Rich Solar Y Branch Parallel Connectors 4 to 1

The Rich Solar Y Branch Parallel Connectors 4 to 1 Combine Four Solar Panels in Parallel With a Plug-In, Weatherproof Connection

The Rich Solar Y Branch Parallel Connectors 4 to 1 let you wire up to four solar panels in parallel and send their combined output down a single pair of cables to your charge controller or power station. They plug straight into standard solar connectors, so there is nothing to cut, strip or crimp.

The connectors are rated for 30A and 1000V DC, carry an IP67 waterproof and dustproof rating, and work with 10 AWG or 12 AWG solar cable. Tinned copper contacts and PPO and PA insulation are built for demanding outdoor solar installs.

Rich Solar Y Branch Parallel Connectors 4 to 1 Features

4-to-1 Parallel Connection

The connectors combine four panel leads into one output. Parallel wiring keeps the panel voltage the same and adds the current of each panel together.

Low Contact Resistance

Rich Solar designs the connectors for low contact resistance, which helps keep the connection reliable and efficient as current from several panels passes through.

Plug-and-Play Installation

Connections go together and come apart quickly without special tools, so it is easy to add panels, move them or take a portable array apart.

IP67 Weatherproof Design

The IP67 rating protects against water and dust, and the connectors operate from -40°F to 194°F. They are built for roofs, decks, ground mounts and campsites.

30A and 1000V DC Rating

Rated for 30A and 1000V DC, the connectors suit parallel arrays of 12V or 24V panels as long as the combined current of all four panels stays within 30A.

Real-World Applications

RV and camper roofs. Combine four roof panels before running one pair of cables down to the controller.

Portable solar setups. Join four portable panels to charge a power station or battery.

Off-grid cabins. Combine panels on a ground mount or roof before the long run to the battery bank.

Expanding an array. Add panels to an existing system without replacing your main cable run.

How It Compares to Common Alternatives

Versus series wiring. Series wiring adds voltage and needs no branch connectors. Parallel wiring keeps voltage at the single-panel level, which suits PWM controllers and lower-voltage power station inputs, and it helps when one panel is shaded.

Versus stacking 2-to-1 connectors. You can chain several 2-to-1 connectors, but a single 4-to-1 connector set combines four panels with fewer connection points.

Versus the Y branch parallel adapters. Rich Solar also sells 4-to-1 Y branch parallel adapters (RS-Y4), rated for 20A with 12 AWG wire. These connectors carry a higher 30A rating and accept 10 AWG or 12 AWG cable.

Is This Connector the Right Fit

• Current. The combined short-circuit current of all panels must stay within the 30A rating. For example, four MEGA 100 panels at 5.78A each total about 23.1A, which fits, while four MEGA 200 panels at 11.6A each total about 46.4A, which is over the 30A rating.
• Matched panels. Panels wired in parallel should have similar voltage ratings.
• Wire size. The connectors are rated for 10 AWG or 12 AWG solar cable.
• Fusing. When combining panels in parallel, follow the panel's maximum series fuse rating and your controller manual for fusing.

This may be a good fit if

• You want to wire up to four solar panels in parallel
• Your panels and cables use MC4-compatible solar connectors
• You want a weatherproof, plug-in connection with no splicing
• You use a PWM controller or a power station with a low-voltage solar input

Common Questions

How Many Panels Can I Connect?

The 4-to-1 connectors combine up to four panels into a single output, as long as the total current stays within the 30A rating.

Do I Need Tools to Install Them?

No. They plug into standard solar connectors and can be connected and removed without special tools.

Are They Waterproof?

Yes. They carry an IP67 rating for protection against water and dust.

What's Included

• 1 x Set of Y Branch Parallel Connectors 4 to 1 (RS-T4)

Simple Parallel Wiring for Solar Panels

The Rich Solar Y Branch Parallel Connectors 4 to 1 give you a weatherproof, plug-in way to combine four panels into one output. At Outbound Power, we help customers plan series and parallel wiring for their solar arrays. If you have questions, our team is happy to help.