MC4 Y-Branch 3-to-1 Branch Joiner Solar Connector Pair
MC4 Y-Branch 3-to-1 Branch Joiner Solar Connector Pair
MC4 Y-Branch 3-to-1 Branch Joiner Solar Connector Pair
Streamline your solar panel installation and maximise power output with the MC4 Y-Branch 3-to-1 Branch Joiner Connector Pair. Designed to combine the output of up to three solar panels into a single string, this connector reduces wiring complexity and simplifies array expansion — ideal for both professional installers and DIY enthusiasts.
Key Features
IP67 Waterproof & Dustproof: Premium PC/PA insulation with UV-resistant construction, built to perform in all weather conditions including extreme heat and heavy moisture.
Plug-and-Play Installation: Industry-standard MC4 snap-in locking mechanism for rapid, secure, tool-free connection — reducing labour time during array integration.
Optimised Energy Transfer: Tin-plated copper alloy contacts with low contact resistance (0.5mΩ) minimise energy loss and maximise power transfer from array to inverter.
Parallel Configuration: Efficiently links three solar panel strings into a single conduit — ideal for expanding system capacity without complex custom junction boxes.
Safety Compliant: Meets rigorous international standards including IEC and TÜV certification for long-term electrical safety and reliability.
Specifications
| Contact Material | Copper Alloy, Tin Plated |
| Insulation Material | PC/PA |
| Rated Current | 17A (1.5mm²), 22A (2.5mm²), 30A (4–6mm²) |
| Rated Voltage | 1000V DC (IEC), 600V (UL) |
| Test Voltage | 6kV (50Hz, 1min) |
| Contact Resistance | 0.5mΩ |
| Degree of Protection (Mated) | IP67 |
| Degree of Protection (Unmated) | IP2X |
| Temperature Range | -40°C to +90°C (IEC), up to +105°C |
| Flame Class | UL94-V0 |
| Locking System | Snap-in |
| Safety Class | II |
| Connector System | Ø4mm |
| Salt Mist Spray Test | Severity Degree 5 (IEC 60068-2-52) |