Discontinued

Extech MA140

True RMS 300A AC Clamp Meter

The Extech MA140 is a compact AC Clamp Meter with NCV detector. This clamp meter takes true RMS measurements for accurate readings of noisy, distorted, or non-sinusoidal waveforms. The MA140 can measure up to 300 A AC. Complete with carrying case and two LR44 batteries.

Specifications

General
AC Current 60A, 300A
AC Current Basic Accuracy ±2.0%
AC Current Max Resolution 0.01A
Jaw Size 0.8" (22mm), conductors up to 300MCM
Non-Contact Voltage (NCV) Detector 80 to 600VAC
True RMS Yes
Additional Details
Certifications CE, UL, NIST
Dimensions 5.8 × 2.4 × 1.2" (147 × 60 × 31mm)
Power 2 × LR44 (1.5V) batteries
Safety Category CATIII - 600V
Warranty 2 years
Weight 4.9oz (140g)

Resources & Support

Certification

Extech MA140 Declaration of Conformity

User Manual

Extech MA140 User Manual

Datasheet

Extech MA140 MA145 Datasheet

Export Restrictions