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4-in-1 15 Amp to 20 Amp T Blade Adapter, Nema 5-15P to 5-20R, 5-15P to 6-15R, 6-20R Plug Outlet, AC Power Adapter Converter, 15A 125V to 20A 250V
yeewenmo

yeewenmo 4-in-1 15 Amp to 20 Amp T Blade Adapter

Bottom line: The yeewenmo 4-in-1 15 Amp to 20 Amp T Blade Adapter: Combo receptacle accepts four plug types: NEMA 5-15, 5-20, 6-15 and 6-20; main trade-off: limited to 15A at 125V by the 5-15P plug, despite the 20A/250V receptacle labels.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Combo receptacle accepts four plug types: NEMA 5-15, 5-20, 6-15 and 6-20
  • ✓ Plugs into any standard NEMA 5-15R household wall outlet
  • ✓ Lets 5-20P T-blade plugs use a common 15A outlet without swapping cords
  • ✓ One-piece molded PVC body with no loose parts or exposed wiring
  • ✓ One adapter replaces several single-purpose plug converters

Cons

  • ✗ Limited to 15A at 125V by the 5-15P plug, despite the 20A/250V receptacle labels
  • ✗ Does not convert 125V to 250V; 6-15 and 6-20 devices receive only 125V
  • ✗ 20A-rated equipment cannot safely draw its full rated current through it
  • ✗ No surge protection, breaker or indicator light listed in the specs

Manufacturer description

The yeewenmo 4-in-1 T Blade Adapter lets a standard NEMA 5-15P household plug power equipment that has one of four plug styles. Its molded combo receptacle accepts NEMA 5-15, 5-20, 6-15 and 6-20 plugs. You can connect a tool, compressor or appliance that has a T-blade or tandem-blade plug to an ordinary wall outlet without changing its cord. Know the rating before you plug in. The adapter is rated 15A at 125V, and its 5-15P male end sets that limit. It does not raise the voltage or add amperage. A 250V-rated 6-15 or 6-20 device connected through it still gets only the 125V your outlet…

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SpecPicks Verdict

SpecPicks scored yeewenmo 4-in-1 15 Amp to 20 Amp T Blade Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. yeewenmo's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Will this adapter let me run a 240V appliance from a regular 120V outlet?

No. The adapter has a NEMA 5-15P plug rated 15A at 125V and does not convert voltage. A device with a 6-15 or 6-20 plug will receive only the 125V your outlet supplies, so use it only with equipment rated to run on 125V.

Which plug types fit into this adapter?

The combo receptacle accepts NEMA 5-15, 5-20, 6-15 and 6-20 plugs, including 5-20P T-blade plugs. The male end is a standard NEMA 5-15P that fits a common 15A household outlet.

Can I run a 20 amp tool through it?

Only if the tool actually draws 15A or less. The adapter is rated 15A at 125V, so the 20A receptacle shape does not give you 20A of capacity. Check the tool's nameplate amperage before connecting it.

What is the adapter made of?

The adapter is molded black PVC in one piece, with the 5-15P plug and the 4-in-1 receptacle built into the same body.

Does the yeewenmo adapter come with a warranty?

The product details do not state warranty terms. Check the current Amazon listing or contact yeewenmo for warranty coverage before you buy.

Key Features

  • 4-IN-1 AC Power adapter. Nema 5-15P 15-AMP male 125V to Nema 5-15R/5-20R/6-15R/6-20R ac adapter
  • Compatible 1: Nema 5-15P 15-AMP Male(125V) to Nema 5-15R 15-AMP Male(125V) Female ac adapter
  • Compatible 2: Nema 5-15P 15-AMP Male(125V) to Nema 5-20R 20-AMP Male(125V) Female ac adapter
  • Compatible 3: Nema 5-15P 15-AMP Male(125V) to Nema 6-15R 15-AMP Male(250V) Female ac adapter
  • Compatible 4: Nema 5-15P 15-AMP Male(125V) to Nema 6-20R 20-AMP Male(250V) Female ac adapter

Full Specifications

Brandyeewenmo
ColorBLACK
Plug TypeType A or Type B
Unit Count1 Count
Plug FormatType A or Type B
Compatible 1Nema 5-15P 15-AMP Male(125V) to Nema 5-15R 15-AMP Male(125V) Female ac adapter
Compatible 2Nema 5-15P 15-AMP Male(125V) to Nema 5-20R 20-AMP Male(125V) Female ac adapter
Compatible 3Nema 5-15P 15-AMP Male(125V) to Nema 6-15R 15-AMP Male(250V) Female ac adapter
Compatible 4Nema 5-15P 15-AMP Male(125V) to Nema 6-20R 20-AMP Male(250V) Female ac adapter
Model NumberEVM00TYPE2
Power SourceCorded Electric
Input Voltage125 volts
Output Voltage125 volts
Mfr Part NumberEVM00TYPE22
Number of Items1
Number of Outlets1
Full listing title4-in-1 15 Amp to 20 Amp T Blade Adapter, Nema 5-15P to 5-20R, 5-15P to 6-15R, 6-20R Plug Outlet, AC Power Adapter Converter, 15A 125V to 20A 250V

Hardware benchmark data

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4-in-1 15 Amp to 20 Amp T Blade Adapter, Nema 5-15P to 5-20R, 5-15P to 6-15R, 6-20R Plug Outlet, AC Power Adapter Converter, 15A 125V to 20A 250V is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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4-in-1 15 Amp to 20 Amp T Blade Adapter, Nema 5-15P to 5-20R, 5-15P to 6-15R, 6-20R Plug Outlet, AC Power Adapter Converter, 15A 125V to 20A 250V
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