3280-70F - AC Clamp Meter 1000 A with Flexible Current Sensor up to 4200 A

Clamp meter for AC currents to 1000 A with flexible current sensor to 4200 A, voltage measurement to 600 V AC/DC, CAT IV 300 V (current) and CAT III 300 V (voltage), 33 mm conductor diameter, resistance measurement and continuity test

Product information 3280-70F - AC Clamp Meter 1000 A with Flexible Current Sensor up to 4200 A


Key Specifications  

  • AC current measurement with 3 ranges up to 1000 A 
  • Flexible current sensor for measurements up to 4200 A 
  • Conductor diameter 33 mm 
  • Voltage measurement 600 V AC/DC
  • Resistance measurement and continuity test 

Typical Applications

  • Load measurements in power distribution systems 
  • Current measurements on large conductors and busbars
  • Service and maintenance of electrical installations

Feature CM4141-50
CM4141-90
CM3291 CM3281 CM3289 3280-10F
3280-70F
AC Current 2000 A 1000 A
True RMS yes yes - yes -
Conductor diameter 55 mm 46 mm 33 mm
Voltage
(AC / DC)
1000 V 600 V
Safety Rating CAT IV 600 V
CAT III 1000 V
CAT IV 300 V
CAT III 600 V
CAT IV 300 V / CAT III 600 V (current)
CAT III 300 V (voltage)
Bluetooth available or included -

Detailed Product Overview

The 3280-70F combines the 3280-10F clamp meter with the CT6280 Flexible Current Sensor for AC current measurements up to 4200 A in 50 Hz and 60 Hz power systems. The flexible sensor allows measurements on large conductors, busbars and cable bundles where a conventional clamp cannot be placed around the conductor. 

The clamp meter measures AC current in three ranges up to 1000 A and accommodates conductors up to 33 mm in diameter. This allows measurements on typical installation wiring and supply conductors used in electrical installations and power distribution systems. 

In addition to AC current measurement, the instrument measures voltage up to 600 V AC/DC and provides resistance measurement and continuity testing. The safety ratings are CAT IV 300 V for current measurement and CAT III 300 V for voltage measurement. 

Test Leads and Flexible Current Sensor

Voltage, resistance and continuity measurements are performed using the included L9208 test leads. The optional 9209 Test Lead Holder allows one test lead to be fixed to the rear of the instrument during measurements. The L9208 test leads are compatible with the optional HIOKI accessories L4934 for temporary hands-free connection to conductors and terminals and L4933 for measurements at closely spaced contact points. 

The CT6280 Flexible Current Sensor connects directly to the instrument and measures AC currents up to 4200 A continuously at 50 Hz and 60 Hz. The sensor has a loop diameter of 130 mm and a coil diameter of 5 mm, allowing it to be routed easily around large conductors and in confined spaces. 

Designed for Field Use

The instrument is designed for field use and provides drop protection from a height of 1 m. The operating temperature range of −25 °C to 65 °C allows use in outdoor installations and demanding environments. The 3280-70F is supplied with the C0205 carrying case for transport and storage. Like all HIOKI clamp meters, the instrument is manufactured in HIOKI’s own production facilities in Japan.
  • 3280-10F AC-Zangenmessgerät
  • CT6280 Flexibler Stromsensor
  • L9208 Messleitungen
  • C0205 Gerätetasche
  • Bedienungsanleitung 
  • CR2032 Lithium-Knopfzelle

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