UL is a global leader in testing, inspection, certification, auditing and validation. The UL Mark is the single most accepted Certification Mark in the United States, appearing on 22 billion products annually.
UL has tested this product to meet all the requirements under US and Canadian standards.
Tower Manufacturing GFCI Adapters Models: 30340001, 30439005, and 30440003.
By Tower Manufacturing Company
Tower Manufacturing’s GFCI Adapters offer OSHA required electrical safety for use with temporary electrical power. GFCI Adapters add shock protection to standard 15 AMP outlets. They are designed for indoor use only and are ideal safety solution for office breakrooms, workshops, labs, garages, and homes. They are small enough to carry in your tool box and offer 1 to 5 GFCI protected outlets.
All Tower’s GFCI Adapters are designed to automatically reset to 'On' position upon being plugged in or after a power interruption. All automatic reset GFCI’s must be manually reset after a ground fault occurrence.
Heavy Duty Commercial Grade Single Outlet Adapter, 3-Wire
Tower Manufacturing Model 30439005 Single Outlet Adapter, 3-Wire can be used to convert any standard indoor electrical outlet into a ground fault (GFCI) protected outlet.
This light weight, portable product can be used in the home, office, vacation cabin or workshop.
The bright 'Red' light indicates when the power is 'On'. The Test and Reset buttons allow for periodic testing.
Features:
-Compatible with 15 AMP two wire (without ground) or three wire (with ground) polarized plugs.
-Trip level 4-6 mA.
-UL and CUL listed.
-Automatic reset.
-Rated for indoor use only.
Specifications:
-Class 'A' people protection GFCI.
-Rated for 125 volt, 15 amp use.
-1875 watts, 60 Hz.
-LED Power 'On' indicator.
-Open neutral and ground neutral protection.
-Operating temperature range of negative 35 degrees Celsius to 66 degrees Celsius.
-Impact resistant case.
Similar Models:
Compare similar models from Tower Manufacturing in the chart below.
Heavy Duty Commercial Grade Single Outlet Adapter, 2-Wire
Heavy Duty Commercial Grade Single Outlet Adapter, 3-Wire
Heavy Duty Commercial Grade Five Outlet Adapter, 3-Wire
Automatic or Manual Reset:
Automatic Reset
Automatic Reset
Automatic Reset
Compatible with:
15 AMP 2 Wire Polarized Plug without Ground
15 AMP 2 Wire Plug without Ground or 3 Wire with Ground Polarized Plugs
15 AMP 2 Wire Plug without Ground or 3 Wire with Ground Polarized Plugs
Plug Type:
Nema 1-15P/1-15R
Nema 5-15P/5-15R
Nema 5-15P/5X 5-15R
LED 'Power On' Indicator:
Red ‘Power On’ LED Indicator Light
Red ‘Power On’ LED Indicator Light
Red ‘Power On’ LED Indicator Light
Testing:
TEST and RESET Buttons Allow for Periodic Testing
TEST and RESET Buttons Allow for Periodic Testing
TEST and RESET Buttons Allow for Periodic Testing
Trip Level:
4-6 mA
4-6 mA
4-6 mA
Certifications:
UL and CUL Listed
UL and CUL Listed
UL and CUL Listed
Rated for:
Indoor Use Only
Indoor Use Only
Indoor Use Only
Model:
30340001
30439005
30440003
Description
3 - wire GFCI single outlet adapter, 125 volt, 15 amp, UL and CUL listed. NEMA 5-15 P&R connections. UL rated for indoor use only. Red LED "POWER ON" indicator light. Automatic reset type GFCI.
Product information
Manufacturer
Tower Mfg Corp
Part Number
30439005
Item Weight
3.98 ounces
Product Dimensions
13.75 x 13.8 x 11 inches
Item model number
30439005
Is Discontinued By Manufacturer
No
Size
3-Prong
Color
Yellow
Style
Single Outlet
Material
Impact resistant Plastic
Voltage
125 Volts
Wattage
1875 watts
Item Package Quantity
1
Batteries Included?
No
Batteries Required?
No
Additional Information
ASIN:B00UOU6OVU
Customer Reviews: 4.6 out of 5 stars 247Reviews
Best Sellers Rank:
#96,115 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
#73 in Ground Fault Circuit Interrupter Outlets
#298 in Standard Electrical Outlets
Date First Available:March 12, 2015
Product Warranty: For warranty information about this product, please click here
Important information
Wattage :
1875 watts
Bulb Voltage :
125 volts
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Customer Questions
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Q:
Does this block the second outlet above it?
A:
No, it does not block the upper outlet. It''s a well designed product that I use during Chr…
adell1205|6 years ago
Q:
Can this adapter be used in the middle of a connection. Device cord goes into adapter, ex…
A:
Yes but you lose any protection between the wall and the adapter.
For example, if you are…
TJM|3 years ago
Q:
How much phantom power does it draw?
