WEN Generator Parallel Kits: 30-Amp vs 50-Amp and What to Avoid

Best for
Pairs of 240V WEN inverter generators

The WEN 50-Amp 12000-Watt 240V Parallel Connection kit (GNA240i) is built for WEN’s 240V inverter generators. The listing is strict about compatibility: it works with 240V WEN inverter generators that have three parallel ports, and it is 240V only, so it will not work with 120V-only generators or 120V parallel ports. You plug its three pins into each generator and start both engines.

It is rated for up to 50A and 12000 watts, and its single outlet is a transfer-switch-ready NEMA 14-50R. That makes it a fit for feeding a home transfer switch during an outage, powering a 50A RV setup, or running a big event where several high-draw gaming rigs and lighting need a dedicated 240V feed. WEN also says the connection increases the wattage available on either connected generator’s own panel. The kit reaches up to 5.5 feet and stores its cables internally. Keep in mind the 12000 watt rating is the kit’s capacity; your actual output depends on the two generators you connect.

• For 240V WEN inverter generators with three parallel ports
• Rated for 50A and 12000 watts
• One NEMA 14-50R transfer-switch-ready outlet
• 5.5 ft reach with internal cord storage

Choose this kit only if both of your generators are 240V-capable WEN models. It gives way to the GNA36i for anyone running standard 120V inverters, which is the more common setup for camping and tailgating.

Best for
Two 120V WEN inverters for RV or camp

The WEN GNA36i 30-Amp 3600-Watt Parallel Connection kit is the everyday choice. WEN says it works with any two WEN inverter generators, which covers most people who own a pair of compact 120V units. It uses dual pins, one into each generator, and is rated for up to 30 amps and 3600 watts.

Its outlets are what make it popular with campers: one RV-ready TT-30R, the standard 30A RV plug, and one transfer-switch-ready L5-30R twist-lock. The listing says the connection also increases the wattage available at the outlets on either generator panel. It weighs 3.3 lbs, measures about 10.63 x 8.25 x 9.25 inches, reaches up to 5.5 feet and has internal cable storage. For a campsite LAN night, this setup can run a 30A trailer or feed a power strip network for a few PCs and screens, as long as your total load stays within the combined output of your two generators and the kit’s 30A rating. If you are building a quieter off-grid rig, our solar generator setup guide is an alternative worth considering.

• Works with any two WEN inverter generators
• Rated for 30A and 3600 watts
• TT-30R RV outlet and L5-30R twist-lock outlet
• 3.3 lbs with internal cord storage

Best for
Machinists needing thin vise parallels

The WEN 10380 20-Piece Precision-Ground 1/8-Inch parallel set is not a generator accessory. It is a machinist’s tool: 10 pairs of hardened parallel gauges that sit under a workpiece in a vise to raise it evenly and keep it flat. We include it only because it appears in searches for WEN parallels, and ordering it by mistake would leave you with no way to link your generators.

Each parallel is 6 inches long and 1/8 inch thick with holes for mounting, in widths from 1/2 inch to 1-5/8 inch in 1/8 inch steps. They are alloy steel and come in a hard-shell case that keeps them organized and protected from contaminants. They suit machinists, woodworkers and anyone calibrating equipment or aligning workpieces, such as a maker building custom arcade cabinets or PC case parts on a mill.

Best for
Machinists needing wider, thicker parallels

The WEN 10349 18-Piece Precision-Ground 1/4-Inch parallel set is the thicker sibling of the 10380, and again it is a machining tool, not a generator kit. It includes 9 pairs of hardened alloy steel parallels, 6 inches long and 1/4 inch thick, in widths from 3/4 inch to 1-3/4 inch, with a hard-shell case.

WEN says each block is machined to within two ten-thousandths of an inch of its stated size. The description calls it a 1/8-inch set in one line while giving a 1/4 inch thickness everywhere else, so treat 1/4 inch as correct based on the title and specs. Thicker parallels resist flexing under clamp pressure, which suits larger workpieces, while the 10380 reaches narrower widths.