Is nema 6-50 plug profitable to sell on Amazon United States?

The niche generates $167K/yr across 33 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is -8.4%. Flapen's verdict: Worth a look (57/100).

How competitive is the nema 6-50 plug niche?

17 brands and 65 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 60% of demand.

What do buyers complain about in nema 6-50 plug?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Defective Material/Parts. The return rate is 1.7%.

When does demand for nema 6-50 plug peak?

Demand is steady year-round — the busiest month runs 1.3× the quietest.

What does it cost to enter the nema 6-50 plug niche?

Listings span $8.35–$99.40; the average listing price is $21.40 (sweet spot $15–$100). The average incumbent carries 319 reviews — the moat a new listing must climb.

nema 6-50 plug

Worth a look

Shows a sweet-spot price point ($21.40 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Avg price

Great$21.40

avg listing price — sweet spot $15–$100

Price range

Great$8.35–$99.40

cheapest to priciest tracked listing — scored on the share inside $15–$100

Review moat

Great319.06

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.7%

return rate — above 5% kills the launch gate

Conversion

Great8.2%

search→purchase rate — share of searches ending in a sale

Brand share

Great60%

top-5 brand share — no brand owns this niche

Competition

Good45%

top-5 click share — leaders hold, buyers still browse

Market size

Okay$167K

$167K/yr · 96K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-8.4%

90-day search growth — must beat 0% to launch

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United States niche tracking, nema 6-50 plug is a $167K/yr Amazon United States market (96K searches/yr). The top 5 brands hold 60% of demand. Verdict: Worth a look — 57/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

nema 6-50 plug market data

Units sold / yr: 8K–10K; avg 100–250/product
Revenue / yr: $171K–$214K; units × avg price
Conversion rate: 8.2%
Avg BSR: #224
Page quality: 0%
Prime: 100%
Sponsored: 94%
Out of stock: 1.6%
Avg brand age: 48 months
Avg seller age: 177 days

Competition & brand share

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.

Brands

17 falling

Sellers

Top-5 brand share

60%

Top 20: 100%

Top-5 click share

45%

Top 20: 87%

Open market

33%

DEALTUS19%
ELEGRP12%
Suplevel11%
ThunderWay9%
ENERLITES8%
RVGUARD8%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.4% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.3×

Open Trend

Top nema 6-50 plug search terms

nema 6-50r13K/yr +18.8%6.0% conv.
nema 6-50p10K/yr +24.5%6.0% conv.
welder plug11K/yr -15.5%6.3% conv.
nema 6-5010K/yr -3.5%3.9% conv.
nema 6-50 plug12K/yr -32.0%6.4% conv.
6-50r8K/yr -14.8%4.6% conv.
6-50p7K/yr -25.3%8.7% conv.
50 amp welder plug5K/yr +3.4%6.0% conv.
welding plug5K/yr -9.5%4.5% conv.
220 welder plug5K/yr -12.0%4.6% conv.

All search terms

Top nema 6-50 plug products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

2-in-1 NEMA 6-30P/6-50P 30A/50A 250V ETL Welder Male Plug

DEALTUS$15.554.8★207 rev

ELEGRP NEMA 6-30P & 6-50P Heavy Duty Angle Plug 30/50 Amp 250V 3 Prong Power Plug for Welder/Generator Industrial Grade Grounding 2 Pole 3 Wire UL Listed 1 Pack

ELEGRP$11.204.7★1,899 rev

ThunderWay NEMA 6-30P & 6-50P Heavy Duty Angle Plug 30/50 Amp Plug 250V 3 Prong Power Plug for Welder/Dryer Industrial Grade 2 Pole 3 Wire UL Listed 1 Pack

ThunderWay$10.024.7★87 rev

RVGUARD 50 Amp Female Welder NEMA 6-50P Plug Welder Replacement ETL Listed

RVGUARD$15.374.6★339 rev

ENERLITES 50 Amp 250V NEMA 6-50R Power Outlet Heavy-Duty 50A Receptacle for Welders Plasma Cutters Electric Ranges Dryers and More 2-Pole 3 Wire 65500-BK Black

