Product Identification
Product Name4 to 1 MC4 Compatible Solar Branch Connector 1000V
BrandTreasol
Model4 to 1 Branch Connector 1000V
CategorySolar Branch connector
Solar Branch connector · Model 4 to 1 Branch Connector 1000V
4 to 1 MC4 Compatible Solar Branch Connector 1000V
Last updated: November 2026
Four strings on one output, at the point where a 45 A rating stops being comfortable: four 15 A strings would total 60 A, a third over the limit. The 4F/M body is 96.4 mm long and 80.3 mm wide.
1000 V DC
45 A
IP67
<0.5 mΩ
-40 °C to +85 °C
BrandTreasol
Model4 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.
4 to 1 MC4 Compatible Solar Branch Connector 1000V at a glance
What is the 4 to 1 MC4 Compatible Solar Branch Connector 1000V?
Four strings on one output, at the point where a 45 A rating stops being comfortable: four 15 A strings would total 60 A, a third over the limit. The 4F/M body is 96.4 mm long and 80.3 mm wide.
Voltage1000 V DC
Current45 A
ProtectionIP67
Product Overview
About the 4 to 1 MC4 Compatible Solar Branch Connector 1000V
Treasol 4 to 1 MC4-compatible branch connector collects four 1000 V DC strings at one point. Four 15 A strings would total 60 A, so the string current decides; 96.4 mm body, 80.3 mm wide, IP67.
Key Features
Four inputs collected at one point instead of three separate joints.
1000 V DC rated under TÜV and UL.
45 A combined output — four 15 A strings would total 60 A, so check the current.
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, 80.3 mm wide, 20.5 mm pitch; MC4-compatible to IEC 62852.
The 4 to 1 collects four PV inputs before the run back to the combiner, replacing three Y-joints with one moulded body. It uses the 96.4 mm length shared across the long-body models, at 80.3 mm width — between the narrow 3 to 1 and the 100.8 mm 5 to 1.
Four ordinary strings do not fit inside 45 A: at 15 A each they total 60 A, a third above the rating. The model works with lower-current strings, where four inputs stay under 11.25 A each, so the string current has to be added up before it is specified. Ratings are 1000 V DC under TÜV and UL, an 8 kV test voltage and contact resistance below 0.5 mΩ. Housing is PPE, UL 94 V-0 and Safety Class II; sealing is IP67 (IEC 60529 IPX7), operating range -40 °C to +85 °C. With four strings paralleled, a faulted string can be back-fed by the other three, so string fusing or another form of overcurrent protection is an array-design requirement that the connector does not provide. Check the interface against IEC 62852 (2014 + AMD1:2020).
Technical Specifications
4 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
4 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: 4 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
4 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
4 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 4 to 1 solar branch connector?
It brings four PV strings together into one output at a single point, replacing three separate Y-joints. The body is 96.4 mm long and 80.3 mm wide, between the 3 to 1 and the 5 to 1.
What is the rated voltage?
1000 V DC, rated under both TÜV and UL. Part of the Treasol 1000 V branch connector range.
Will four strings exceed the 45 A output?
Usually, if the strings are ordinary ones. Four 15 A strings total 60 A, a third above the rating; the model suits strings that stay under about 11 A each. Add the string currents before selecting it.
Do I need string fuses with four inputs?
Usually yes. With four strings in parallel a fault in one can be fed by the other three. String-level overcurrent protection is sized to the array design standard (IEC 62548, NEC 690.9 in the US); the connector does not provide it.
Is it MC4 compatible?
The mating interface is MC4-compatible. Check the counterpart against IEC 62852 (2014 + AMD1:2020) and its datasheet, since the pair has to agree on dimensions and ratings.
What does IP67 cover?
IEC 60529 IPX7 is 30 minutes at 1 m depth under the stated conditions — not the continuous immersion of an IP68 part. The seal also depends on correct mating and cable assembly.
What is the housing material?
PPE, UL 94 V-0 and Safety Class II, so the DC side needs no protective earth.
What is the operating temperature range?
-40 °C to +85 °C ambient.
What does 4F/M mean?
4F/M denotes a 4 to 1 branch configuration with the F/M gender arrangement. Confirm the mating layout on the drawing or with Treasol before ordering.
When should a 1500 V connector be used instead?
A 1000 V circuit draws about 1.5 times the current of a 1500 V one at the same power, so four strings hit the 45 A ceiling sooner. The Series-2 models carry 60 A at 1500 V DC.
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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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