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Black and brown clamp meter with jaw open, test leads and case visible

Southwire 65031640 Clamp Meter 400A AC/DC 21530T Black/Brown electrical system tool

SKU CH-873M-DGPTF

Measures AC and DC current up to 400 A with True RMS accuracy and includes test leads, temperature probe, and carrying case

  • Team affiliation1 Piece
  • Key featuresClamp Meter, AAA batteries, Instruction manual, Test Leads,
  • Overall height1.4 L x 2.7 W x 9 H inches
  • Overall width1.4 L x 2.7 W x 9 H inches
  • Overall length1.4 L x 2.7 W x 9 H inches
  • Product weight0.6 lb (0.27 kg)
  • Measures AC/DC current up to 400A with True RMS accuracy
  • Compact design at 1.4 by 2.7 by 9 inches fits in tool bags
  • Weighs only .6 pounds for comfortable all-day carry
  • Includes test leads, Type K probe, case and AAA batteries
  • Built to EN 61010-1 safety standard for professional use

Southwire 400A AC/DC Clamp Meter

The Southwire 65031640 clamp meter measures AC and DC current up to 400 amps with True RMS accuracy. It includes test leads, a Type K temperature probe with banana plug adapter, a carrying case and AAA batteries. The handheld tool meets EN 61010-1 safety requirements.

Upgrade from basic testers

Replaces single-function ammeters or non-RMS multimeters that cannot capture distorted waveforms. The jump is worth it when troubleshooting variable-speed drives, HVAC compressors or automotive charging systems where harmonic content skews average-responding readings.

Fits a technician's daily kit

The compact 1.4 by 2.7 by 9 inch body weighs 0.6 pounds and slips into a tool bag or glove compartment. Battery power removes the need for mains access on site. The included case keeps leads and the temperature probe organised for the next job.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $81.99
Pricier than about 90% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameSouthwire
Product typeAmmeter
Size & build
Overall height1.4 L x 2.7 W x 9 H inches
Overall width1.4 L x 2.7 W x 9 H inches
Overall length1.4 L x 2.7 W x 9 H inches
Product weight0.6 lb (0.27 kg)
More details
Team affiliation1 Piece

Questions about this item

How wide is the jaw opening on the Southwire 65031640 clamp meter?

The meter body measures 2.7 inches wide and 1.4 inches deep, so the conductor must fit within that 2.7-inch span for the jaws to close fully.

What is the first step when installing the meter for a 400A AC/DC measurement?

Insert the three included AAA batteries, select the AC or DC current function, then press the zero button before clamping around a single conductor.

Which accessory will need replacement first under normal use?

The three AAA batteries power the meter and will require replacement before the test leads, Type K temperature probe or carrying case wear out.

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