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Solar Branch connector · Model 4 to 1 Branch Connector 1500V

4 to 1 MC4 Compatible Solar Branch Connector 1500V

Last updated: November 2026

Four strings is where the 60 A output stops being generous: at 15 A per string it lands exactly on the rating. A 4F/M body 114.6 mm long, rated 1500 V DC under TÜV and UL, sealed to IP68.

1500 V DC 60 A IP68 <0.5 mΩ -40 °C to +85 °C
BrandTreasol
Model4 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.
4 to 1 MC4 Compatible Solar Branch Connector 1500V at a glance

What is the 4 to 1 MC4 Compatible Solar Branch Connector 1500V?

Four strings is where the 60 A output stops being generous: at 15 A per string it lands exactly on the rating. A 4F/M body 114.6 mm long, rated 1500 V DC under TÜV and UL, sealed to IP68.

Voltage1500 V DC
Current60 A
ProtectionIP68
Product Overview

About the 4 to 1 MC4 Compatible Solar Branch Connector 1500V

Treasol 4 to 1 MC4-compatible branch connector collects four 1500 V DC strings at one point. At 15 A per string the output reaches exactly 60 A, so the string current decides; 114.6 mm body, IP68.

Product Identification

Product Name4 to 1 MC4 Compatible Solar Branch Connector 1500V
BrandTreasol
Model4 to 1 Branch Connector 1500V
CategorySolar Branch connector

Key Features

Four inputs collected at one point instead of three separate joints.
1500 V DC rated under TÜV and UL.
60 A combined output — reached at 4 x 15 A, so verify string current.
Contact resistance below 0.5 mΩ.
PPE housing, UL 94 V-0, Safety Class II.
IP68 sealing under the stated test conditions.
Rated -40 °C to +85 °C ambient.
114.6 mm body; MC4-compatible interface per IEC 62852 (2014 + AMD1:2020).

Four strings per group is a common commercial-rooftop layout, and it is also the branch count where the 60 A output stops being generous. Four strings at 15 A already total 60 A, so this model suits 15 A-class strings and needs a check before it is specified for anything higher.

Electrical ratings are 1500 V DC under TÜV and UL, 60 A maximum at the combined output, 12 kV test voltage and contact resistance below 0.5 mΩ. The PPE housing is UL 94 V-0 and Safety Class II, sealed to IP68 across -40 °C to +85 °C. Because four strings are paralleled at one point, the reverse-feed path through a faulted string is real; string fusing or another form of overcurrent protection is an array-design requirement that sits outside the connector. The mating interface is MC4-compatible, to be checked against IEC 62852 (2014 + AMD1:2020).

4 to 1 MC4 compatible solar branch connector 1500V dimensional drawing, dimensions in mm
Dimensions in mm: overall length 114.6 mm and 116.5 mm across the two views shown.
Technical Specifications

4 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
ParameterValue
Electrical
Rated CurrentOUTPUT Max 60 A
Rated Voltage1500 V (TÜV) 1500 V (UL)
Test Voltage12 kV (TÜV50HZ, 1 min)
Contact Resistance<0.5 mΩ
Safety ClassII
Materials & Cable
Insulation MaterialPPE
Environmental
Degree Of ProtectionIP 68
Ambient Temperature Range-40 °C~ +85 °C
Flame ClassUL 94 V-0
Compatibility

MC4-compatible PV connection design

4 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: 4 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

4 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

4 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 4 to 1 solar branch connector?
It brings four PV strings together into one output at a single point, replacing three separate Y-joints. Four strings per group is a typical commercial-rooftop arrangement.
What is the rated voltage?
1500 V DC, rated under both TÜV and UL. Part of the Treasol Series-2 branch connector range.
Will four strings exceed the 60 A output?
It depends on the string current. Four strings at 15 A total exactly 60 A, which is the rating; four at 18 A would total 72 A and exceed it. Add the string currents before selecting this model.
Do I need string fuses with four inputs?
Usually, yes. With four strings in parallel, a fault in one string 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 connector against IEC 62852 (2014 + AMD1:2020) and its own datasheet, since the pair has to match on both dimensions and ratings.
What does IP68 mean here?
Dust-tight and protected against continuous immersion under the manufacturer's stated conditions (IEC 60529). It is not a blanket depth rating, and it depends on correct mating and assembly.
What is the housing material?
PPE, rated 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?
A 4 to 1 branch configuration with the F/M gender arrangement. Confirm the mating layout on the drawing or with Treasol before ordering.
Can Treasol supply OEM versions?
Yes. Send the configuration, cable specification, technical requirements and estimated quantity to the sales team.

Need 4 to 1 MC4 Compatible Solar Branch Connector 1500V 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.

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