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Yellow 4-prong locking adapter plug L14-20P to L14-30R

Parkworld

Parkworld 884975 L14-20P to L14-30R Straight Blade Plug

SKU CH-SG15-2EF6N

Connects a 30 A L14-30 cord to a 20 A L14-20 generator outlet with 10 AWG copper conductors rated 125 V/250 V

  • Voltage (volts)125 V/250 V
  • Maximum amperage (amps)20
  • NEMA configurationL14-20P to L14-30R
  • Amperage20
  • Pole configuration4
  • Product colorYellow
  • Connects 20 A generator outlet to 30 A inlet
  • Rated 125 V / 250 V for dual-voltage use
  • Molded copper terminals resist oxidation for reliable contact
  • 10 AWG conductors support up to 30 A loading
  • Yellow housing with indicator light aids visibility

Generator adapter for transfer switches

The Parkworld 884975 adapter connects a generator equipped with an L14-20P 20 A locking plug to a transfer switch or panel that accepts an L14-30R 30 A locking receptacle. It carries a 125 V / 250 V rating and uses a 10 AWG copper conductor inside a yellow PVC housing. The unit is supplied new and tested to UL and cUL standards.

Suits owners of 20 A generators with L14-20 outlets

This adapter suits anyone who needs to feed a 30 A inlet on a home transfer switch from a generator that only provides a 20 A L14-20 outlet. It will not help if the generator lacks an L14-20 receptacle or if the installation requires a higher continuous current than the 20 A plug rating allows.

Verify outlet type and load before ordering

Confirm that the generator actually has a 4-prong L14-20P outlet and that the transfer switch or panel uses a matching L14-30R inlet. The adapter is limited to the 20 A maximum of the plug side, so the total connected load must stay within that limit. No cable length or mounting hardware is included.

How it compares

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Price $18.99
Typical for this category: the median of 547 items is $17.99.

Specifications

Product
Brand nameParkworld
Model nameNEMA L14-20P to L14-30R
Product colorYellow
Product typePlug Adapters
Power
Voltage (volts)125 V/250 V
Maximum amperage (amps)20
Amperage20
Size & build
Main materialPVC
More details
NEMA configurationL14-20P to L14-30R
Pole configuration4

Questions about this item

What outlet must my generator already have for the L14-20P plug on this adapter to connect?

The generator must provide a NEMA L14-20R 20 A 125/250 V locking receptacle so the adapter's L14-20P male plug can lock into it.

If I keep my existing L14-30 power cord, will the adapter's L14-30R receptacle accept its plug without modification?

Yes, the adapter's L14-30R female locking receptacle mates directly with any standard NEMA L14-30P 4-prong plug on your existing cord.

After wiring the adapter between my generator and transfer switch, how can I confirm the 125 V and 250 V circuits are both live?

The adapter includes a lighted indicator that illuminates when voltage is present on both hot legs, showing the 125/250 V supply is active.

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