Will this work on 4/0 wire?

Yes I personally used it on 750MCM which is 5 times the diameter of 4/0. This is a great phase rotation meter.

Does it work on 480-V delta and wye systems?

Yes. It has worked perfectly on all systems and all voltages up to and including 480 for us. Excellent tool and much safer.

Will this work on the output of a VFD?

It should as long as the VFD is running (being commanded to go a direction at 50-60 HZ)

Can this be used on single phase 240 volt service?

Hi, phase sequence is only used to determine the correct phasing of the 3 phase supply. You need not use this device for single phase at all. You only need a volt meter to ensure that the supply is in order in terms of L N E.

480400 Phase R | Desertcart Congo

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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1216035Fr

Duties & taxes included

In stock

Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Congo.

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Description

⚡ Master the phase game with precision and power!

BUILT TO LAST - Double molded durable housing and wide-jaw alligator clips designed for rugged jobsite resilience.
EFFORTLESS SAFETY - No battery required, eliminating downtime and ensuring reliable operation whenever you need it.
WIDE VOLTAGE RANGE - Tests safely from 40 to 600 Volts AC, covering virtually all 3-phase power systems you encounter.
PRECISION AT A GLANCE - Large multiline LCD delivers clear, real-time graphical phase orientation and status for confident diagnostics.
PLUG PLAY CONVENIENCE - Comes complete with color-coded clips and pouch for organized, on-the-go testing—never miss a beat.

The Extech 480400 Phase Sequence Tester is a professional-grade tool designed for quick and accurate phase orientation checks on 3-phase power systems from 40 to 600VAC. Featuring a large graphical LCD, it visually displays phase sequence and live status without needing batteries. Its rugged double-molded housing and wide alligator clips ensure durability and ease of use, making it an essential device for electricians and engineers aiming for flawless power diagnostics.

Specifications

ASIN	B001AGTXY2
ASIN	B001AGTXY2
Batteries	1 Product Specific batteries required.
Brand Name	Extech
Color	480400
Compatible Devices	Devices with a power outlet or adapter that can provide 40 to 600 Volts AC and have a suitable port or adapter for the device's cable.
Country Of Origin	China
Country of origin	China
Customer Reviews	4.7 4.7 out of 5 stars (311)
Customer reviews	4.7 4.7 out of 5 stars (311)
Date First Available	1 January 2024
Global Trade Identification Number	00793950484005
Is Discontinued By Manufacturer	No
Item Dimensions	6.9 x 3.2 x 13 centimeters
Item Weight	0.14 Kilograms
Item model number	480400
Manufacturer	Extech
Manufacturer	Extech
Maximum Operating Voltage	600 Volts
Measurement Type	Phase Sequence Indicator
Minimum Operating Voltage	9 Volts
Model	480400
Part Number	480400
Power Source	Battery Powered
Product Dimensions	6.86 x 3.18 x 12.96 cm; 140 g
Specification Met	CE
Style Name	480400
UPC	798256210433 793950484005
Unit Count	1.0 Count
Upper Temperature Rating	150 Degrees Celsius

Reviews

D**M

Die im Lieferumfang enthaltenen Batterien sind bereits ausgelaufen... :( schlecht, wenn Ware so lange rum liegt ohne nachkontrolle

3.09.2021

A**A

Lo compre principalmente por qué permite hacer mediciones sin contacto con las partes energizadas basta con colocar la pinza sobre el aislamiento de los cables para que haga la medición de la secuencia de fases, cuenta con imanes qué permiten fijarlo. Lo recomiendo principalmente por la seguridad que birnda

8.02.2026

A**D

Great unit. Had one question that was promply addressed by product support.

7.06.2015

J**F

Great product. Definitely something any electrician or generator tech needs. Much safer than other roatation meter I had previously. Easy to use and accurate.

3.01.2026

A**R

Can't touch it for the price. Non contact is the best in today's safety focused industry. Also so much easier to hook up to an Mcc or panel feeder.

5.07.2019

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1216035Fr

Duties & taxes included

In stock

Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Congo.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

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The product quality is outstanding. Exactly what I needed for my work.