ENERLITES$9.784.7★509 rev

Newest

by launch date

NEMA 6-50P Pigtail Power Cord STW 6AWG/3C Replacement Hardwire Cable 4FT

Suplevel$46.414 rev

6mo ago

Suplevel NEMA 6-50 Welder Plug & Connector Set 50 Amp 3-Prong 250 Volt Heavy Duty 2-in-1 6-50P/6-30P Male Plug and 6-50R Female Receptacle with Easy Unplug Design Yellow ETL Listed

Suplevel$29.8821 rev

8mo ago

Suplevel NEMA 6-50 Welder Plug & Connector Set 50 Amp 3-Prong 250 Volt Heavy Duty 2-in-1 6-50P/6-30P Male Plug and 6-50R Female Receptacle with Easy Unplug Design Black ETL Listed

Suplevel$29.1921 rev

8mo ago

Suplevel 2-in-1 NEMA 6-50P/6-30P Plug 50 Amp 3-Prong 125/250 Volt Grounding Heavy Duty Universal Welder Power Male Plug with Easy Unplug Design Black ETL Listed

Suplevel$15.72152 rev

8mo ago

ThunderWay Flush Mounting Receptacle NEMA 6-50R 50A 250V 2 Pole 3 Wire Grounding Straight Blade Heavy Duty Industrial Grade Power Receptacle (6-50R)

ThunderWay$9.6168 rev

11mo ago

What buyers say about nema 6-50 plug

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall29%

“seems well made”

Advertised Vs Actual Product11%

“as advertised”

Value For Money11%

“Good Price”

Assembly/Installation9%

“Easy to set up”

Socket/Port/Plug8%

“Sturdy plug”

Ease Of Use5%

“Easy to use”

Efficiency4%

“Worked good for making up a extension cord for qelder”

Durability4%

“built to last”

Size-Overall3%

“Perfect fit”

Strength2%

“Well built”

What buyers complain about

Quality-Overall18%

“Looks cheap made”

Size-Overall16%

“wrong size”

Defective Material/Parts6%

“Electrical parts”

Rusts/Corrodes6%

“I was concerned about corrosion”

Functionality-Overall4%

“Faceplate issues”

Instructions/User Manual/Troubleshooting4%

“No instructions”

Material Quality2%

“Its made of plastic”

Value For Money2%

“or cost too much”

Ease Of Use2%

“Way too difficult to get wires inside”

Mounting2%

“Wished it had better wire terminals that you did not have to split strands on each side of mounting screw”

Top return reasons

Size-Overall38%

Compatibility-Overall17%

Advertised Vs Actual Product9%

Socket/Port/Plug9%

Defective Material/Parts5%

Functionality-Overall4%

Value For Money4%

Connectivity-Overall3%

Quality-Overall2%

Assembly/Installation2%

Common questions

Is nema 6-50 plug profitable to sell on Amazon United States?: The niche generates $167K/yr across 33 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is -8.4%. Flapen's verdict: Worth a look (57/100).
How competitive is the nema 6-50 plug niche?: 17 brands and 65 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 60% of demand.
What do buyers complain about in nema 6-50 plug?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Defective Material/Parts. The return rate is 1.7%.
When does demand for nema 6-50 plug peak?: Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the nema 6-50 plug niche?: Listings span $8.35–$99.40; the average listing price is $21.40 (sweet spot $15–$100). The average incumbent carries 319 reviews — the moat a new listing must climb.

nema 6-50 plug

nema 6-50 plug market data

Competition & brand share

Demand & seasonality

Top nema 6-50 plug search terms

Top nema 6-50 plug products on Amazon

Top sellers

Newest

Trending

What buyers say about nema 6-50 plug

What buyers love

What buyers complain about

Top return reasons

Common questions

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