Rich Solar Y Branch Parallel Adapters 2 to 1

The Rich Solar Y Branch Parallel Adapters 2 to 1 Join Two Solar Panels Into One Output Without Tools or Splicing

The Rich Solar Y Branch Parallel Adapters 2 to 1 let you wire up to two 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 adapters are MC4 compatible, rated for 20A and 1000V DC, and carry an IP67 weatherproof rating. Tinned copper conductors and TPE and PPO insulation are built for RVs, campers, off-grid systems and portable solar setups.

Rich Solar Y Branch Parallel Adapters 2 to 1 Features

2-to-1 Parallel Connection

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

MC4-Compatible Connectors

The adapters use standard solar connectors that are MC4 compatible, so they plug into the panel leads and extension cables used across most Rich Solar systems.

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 adapters operate from -40°F to 194°F. They are built for roofs, decks, ground mounts and campsites.

20A and 1000V DC Rating

Rated for 20A and 1000V DC, the adapters suit smaller panels feeding one controller or power station, as long as the combined current of both panels stays within 20A.

Real-World Applications

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

Portable solar setups. Join two 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 adapters. 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 3-to-1 or 4-to-1 adapters. Larger adapters combine more panels, but if you only have two panels the 2-to-1 version keeps the wiring simple and compact.

Versus the Y branch parallel connectors. Rich Solar also sells 2-to-1 Y branch parallel connectors (RS-T2), rated for 30A with 10 AWG or 12 AWG wire. Choose the connectors when the combined current runs above 20A.

Is This Adapter the Right Fit

• Current. The combined short-circuit current of all panels must stay within the 20A rating. For example, two MEGA 100 panels at 5.78A each total about 11.6A, which fits, while two MEGA 200 panels at 11.6A each total about 23.2A, which is over the 20A rating.
• Matched panels. Panels wired in parallel should have similar voltage ratings.
• Wire size. The adapters are rated for 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 two 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 2-to-1 adapters combine up to two panels into a single output, as long as the total current stays within the 20A 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 Adapters 2 to 1 (RS-Y2)

Simple Parallel Wiring for Solar Panels

The Rich Solar Y Branch Parallel Adapters 2 to 1 give you a weatherproof, plug-in way to combine two 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.