Last updated: November 2026
Three strings become one home run. At 15 A per string the output totals 45 A, inside the 60 A rating of this 3F/M connector, which is 114.6 mm long, IP68 sealed and rated 1500 V DC for TÜV and UL.
1500 V DC
60 A
IP68
<0.5 mΩ
-40 °C to +85 °C
BrandTreasol
Model3 to 1 Branch Connector 1500V
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 1500V at a glance
What is the 3 to 1 MC4 Compatible Solar Branch Connector 1500V?
Three strings become one home run. At 15 A per string the output totals 45 A, inside the 60 A rating of this 3F/M connector, which is 114.6 mm long, IP68 sealed and rated 1500 V DC for TÜV and UL.
Voltage1500 V DC
Current60 A
ProtectionIP68
Product Overview
About the 3 to 1 MC4 Compatible Solar Branch Connector 1500V
Treasol 3 to 1 MC4-compatible branch connector turns three 1500 V DC strings into one home run. Three 15 A strings total 45 A, inside its 60 A rating; the body is 114.6 mm long and IP68 sealed.
Key Features
Three inputs into one moulded body; two field Y-joints disappear.
1500 V DC rated under TÜV and UL.
60 A combined output; three 15 A strings total 45 A.
Contact resistance below 0.5 mΩ.
PPE housing, UL 94 V-0, Safety Class II.
IP68 sealing, defined by the stated immersion test conditions.
Rated -40 °C to +85 °C ambient.
114.6 mm body; MC4-compatible interface to IEC 62852 (2014 + AMD1:2020).
Three strings usually means three home-run cables and two Y-joints that have to be sealed in the field. The 3 to 1 replaces that with one moulded body 114.6 mm long, so the parallel point is made once, at the factory, instead of twice on the roof.
Three ordinary strings sit comfortably inside the 60 A output: at 15 A per string the combined output is 45 A, leaving a quarter of the rating unused. Ratings are 1500 V DC under TÜV and UL, 12 kV test voltage, contact resistance below 0.5 mΩ. The PPE housing carries UL 94 V-0 and Safety Class II, and the assembly is IP68 sealed over -40 °C to +85 °C. Paralleling three strings raises the reverse-current question, though: a shorted string can be fed by the other two, so string-level overcurrent protection is still an array-design decision, not something the connector provides.
Technical Specifications
3 to 1 MC4 Compatible Solar Branch Connector 1500V technical data
Electrical, mechanical, material and environmental specifications for product selection and engineering review.
Rated Voltage1500 V DCPhotovoltaic DC system
Rated Current60 AMaximum rated current
ProtectionIP68Outdoor protection rating
Temperature-40 °C to +85 °COperating range
| Parameter | Value |
|---|---|
| Electrical | |
| Rated Current | OUTPUT Max 60 A |
| Rated Voltage | 1500 V (TÜV) 1500 V (UL) |
| Test Voltage | 12 kV (TÜV50HZ, 1 min) |
| Contact Resistance | <0.5 mΩ |
| Safety Class | II |
| Materials & Cable | |
| Insulation Material | PPE |
| Environmental | |
| Degree Of Protection | IP 68 |
| 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 1500V 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 1500V
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 1500V 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 1500V 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. It replaces two field-made Y-joints with one moulded body, which is the reason to use it rather than jointing cables on site.
What is the rated voltage?
1500 V DC under both TÜV and UL ratings. This model is part of the Treasol Series-2 branch connector range.
How is the output current calculated for three strings?
The inputs add: three strings at 15 A give 45 A at the output, inside the 60 A rating. Recalculate if the string current is higher, since the output figure is the sum and not a per-input allowance.
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 as part of the array design (IEC 62548, or NEC 690.9 in US installations). The connector carries current; it does not interrupt it.
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 the IP68 rating cover?
Dust-tight plus continuous immersion under conditions the manufacturer specifies, per IEC 60529. Correct mating and cable assembly are required for the seal to hold at all.
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.
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.
Can Treasol supply OEM versions?
Yes. Send the configuration, cable specification, technical requirements and estimated quantity to the sales team.
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Technical Guides
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Background reading on selection, installation and quality control for this product category.
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