Starlite Renewables is a trusted B2B MC4 connector supplier in Ahmedabad, Gujarat, offering a complete range of solar MC4 connectors including T2, T3, T4, T5, T6 branch connectors and fuse connectors from globally certified brands — Staubli, Amphenol Solar, and Bizlink. All connectors are individually inspected for quality and rated IP68 for outdoor solar PV applications.

MC4 Connector Types We Supply

1. T2 Branch MC4 Connector (Y Connector)

The T2 branch MC4 connector — also called a Y connector — combines two positive or negative strings into one cable. Ideal for parallel string connections in rooftop solar PV systems. Available in 30A / 1500V DC IP68 rated configuration.

2. T3 Branch MC4 Connector

The T3 MC4 connector branches three strings into a single output cable. Commonly used in ground-mount solar arrays where multiple string outputs need to be combined before feeding into the DCDB or inverter input.

3. T4 Branch MC4 Connector

The T4 MC4 connector is a 4-way branch connector for combining four solar strings in parallel. Used in large-scale rooftop and ground-mount installations to reduce cable runs and simplify BOS design.

4. T5 Branch MC4 Connector

The T5 connector branches five solar strings into one output. Used in utility-scale and commercial ground-mount systems where high string counts per inverter MPPT are standard.

5. T6 Branch MC4 Connector

The T6 MC4 connector is a 6-way branch connector for combining six parallel solar strings. Preferred in large commercial and utility solar installations with dense string configurations.

6. Inline Fuse MC4 Connector

Inline fuse MC4 connectors provide string-level overcurrent protection directly at the connector level — eliminating the need for a separate fuse holder. Available in 10A, 15A, and 20A fuse ratings for solar PV string protection per IEC 60269 standards.

Brands We Supply — Staubli, Amphenol & Bizlink MC4 Connectors

Starlite Renewables is an authorised supplier of MC4 connectors from three globally recognised brands:

Staubli MC4 Connectors (MC4-EVO, PV-KBT4)
Staubli is the original inventor of the MC4 connector and the global benchmark for solar connector quality. Staubli MC4 connectors are specified by tier-1 EPC companies and international solar developers. They are rated for 1500V DC systems, IP68, and tested to IEC 62852 standards. Starlite supplies Staubli MC4 connectors for premium solar projects across India.

Amphenol Solar PV Connectors (Helios H4)
Amphenol’s Helios H4 MC4 connector is a high-performance solar connector compatible with all standard MC4 systems. Rated 30A / 1500V DC IP68, UV-stabilised housing, and tool-based locking mechanism. Widely used in commercial and industrial rooftop solar systems.

Bizlink MC4 Connectors
Bizlink offers a cost-effective, IEC-certified MC4 connector solution for residential and commercial solar projects. Compatible with all standard MC4 mating connectors and available in standard and branch configurations.

Why Choose Starlite for MC4 Connectors?

✅ Individually Inspected — Every MC4 connector batch is quality-checked before dispatch. We do not supply unchecked bulk stock.

✅ Certified Brands Only — We supply only from Staubli, Amphenol, and Bizlink — no uncertified or counterfeit connectors.

✅ B2B Bulk Supply — We cater to EPCs, solar developers, OEMs, panel manufacturers, and integrators across India with competitive bulk pricing.

✅ Full Range Available — T2 to T6 branch connectors, inline fuse connectors, standard male/female pairs — all in stock from Ahmedabad.

✅ Fast Delivery Across India — Dispatched from Ahmedabad within 24–48 hours for standard orders. Bulk orders shipped via courier or transport.

✅ Technical Support — Our team helps you select the right MC4 connector type and configuration for your project BOM and solar array design.

MC4 Connector Applications in Solar PV

These connectors are used in every solar PV installation to make weatherproof, tool-lockable electrical connections between solar panels, cables, junction boxes, and inverters. Key applications include:

Rooftop Solar (Residential & Commercial): Standard male/female MC4 connectors for panel-to-panel and panel-to-string cable connections. T2 and T3 branch connectors for parallel string combining.

Ground-Mount Solar (Commercial & Utility): T4, T5, T6 branch connectors for high-density string combining. Fuse connectors for string-level overcurrent protection. Compatible with all DCDB and Array Junction Box (AJB) inputs.

Off-Grid & Hybrid Solar: T2 and T3 branch connectors for battery charging circuits and panel combining. Fuse connectors for battery bank protection.

PM Surya Ghar Yojana: All MC4 connectors supplied by Starlite are compatible with PM Surya Ghar scheme rooftop systems and meet IEC certification requirements for government scheme installations.

Frequently Asked Questions — MC4 Connectors

Q: What is an MC4 connector in solar?
A: An MC4 connector is a single-contact electrical connector used in solar PV systems to connect solar panels, cables, junction boxes, and inverters. The name “MC4” stands for Multi-Contact 4mm — referring to the 4mm contact pin diameter. MC4 connectors are rated for DC voltages up to 1500V, are IP68 weatherproof, and are tool-lockable to prevent accidental disconnection.

Q: What is the difference between T2, T3, T4, T5, and T6 MC4 connectors?
A: The number after “T” refers to how many strings the branch connector combines. A T2 combines 2 strings, T3 combines 3 strings, T4 combines 4 strings, and so on. Branch connectors are used when multiple solar strings need to be connected in parallel before feeding into a DC distribution box or inverter MPPT input.

Q: Are Staubli and Amphenol MC4 connectors compatible with each other?
A: Staubli and Amphenol MC4 connectors are both IEC 62852 compliant and mechanically compatible with standard MC4 systems. However, for safety and warranty compliance, it is always recommended to use the same brand throughout a single string to avoid any risk of arc faults from mismatched connectors.

Q: What current rating do I need for MC4 connectors?
A: Standard solar MC4 connectors are rated for 30A continuous current. For most rooftop and ground-mount solar string applications, 30A / 1500V DC IP68 connectors are sufficient. Inline fuse connectors are available in 10A, 15A, and 20A ratings for string-level protection.

Q: Do you supply MC4 connectors in bulk for large solar projects?
A: Yes. Starlite Renewables is a B2B MC4 connector supplier and caters to bulk orders for large rooftop, ground-mount, and utility-scale solar projects. Contact us at sales@starliterenewables.com or +91-8839388526 for bulk pricing and availability.

Q: Where are you located? Can I visit your office?
A: Our office is at B-302, Fairdeal House, Nr. Swastik Crossroads, Navrangpura, Ahmedabad – 380009, Gujarat. You are welcome to visit for product discussions and samples. Please call ahead to schedule a meeting.