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Description
TPI-20A 3-Phase electrical test adaptor 5 pin 20ANote: This product is not a general purpose 3 phase adaptor it is only suitable for electrical testing in accordance with AS3760. Overview A 5 pin 20 Amp 3 Phase Adaptor for Earth Continuity and Insulation testing of appliances and leads. Works with both 4 and 5 pin (M) connections. TPI Overview Can be used with any appliance tester Users set the appliance tester to Class I test The adaptor allows the appliance tester to check insulation resistance
Note: This product is not a general purpose 3-phase adaptor - it is only suitable for electrical testing in accordance with AS3760.
Overview
A 5-pin 20 Amp 3 Phase Adaptor for Earth Continuity and Insulation testing of appliances and leads.
Works with both 4 and 5 pin (M) connections.
TPI Overview
- Can be used with any appliance tester
- Users set the appliance tester to Class I test
- The adaptor allows the appliance tester to check insulation resistance and earth continuity
- All phases and neutral are tested for insulation resistance simultaneously to earth
- For 4-pin appliances/extension leads, the neutral test is omitted
Capability Summary
The adaptor provides the following test capability*
- Earth continuity - Yes
- Insulation resistance - Yes
- Extension lead current leakage - No
- Appliance current leakage - No
- Polarity - Yes (L123/N only) - No
- RCD Trip Time/Trip Current - No
- Loop/Line Impedance - No
- Phase rotation/wiring - (L1-L1, L2-L2,L3-L3) - No
*Only in conjunction with suitable test instruments that have the required test functionality (not included):
Applications
- Testing of earth continuity and insulation resistance of 20A 3-Phase appliances
- Testing of earth continuity and insulation resistance of 20A 3-Phase leads
Checking 3 Phase Appliances
- The adaptor's 3-pin plug is connected to the appliance tester
- The 3-phase appliance is plugged into the female 3-phase socket of the adaptor
- The appliance tester's earth clamp/probe is attached to the metal body of the 3-phase appliance
- User selects Class I test on the appliance tester
- The appliance tester conducts the earth continuity test
- The appliance tester conducts the insulation resistance test
Checking 3 Phase Extension Leads
- The adaptor's 3-pin plug is connected to the appliance tester
- The 3-phase extension lead is plugged into the female 3-phase socket of the adaptor
- The appliance tester's earth clamp/probe is attached to the earth pin on the female socket of the 3-phase extension lead
- User selects Class I test on the appliance tester
- The appliance tester conducts the earth continuity test
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Excellent Sound Deadening Material!
Style: 10 SqFt, Style: 10 SqFt
I installed Kilmat Sound Deadening in my truck, and I’m extremely impressed with the results. The material is thick, pliable, and easy to cut to fit doors, floor panels. It sticks very well to metal surfaces and doesn’t peel, even after heating it slightly to make it more flexible. After installation, I immediately noticed a reduction in road noise and vibrations. Worth the money!!
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Reviewed in the United States on April 4, 2026
★★★★★ 5
A Must Have For Car Restorations!
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
I have been installing this matting in my 74 Datsun 260Z restore and very pleased with the ease of application and overall quality. My car has bedliner coating inside and this stuff sticks extremely well and is easy to trim and shape as well. I have just started installing it and using the rollers to work it in place but I can already tell a difference with just the little bit I have added....has reduced the resonance in the metal already. It's not a fast process but know it will be very rewarding once complete.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Makes For Quiet Rides
Model: 10 SqFt(0.95 SqM)
Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Must for subwoofers. True 2mm spec. High quality.
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
Let me start of by saying WOW! This made a huge difference in the SQ of my L7S pushing 930w rms. Before I had major rattles in my 2020 Honda Civic SI. Taking the time to do this to my trunk and Lid made me realize just how loud my subwoofer actually is. It literally eliminated the rattles throughout my whole car. I still plan on doing this to my doors and rear deck but once I upgrade the speakers. I still have half of the box just doing the trunk and lid so 1 box of 36sf will be enough for most of the areas that need to get done. You may need a little more overall. This is true 2mm spec. Very sticky and easy to apply. It just take time to finish the work correctly and roll it down. It is not as heavy as I thought it was going to be. The size of the sheets are perfect for what you need to do. The value is on point for the quality. It does not rip very easily but you can cut it to size without any problems. Again, This is a must buy for anyone who is pushing 1000w rms or more.
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Reviewed in the United States on November 29, 2025
★★★★★ 5
Quality product you
Model: 18 SqFt(1.7 SqM), Model: 18 SqFt(1.7 SqM)
Summary: Great quality product, priced right. Cuts and installs easy-follow the instructions people!! PRO TIP-you don’t need to cover every square inch. OVERKILL!! Think about it-when a bell rings you could put your fingers on the edge and silence it right? Same rules apply here. A strip or square will isolate the vibration and notice when placed correctly— knock on the surface and see what vibrates or what part makes the loudest drowning and that’s a good clue of where you should put a piece of this…unless you’re trying to use it for temperature insulation no need to go ape on it. If you look at the bottom of a stainless steel sink, it’s got a stripe or a small sticker of insulation that keeps it from rattling. You can do that here. What’s important to note is the instruction specifically say use a roller to roll the ribs out until it’s smooth that way you’ve got maximum adhesion. I see a lot of pictures and videos from people that finished their install and didn’t follow this simple instruction. It makes sure that it’s stuck down before you put all your paneling and carpet back in and it’s a small step with a cheap wooden roller it’s easy. I’ll say the installation with this product is a breeze. You can use sharp scissors or a blade. It does get gummy after a while, and you may need to clean off your blade or your scissors, but it cuts very well and the ribs make it easy to size in space the thickness is fantastic and the backing paper comes off quite easily. I’ve done lots of installations with Graphics emblems you name it and this product is very easy to use and represents good value.
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Reviewed in the United States on March 30, 2026
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