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Portable 3 Prong to 2 Prong Outlet Adapter, Fireproof 392℉ 3-2 Prong Adapter Converter, Heavy Duty Wall Plug Adapter for Household Appliances Industrial, 1875W Max, 4 Packs
SerBion

SerBion Portable 3 Prong to 2 Prong Outlet Adapter

Bottom line: The SerBion Portable 3 Prong to 2 Prong Outlet Adapter: ETL certified with fireproof housing rated to 1382F; main trade-off: grounding only works if the outlet box itself is grounded.

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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

  • ✓ ETL certified with fireproof housing rated to 1382F
  • ✓ 1875W max capacity (125V, 15A) covers real appliances
  • ✓ Polarized blades enforce correct hot/neutral alignment
  • ✓ Metal grounding plate mounts under the outlet plate screw

Cons

  • ✗ Grounding only works if the outlet box itself is grounded
  • ✗ Requires unscrewing the cover plate for the ground tab
  • ✗ 1.69 in depth still adds bulk behind flush furniture
  • ✗ No surge protection or breaker built in

Manufacturer description

The SerBion 3 Prong to 2 Prong Outlet Adapter solves a problem every older home eventually hands you: a grounded appliance plug and a two-slot wall outlet. This four-pack of ETL-certified adapters is built from fireproof material rated to 1382F, and each unit handles up to 1875 watts at 125 volts and 15 amps, so it covers household appliances rather than just phone chargers and lamps. The polarized design is the part worth paying attention to. A polarized plug only seats one way, keeping neutral to neutral and hot to hot so the circuit's polarity stays aligned. A metal grounding plate mounts…

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SpecPicks Verdict

SpecPicks scored SerBion Portable 3 Prong to 2 Prong Outlet Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. SerBion'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

Does this adapter actually ground my appliance?

It provides a grounding path through the metal plate that mounts under your outlet's cover-plate screw. That only grounds the device if the wall box itself is grounded; ungrounded older boxes cannot be fixed by any adapter.

How much power can it handle?

Up to 1875 watts at a maximum of 125 volts and 15 amps, which covers most household appliances on a standard branch circuit.

Is it safe for high-heat use?

The housing is made of fireproof material rated to 1382F and the adapter is ETL certified. Stay within the 1875W rating and follow the appliance manufacturer's instructions.

What does polarized mean and why does it matter here?

A polarized plug inserts only one way, keeping neutral to neutral and hot to hot. That alignment is safer than a non-polarized adapter that can be flipped either direction.

How big is each adapter and how many come in the pack?

Each one measures 1.69 x 1.37 x 1.75 inches and the order includes 4 packs, so it fits behind furniture or in a travel bag with spares on hand.

Key Features

  • Superior Safety: SerBion polarized outlet splitter which is made of 1382℉ fireproof material and certified by ETL can improve durability and safety. Max Capacity Up to 1875 Watt(max 125 Volt, 15 A). The polarized design allows you to ensure the complete circle of electricity in a circuit
  • Grounded Protection: This three-prong to two-prong adapter plug has a metal grounding plate/terminal, which can be neatly installed under the outlet plate screw and provide appropriate grounding for safety. Even when the thick wire is inserted into the outlet adapter, it will not fall off, and it can be tightly inserted into the wall plug adapter
  • Polarized Plug: The three prong to two prong adapter is polarized, which is better than the non-polarized plug adapter, because the polarized plug only allows you to insert the plug into the socket slot from one direction, which ensures neutral to neutral, from hot to hot, and provides safety measures for the polarity alignment of electrical applia
  • Compact and Portable: With a compact size of 1.69 x 1.37 x 1.75 inches, this mini wall plug adapter is perfect for business trips or travel. It saves space and is particularly suitable for tight spots, such as behind couches, furniture, and more
  • Buy With Confidence: SerBion is committed to providing our customers with high quality products, we are dedicated to ensuring your fully satisfaction. Any issu, please feel free to contact us, we are always at your service! Please keep in mind that we always stand behind our product

Full Specifications

BrandSerBion
ColorIvory White
ModelFSA-01C
Amperage15 A
MaterialMetal, Plastic
Plug TypeType B
Dimensions1.69 x 1.37 x 1.75 inch
Unit Count4 Count
Part NumberFSA-01C
Material TypeMetal, Plastic
Product GradeCommercial
Connector TypePlug-in
Number Of Poles2
Number Of Wires5
Number of Poles2
Specification MetCE, CSA, NEMA, UL, cUL, cULus
Included ComponentsGrounding Outlet Adapter
Full listing titlePortable 3 Prong to 2 Prong Outlet Adapter, Fireproof 392℉ 3-2 Prong Adapter Converter, Heavy Duty Wall Plug Adapter for Household Appliances Industrial, 1875W Max, 4 Packs

Hardware benchmark data

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Portable 3 Prong to 2 Prong Outlet Adapter, Fireproof 392℉ 3-2 Prong Adapter Converter, Heavy Duty Wall Plug Adapter for Household Appliances Industrial, 1875W Max, 4 Packs 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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Portable 3 Prong to 2 Prong Outlet Adapter, Fireproof 392℉ 3-2 Prong Adapter Converter, Heavy Duty Wall Plug Adapter for Household Appliances Industrial, 1875W Max, 4 Packs
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