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Extech MA440 400A Clamp Meter with NCV

Extech Instruments
SKU: EXTEMA440
  • Non contact voltage detection available with 30mm jaw
  • 9 functions including AC/DC Voltage, Resistance & Capacitance
  • Includes backlit LCD screen and CAT III 600V safety rating
More Info
In Stock - Available Next Day

Extech MA440 400A Clamp Meter with NCV

The Extech MA440 400A Clamp Meter with NCV utilises a 30mm (1.2") jaw size to perform non-contact voltage detection tasks on 500MCM conductors. Featuring a large bright backlit LCD display, the MA440 includes a relative mode for capacitance, data hold option, auto-power off and low battery indicator. Capable of measuring AC current up to 400A, this easy-to-use instrument boasts a Max. Resolution of 1mA and a basic accuracy of ±2.0%.

Highly versatile, this 400A Clamp Meter offers the user 9 functions such as:

  • NCV
  • AC/DC Voltage
  • AC Current
  • Resistance
  • Capacitance
  • Frequency
  • Diode Test
  • Continuity

Ergonomically designed the Extech MA440 is battery powered, rated CAT III 600V and comes complete with test leads, three AAA batteries and a handy travel pouch. With 2 years warranty included, choose the right clamp for you from the Extech MA400 Series.

Key Features

  • Featuring a 30mm (1.2") jaw size fits to fit conductors up to 500MCM
  • AC Current: 400.0A (1mA)
  • Basic Current Accuracy: AC: ±2.0%
  • DC Voltage: 600V (0.1mV)
  • AC Voltage: 600V (1mV)
  • Basic Voltage Accuracy: AC: ±1.2% DC: ±0.8%
  • Non-Contact Voltage (NCV): 100 to 600V
  • Resistance: 40MΩ (0.1Ω)
  • Capacitance: 100μF (0.01nF)
  • Frequency: 1MHz (0.01Hz)
  • Includes a Duty Cycle feature
  • Comes with Diode/Continuity option
  • Dimensions: 228x77x41mm (9x3x1.6")
  • Weight: 9.3oz (265g)
  • Large backlit LCD display

Extech part number: MA440

Extech MA440 Series Comparison Table

Specifications MA440 (Max. Resolution) MMA443 (Max. Resolution) MA445 (Max. Resolution)
AC Current 400.0A (1mA) 400.0A (1mA) True RMS 400.0A (10mA) True RMS
DC Current - - 400.0A (10mA)
Basic Current Accuracy AC: ±2.0% AC: ±1.8% AC: ±2.5%, DC: ±2.0%
DC Voltage 600V (0.1mV) 600V (0.1mV) True RMS 600V (0.1mV) True RMS
AC Voltage 600V (1mV) 600V (1mV) 600V (1mV)
Basic Voltage Accuracy AC: ±1.2% DC: ±0.8% AC: ±1.2% DC: ±0.8% AC: ±1.2% DC: ±0.8%
Non-Contact Voltage (NCV) 100 to 600V 100 to 600V 100 to 600V
Resistance 40MΩ (0.1Ω) 40MΩ (0.1Ω) 40MΩ (0.1Ω)
Capacitance 100μF (0.01nF) 40mF (0.01nF) 40mF (0.01nF)
Frequency 1MHz (0.01Hz) 1MHz (0.01Hz) 1MHz (0.01Hz)
Temperature (Type K - meter range) - -40° to 1832°F/-40° to 1000°C (1°) -40° to 1832°F/-40° to 1000°C (1°)
Duty Cycle ✔ ✔ ✔
Diode/Continuity ✔ ✔ ✔
Dimensions 9x3x1.6" (228x77x41mm) 9x3x1.6" (228x77x41mm) 9x3x1.6" (228x77x41mm)
Weight 9.3oz (265g) 9.3oz (265g) 9.3oz (265g)
Specification
  • AC Current: 400.0A (1mA)
  • Basic Current Accuracy: AC: ±2.0%
  • DC Voltage: 600V (0.1mV)
  • AC Voltage: 600V (1mV)
  • Basic Voltage Accuracy: AC: ±1.2% DC: ±0.8%
  • Non-Contact Voltage (NCV): 100 to 600V
  • Resistance: 40MΩ (0.1Ω)
  • Capacitance: 100μF (0.01nF)
  • Frequency: 1MHz (0.01Hz)
  • Duty Cycle: Yes
  • Diode/Continuity: Yes
  • Dimensions: 9x3x1.6" (228x77x41mm)
  • Weight: 9.3oz (265g)