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Red clamp meter model 3900 with CAT III 1000V CAT IV 600V ratings

TES Electrical Electronic Corp.

TES Electrical Electronic Corp. 3900 Clamp Meter CAT III 1000V CAT IV 600V

SKU CH-SD51-E6B1G MPN 3900

CAT III 1000V and CAT IV 600V rated clamp meter for safe high-voltage current measurement

  • TypeTest Equipment
  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • CAT III 1000V rating protects against high-energy transients
  • CAT IV 600V rating suits utility entrance measurements
  • 3900 model delivers true-RMS accuracy on distorted waveforms
  • Clamp jaw enables current checks without breaking the circuit
  • Red housing improves visibility in dim electrical panels

CAT III 1000V / CAT IV 600V Clamp Meter

The TES 3900 is a handheld clamp meter rated for CAT III 1000V and CAT IV 600V environments. It allows current measurement without breaking the circuit. The red instrument ships new in a single pack.

Who this suits and who it does not

Electricians and technicians working on high-energy three-phase systems or utility entrances will find the safety ratings appropriate. Users who only need basic continuity or low-voltage DC checks may prefer a simpler multimeter. Buyers requiring built-in temperature or power-quality logging should look elsewhere.

Safety category rating

The decisive specification is the dual CAT III 1000V and CAT IV 600V rating, which defines the transient withstand capability for the intended installation point. Confirm that your measurement location matches these categories before purchase.

Highlights

  • CAT III 1000V rating protects against high-energy transients
  • CAT IV 600V rating suits utility entrance measurements
  • 3900 model delivers true-RMS accuracy on distorted waveforms
  • Clamp jaw enables current checks without breaking the circuit
  • Red housing improves visibility in dim electrical panels

Specifications

BrandTES
Model3900
TypeTest Equipment
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

How does the CAT III 1000V / CAT IV 600V rating apply when I use the TES 3900 on a live panel?

CAT III 1000V means the meter is tested for transient protection on fixed installations up to 1000 volts; CAT IV 600V covers the higher-energy environment at the service entrance up to 600 volts.

What measurement standard does the clamp interface follow, and what does that limit in daily use?

The clamp uses a standard current-transformer jaw that reads AC current non-intrusively; the CAT ratings cap the maximum circuit voltage you may connect to, not the current range.

What physical clearance does the TES 3900 jaw need to close around a cable?

The jaw opening is designed for typical industrial conductors; check the cable diameter against the jaw specification before measuring.

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