Skip to content
Triplett Full Product Catalog: Volume 27 Now Available
en English
zh-tw Chinese (Traditional)en Englishfr Frenchde Germanhi Hindiit Italianja Japanesees Spanishvi Vietnamese
400A True RMS AC Clamp Meter (CM400)

400A True RMS AC Clamp Meter (CM400)

Free Shipping*
by Triplett Test Equipment & Tools
SKU CM400-NIST
614395003029
R 1,213.00 - R 3,359.00
R 3,359.00
R 1,213.00 - R 3,359.00
R 3,359.00
Version: With Cert of Traceability to N.I.S.T

Extended Lead Time: Up to 11 business days for NIST Calibration

Product Information

  • The Triplett Model CM400 True RMS Clampmeter can measure AC current up to 400A without breaking the circuit by clamping around a single conductor.
  • This saves time and the circuit will not be damaged.
  • True RMS provides better accuracy when measuring non-sinusoidal or noisy waveforms.
  • Additional measurements include Resistance, Capacitance, Frequency, Temperature, Diode Test, and Continuity.
  • Measurements can read on the 4000 count backlit LCD.
  • It has an Inrush current function that captures the instantaneous surge (inrush) current when power equipment is turned on.
  • Features include: Peak voltage capture with min/max, NCV Detector with LED, Relative/DC zero function, Auto power off, and a built-in flashlight.
  • Data Hold freezes the display for easy viewing.
  •  CAT III-600V safety category.
  • Includes 3 AAA batteries, test leads, Type K thermocouple probe, and carrying case.
  • 1-year warranty.

CM400-NIST Comes with Certificate of traceability to NIST standards 
Please add 11 business days lead-time for the NIST calibration process

        

CATEGORY: CLAMP METER

  • True RMS provides better accuracy when measuring non-sinusoidal or noisy waveforms
  • Captures the instantaneous surge (inrush) current when power equipment is turned on
  • 1.2" (30mm) clamp jaw
  • Low Pass Filter (LPF) for filtering frequency and harmonic interference when measuring variable frequency drives
  • Peak voltage measurement with Min/Max
  • Data Hold freezes the display
  • Relative Mode for making comparisons to a stored reference value
  • Auto power off with disable
  • Built-in Flashlight
  • Includes test leads, Type K thermocouple bead probe, 3 AAA batteries, and carrying case
  • 1 year warranty
  CM400 CM450
True RMS ✓ ✓
Display counts 4000 count 4000 count
AC Current 400A 400A
ACA Accuracy ±2.5% ±2.5%
DC Current — 400A
AC/DC Voltage 1000V 1000V
Resistance 40MΩ 40MΩ
Temperature -4 to 1832°F
(-20 to 1000°C)		 -4 to 1832°F
(-20 to 1000°C)
Capacitance 100mF 100mF
Frequency 100kHz 100kHz
Duty Cycle 20.0 to 80.0% 20.0 to 80.0%
Continuity <50Ω <50Ω
Lo Pass Filter (LPF) Yes Yes
NCV Detector >90V >90V
Inrush Current 100ms 100ms
Safety Category CAT III-600V CAT III-600V
Dimensions 8.8 x 3 x 1.6"
(223.8 x 76.5 x 39.4mm)		 8.8 x 3 x 1.6"
(223.8 x 76.5 x 39.4mm)
Weight 9.5oz (268.3g) 9.8oz (277.4g)
Datasheet
User Manual (PDF)
 Need Help? Our experts are here to help you 
Contact Us