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Compact digital clamp meter in grey case with jaw and LCD display

aFe Power KC400 Digital Clamp Meter 400A 600V 2000 Counts

SKU CH-QA5D-JW0B4

A compact 5-in-1 clamp meter measuring 400A AC current, 600V AC/DC voltage, resistance, continuity and diodes with a 2000-count display and CAT III 600V rating

  • Team affiliation1 Piece
  • Key featuresClamp Meter, Test Leads, 1.5 V AAA Battery, Portable Case, C
  • Overall height9 L x 2 W x 16 H centimeters
  • Overall width9 L x 2 W x 16 H centimeters
  • Overall length9 L x 2 W x 16 H centimeters
  • Product weight280 g
  • Measures AC current up to 400A for automotive and household circuits
  • Checks AC/DC voltage to 600V with CAT III 600V safety rating
  • Tests resistance, continuity and diode polarity in one compact tool
  • Pocket-size body with backlit 2000-count display and auto power-off after 15 minutes
  • Ready to use with test leads, two AAA batteries and carry case included

5-in-1 Clamp Meter for Electrical Testing

The aFe Power KC400 is a digital clamp meter that measures AC current up to 400A, AC/DC voltage up to 600V, resistance to 20M, plus continuity and diode polarity. A single FUNC button switches functions for household circuit repairs, appliance testing, and automotive electrical work. The 2000-count display serves electricians and technicians who need a compact, battery-powered tool for daily measurements.

CAT III 600V Safety with Auto Power-Off

Rated CAT III 600V, the meter handles high-voltage applications within its specified limits. The backlight activates automatically when readings exceed 80V or 3A, and the 15-minute auto power-off preserves the two included AAA cells. Accuracy is stated as ±2.5% rdg+8 digits for AC current and ±0.5% rdg+5 digits for DC voltage, with a max-value lock for capturing peaks.

Palm-Sized Build with Test Leads Included

At 9 L x 2 W x 16 H centimeters and 280 grams, the clamp fits in a tool bag and reaches tight conductors without extra error from off-centre positioning. The package supplies the KC400 unit, two test probes, a user manual, and two AAA batteries so it is ready for immediate use. Buyers who need DC current measurement or capacitance ranges will find those functions absent on this model.

How it compares

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Price $32.99
Typical for this category: the median of 971 items is $30.99.

Specifications

Product
Brand nameaFe Power
Size & build
Overall height9 L x 2 W x 16 H centimeters
Overall width9 L x 2 W x 16 H centimeters
Overall length9 L x 2 W x 16 H centimeters
Product weight280 g
More details
Team affiliation1 Piece

Questions about this item

How do I install the batteries in the KC400 clamp meter, and what step do people often miss?

Open the battery compartment, insert two AAA cells matching the polarity marks, then close the cover; the step often missed is verifying the 15-minute auto power-off works after the first power-up.

What maintenance or replacement will the KC400 need over time?

Replace the two AAA batteries when the low-battery indicator appears; the test leads should be inspected for cracked insulation before each use and swapped if damaged.

What is the first measurement limit reached on the KC400 during sustained high-current work?

The AC current range tops out at 400 A; the 2000-count display will show OL once the conductor exceeds that level.

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