A:
About 2W/hour. I feel little bit warm to the touch
Long B Thai|2 weeks ago
Q:
Can I plug a 2 prong space heater into this "Tower unit" and plug the 3 prong "Tower unit"…
A:
Yes, you can plug a two or three prong electrical devices and still receive GFCI protectio…
Manufacturer
Harry R.|4 years ago
See all 25 answered questions
Customer reviews
4.6 out of 54.6 out of 5247 global ratings
Reviews with images
Top reviews from the United States
Ali Julia5.0 out of 5 starsVerified PurchaseAfter 5 months of use the verdict is....Reviewed in the United States on February 23, 2021Size: 3-Prong
I picked this plug because it is made in USA and it is UL listed. I have been using since October 2020, i.e. 5 months as I write this review. It is working without problems. The plug is very large, it is 5 inches long and 2 inches wide. It is bright yellow...
See more
I picked this plug because it is made in USA and it is UL listed. I have been using since October 2020, i.e. 5 months as I write this review. It is working without problems.
The plug is very large, it is 5 inches long and 2 inches wide. It is bright yellow color. I am using it in the bedroom with electric blanket, and I wish it was less ugly and noticeable, but I suspect most people run in the work room where how it looks does not matter.
When I plug it in the lower part of a two plug outlet, I am able to plug a small plug in the top outlet. When I lose power I need to manually reset it, as it turns off.
Instruction call for testing the plug every time you use it. To test you need to push the red button, which should trip (turn off) the plug. If it does not, don''t use it and is faulty.
The way a GFI works is to detect a mismatch between the current on the hot line and common line (due to leakage to the ground line, which is why it''s called a "ground fault"). This requires 3 connections. To protect against a short that simply draws too much current on a two-prong plug, you need a circuit-breaker. House circuit breakers will usually do a pretty job, but for me this plug is a bit of extra security based on a prior bad experience with an electric blanket.
Ali Julia review
8 people found this helpful
Helpful
ReportMatrixSnareUC5.0 out of 5 starsVerified PurchaseProtect yourself and your kegerator line cleaning setup!Reviewed in the United States on March 15, 2016Size: 3-Prong
This product rocks! I purchased it as part of my kegerator line cleaning setup (Google "beer line cleaning setup"). Just after running it for half an hour, I noticed just how dirty my lines were. My setup required this product to ensure safety since I was using...
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This product rocks! I purchased it as part of my kegerator line cleaning setup (Google "beer line cleaning setup"). Just after running it for half an hour, I noticed just how dirty my lines were. My setup required this product to ensure safety since I was using a submersible water pump and electricity. Those two things are usually not a good combo, but this product helped me construct something I could trust. With this outlet, I could rest easy knowing I was protected. I''m no electrician, but when a piece of equipment (such as my aquarium pump) tells you to purchase something like a GFCI outlet, you do so. Nothing is worth being electrocuted for. Especially when it isn''t that expensive. I paid full price for these items and I can assure you I’ll be purchasing another setup when I add taps and lines. If you’re like me, you have probably spent a good amount of money invested in your brewing equipment. You start at bottling, but now you’re kegging and need a reliable product to help see your liquid ingenuity through clean tubing and into your gullet. Well look no further when piecing together your line cleaning setup. You spend a lot of time on that liquid, so why not go the extra step and let this product help you maintain your system?
5 people found this helpful
Helpful
ReportAlissa C. Lenzinger5.0 out of 5 starsVerified PurchaseWorks how I need it toReviewed in the United States on March 30, 2022Size: 3-Prong
I have a high tech oven in a house that''s old as hell! I needed this to make everything work and so far so good.
Helpful
ReportPatrick O'Keeffe5.0 out of 5 starsVerified PurchaseGood for the priceReviewed in the United States on July 22, 2021Size: 3-Prong
My first one lasted four years of continuous use before it failed (could not reset after pressing test). The automatic reset is good for use with aquariums.
Helpful
ReportJohn driscoll5.0 out of 5 starsVerified PurchaseLife saver (potentially)Reviewed in the United States on December 13, 2018Size: 3-Prong
Needed this for a plug in my garage ceiling. The garage door opener plug was not gfi, which I was not aware of. So rather than installing a gfi outlet, I used this.
Helpful
ReportP. Tyndall5.0 out of 5 starsVerified PurchasePerfect for a workbenchReviewed in the United States on December 16, 2020Size: 3-Prong
Works great on my workbench.
Helpful
ReportBev5.0 out of 5 starsVerified PurchaseI''ve bought several of these, as I have many ...Reviewed in the United States on February 25, 2016Size: 3-Prong
I''ve bought several of these, as I have many parrots in my home. They really work well, as I accidently cut a small cord, it immediately cut all power. I wouldn''t be without them now, in any room.
Helpful
ReportEdgar5.0 out of 5 starsVerified Purchaseworks greatReviewed in the United States on November 13, 2020Size: 3-Prong
Works as intended!
One person found this helpful
Helpful
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