T Branch Connector 4-in-1 for Solar PV Strings, 1000V 30A

The PV-EKB4 T branch connector merges four photovoltaic strings into one output with a 30A current rating and 1000V (TUV) voltage rating. Its IP67, PPO-insulated, tin-plated copper design supports reliable, weatherproof DC wiring in commercial solar arrays.

Model	PV-EKB4
Category	PV Connector
Standard	IEC 60068-2-52
Certification / Rating	1000V (TUV), 600V (UL)

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ModelPV-EKB4

CategoryPv Connectors, Solar Power Connectors

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of T Branch Connector

This T branch connector joins four PV branches into a single trunk. As a 4 in 1 out MC4 connector style solution, it reduces separate cable runs and keeps string wiring compact and tidy.

Four-to-one parallel merge: four branch ends feed one output, so one trunk cable carries the combined string current.
High voltage rating: 1000V (TUV) and 600V (UL), proven with a 6kV, 50Hz, 1-minute withstand test.
30A suitable current: tin-plated copper contacts with contact resistance below 0.5 mΩ limit heat build-up at the joint.
IP67 protection: sealed for outdoor rooftop and ground-mount exposure.
Safe insulation: PPO insulation material, UL 94-V0 flame class and safety class II.
Wide temperature range: operates from -40°C to +85°C.
Standard pin size: Φ4 mm pins for compatible solar DC cable assemblies.

Commercial Applications T Branch Connector

Installers choose this T branch connector to combine parallel PV strings before the inverter or combiner box in commercial and industrial solar projects. Anyone sourcing an mc4 connector 4 in 1 branch for large arrays will find it reduces wiring complexity.

Applications & Use Cases

Commercial rooftop PV: merging four parallel strings into one run to the inverter input.
Ground-mounted solar farms: compact branching in harsh outdoor conditions, rated IP67 and -40°C to +85°C.
Industrial and factory solar systems: a flame-retardant (UL 94-V0) branch point for DC cabling.
Array expansion and retrofits: adding strings in parallel without rebuilding the cable layout.

Technical Specifications of T Branch Connector

The table lists the verified electrical, material, and environmental data of the PV-EKB4 T branch connector, tested to IEC 60068-2-52.

Parameter	Value
Insulation material	PPO
Contact material	Copper, tin plated
Suitable current	30A
Rated voltage	1000V (TUV), 600V (UL)
Test voltage	6kV (TUV 50Hz, 1 min)
Contact resistance	< 0.5 mΩ
Degree of protection	IP67
Ambient temperature range	-40°C ~ +85°C
Flame class	UL 94-V0
Safety class	II
Pin dimensions	Φ4 mm
Standard	IEC 60068-2-52

Dimensions and Wiring of T Branch Connector

This T branch connector measures 108.5 mm in overall length and 85 mm across its four branches, with a 22 mm pitch between branches. Connect all four branches in parallel to the single trunk end, observing polarity (positive to positive, negative to negative), and keep the combined current within the 30A rating.