PV MC4 T Branch Connector 6-Way

Name: MC4 T Branch Connector 6-Way 50A - ETEK Electri
SKU: PV-EKB6

The PV-EKB6 MC4 T branch connector merges six solar strings into one output line. Rated 50A and 1000V (TUV), with IP67 protection and tin-plated copper contacts, it simplifies parallel PV wiring for commercial and utility solar installations.

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ModelPV-EKB6

CategoryPv Connectors, Solar Power Connectors

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of MC4 T Branch Connector

The PV-EKB6 MC4 T branch connector combines six branch ports with one common trunk port, so installers can join several PV strings in a single compact body. Key features include:

Six-way branching: six branch ports on a 22 mm pitch feed one common output port.
High current capacity: suitable current of 50A for parallel string wiring.
Voltage rating: 1000V (TUV) / 600V (UL), with a 6kV test voltage (TUV, 50Hz, 1 min).
Low contact resistance: below 0.5 mΩ with tin-plated copper contacts, which helps limit heat build-up at the joint.
Weather protection: IP67 degree of protection and an ambient temperature range of -40°C to +85°C for outdoor arrays.
Flame-retardant insulation: PPO insulation material with a UL 94-V0 flame class and safety class II.
Parallel wiring design: works as a solar panel parallel connector for strings of the same voltage, using Φ4 mm pin dimensions.

Commercial Applications of MC4 T Branch Connector

The MC4 T branch connector is designed for solar installations where several strings must be paralleled into one DC line before the next device in the circuit. It suits installers, EPC contractors, and distributors who need a compact, weather-sealed branching solution.

Applications & Use Cases

Commercial and industrial rooftops: paralleling PV strings ahead of the inverter or combiner input.
Ground-mounted solar farms: reducing the number of home-run cable runs by joining strings in the field.
Off-grid and hybrid PV systems: combining several panel strings into one feed for the charge or inverter stage.
Array expansion and retrofit: adding strings to an existing array without re-cabling the whole system.

Technical Specifications of MC4 T Branch Connector

The table below lists the verified electrical, mechanical, and environmental data of the MC4 T branch connector PV-EKB6. The product reference standard is IEC 60068-2-52.

Product model	PV-EKB6
Product type	Solar DC connector, 6-way T branch
Reference standard	IEC 60068-2-52
Insulation material	PPO
Contact material	Copper, tin plated
Suitable current	50A
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
Overall dimensions	108.5 mm × 129 mm
Branch pitch	22 mm

Dimensions and Wiring of MC4 T Branch Connector

The drawings below show both mating versions of the MC4 T branch connector with the single trunk port on one side and six branch ports on the other. The overall length is 108.5 mm and the overall height is 129 mm, with 22 mm between neighboring branch ports.

Overall length: 5 mm
Overall height: 129 mm
Branch port spacing: 22 mm (five intervals across six ports)

Wiring guidance for parallel strings

Confirm that all strings joined at the connector have the same open-circuit voltage; paralleling keeps the voltage constant and adds the string currents together.
Check that the combined current of all strings stays within the 50A rating and follow your local code for string fusing and protection.
Connect each string cable to one of the six branch ports and push until the housing is fully mated.
Connect the trunk port to the next device in the DC circuit, such as a combiner box or inverter input.
Inspect every mated joint to make sure the IP67 seal is fully closed before energizing the array.

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