Extech 480400 3-Phase Rotation Tester

Fits motor and feeder commissioning where you need a line-powered phase-sequence / rotation check on about 40–600 VAC, 15–400 Hz three-phase sources before connecting loads.

Key advantages

~40–600 VAC phase sequence — three-phase rotation checks on about 15–400 Hz sources.
Graphical LCD — clockwise / counter-clockwise plus live L1/L2/L3 status.
Line-powered — no battery required for indication.
CAT III 600 V — color-coded alligator leads and pouch case included.

Typical applications

Motor and feeder commissioning before connecting loads.
Verifying phase rotation on industrial three-phase sources.
Contractor kits needing a dedicated phase-sequence tester.

Selection guide

Type — Extech 480400 phase sequence / 3-phase rotation tester.
Voltage / frequency — About 40 to 600 VAC phase-sequence testing; about 15 to 400 Hz three-phase sources.
Display — Graphical LCD shows clockwise/counter-clockwise orientation and live L1/L2/L3 status.
Power — No battery required (line-powered indication).
Safety / leads — EN 61010 CAT III 600 V class; color-coded cables with large alligator clips; pouch case included.

Common mistakes

Using on sources outside about 40–600 VAC or 15–400 Hz — confirm supply class first.
Expecting battery operation — indication is line-powered; no battery required.
Treating CAT III 600 V as CAT IV bus work — match the measurement location to the category.
Confusing phase-sequence indication with a full power-quality analyzer — this unit is a rotation/phase-sequence tester.
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When to RFQ / what to tell us

Phase voltage and frequency vs about 40–600 VAC / 15–400 Hz.
Need for pouch/leads included vs spare clip sets.
Quantity, ship-to, and CAT III 600 V confirmation for the installation.

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Specs

Spec	Value
SKU	24313
Brand	Extech
Model	480400 3-Phase Rotation Tester
Product type	phaserotationtester
Type	Extech 480400 phase sequence / 3-phase rotation tester
Voltage range	About 40 to 600 VAC phase-sequence testing
Frequency	About 15 to 400 Hz three-phase sources
Display	Graphical LCD indicates clockwise/counter-clockwise orientation and live L1/L2/L3 status
Power	No battery required (line-powered indication)
Leads	Color-coded cables with large alligator clips; pouch case included
Safety	EN 61010 CAT III 600 V class phase tester
Document	Extech 480400 datasheet + UM + OEM netx-assets product photo

Documents

Extech 480400 product page / documentation — request the current OEM PDF on RFQ (no direct public PDF URL stored for this SKU).

FAQ

Q: What voltage and frequency does 480400 cover? A: About 40–600 VAC and about 15–400 Hz three-phase sources per the published range.

Q: Does it need batteries? A: No — line-powered indication; no battery required.

Q: What should I send for a quote? A: Voltage/frequency class, quantity, ship-to. Compatible with systems using Extech 480400 — we do not claim authorized-dealer status.

Parameter	Value
Display	LCD with L1/L2/L3 icons and clockwise/counter-clockwise R/L indicators
Nominal Voltage	40 to 600 VAC
Frequency Range	15 to 400 Hz
Nominal Test Current	1 mA per phase
Maximum Operating Voltage	600 V
Safety	IEC/EN 61010-1 Overvoltage Category III 600 V
Dimensions	130 × 69 × 32 mm (5.1 × 2.7 × 1.3 in)
Weight	130 g (4.6 oz)
Function	Detects phase sequence and rotation direction of three-phase systems