Renogy Solar Y Branch Connectors MMF+FFM Pair

The Renogy Solar Y Branch Connectors MMF+FFM Pair are wiring connectors sold as a matched set (one male MMF and one female FFM) for connecting solar panels in parallel. Parallel wiring with these connectors keeps the array voltage consistent with the battery bank while combining panel output. The pair is rated for 50A continuous current and carries an IP67 protection rating when mated.

Parallel Wiring Without Voltage Mismatch

When solar panels are wired in parallel, each additional panel adds current without raising the array voltage. The Renogy Solar Y Branch Connectors are designed specifically for this configuration: the Y-branch geometry lets two panel leads combine into a single run to the charge controller, keeping the voltage at the level the battery bank expects. Getting this right matters because a voltage mismatch between the array and the battery can reduce charging efficiency or stress the charge controller.

IP67 Weatherproof Construction

The Solar Y Branch Connectors carry an IP67 protection rating when mated, meaning the connection is sealed against dust ingress and temporary water immersion. The insulation is PC/PA hard plastic with a UL94-V0 or UL94-5VA flame class rating, and the contacts are copper with silver plating. The operating temperature range of -40°F to +194°F covers the conditions a roof-mounted or ground-deployed solar array will see across seasons and climates.

Secure, High-Current Connection

The connectors are rated for 50A continuous current and withstand up to 1000V DC (TUV) / 600V (UL). At an unmating force of 147.51 Ft·lb, the connection resists accidental disconnection from vibration or cable movement, which matters for panels mounted on a vehicle or trailer. The silver-plated copper contacts keep contact resistance low for efficient current transfer.

Features

• Sold as a pair: one MMF (male) and one FFM (female) Y-branch connector included
• 50A rated current: supports high-output parallel solar panel configurations
• IP67 protection (mated): sealed against dust and temporary water immersion
• PC/PA hard plastic insulation: UL94-V0 or UL94-5VA flame class rating
• Silver-plated copper contacts: low contact resistance for efficient current transfer
• Wide temperature range: rated -40°F to +194°F

Specifications

Who This Is For and Isn't

The Renogy Solar Y Branch Connectors suit overlanders, van builders, RV owners, and cabin or off-grid system builders who are wiring two solar panels in parallel into a single cable run and need a weatherproof, high-current branch connection rated for outdoor use.

These connectors are compatible with Solar (MC4-style) connectors only and are not intended for series wiring configurations or for connector types other than Solar connectors. No cable, crimping tool, or additional hardware is included in the pair.

Common Questions

What does the MMF+FFM designation mean?

The Renogy Solar Y Branch Connectors come as two pieces: one MMF connector (male-male-female, branching two male inputs to one female output) and one FFM connector (female-female-male, branching two female inputs to one male output). Together the pair handles both the positive and negative legs of a parallel solar panel connection.

Are these connectors waterproof?

The Renogy Solar Y Branch Connectors carry an IP67 protection rating when mated, meaning the joined connection is sealed against dust and against temporary water immersion. The rating applies to the mated state; unmated connectors are not rated IP67.

What current and voltage are these connectors rated for?

The Renogy Solar Y Branch Connectors are rated for 50A continuous current and a withstanding voltage of 1000V DC (TUV) or 600V (UL), making them suitable for most residential-scale and off-grid parallel solar panel arrays.

What wire gauge do these connectors accept?

The Renogy Solar Y Branch Connectors do not include a compatible wire gauge specification in the available product data. Confirm wire gauge compatibility with Renogy before purchasing if your system uses an unusual cable size.

What is included in the package?

The package contains one pair of Renogy Solar Y Branch Connectors: one MMF connector and one FFM connector. No cable, crimping tool, or mounting hardware is included.