3604 Clamp,
Insulation Tester & Thermometer
3604 Clamp, Insulation Tester & Thermometer
3604 Clamp Meter
It's got to be the go-to meter for any serious industrial electrician!
  • An All-in-One Clamp for Industrial Electricians
  • 1000A True RMS Clamp, 1000VDC & TRMS AC
  • Five Insulation Test Ranges
  • Selectable HF Noise Rejection
  • Temperature, Capacitance, AC/DC Volts
  • 12 Measurement Functions in One Instrument

The 3604 is a great instrument for any industrial site work. Its large D-jaw easily gets around 70mm bus bars to measure 1000 amps, with 2 high frequency rejection settings to minimise the effects of electrical noise and maximise your measurement accuracy.

Use your 3604 to check bearing case temperatures with the K-Type thermocouple included, measure leakage current and supply voltages.

Pushbutton Inrush Current Capture lets you see exactly what the load is drawing on startup and an insulation tester for single and three phase circuits, along with capacitance ranges help fault find.


Volts: DC 0.1mV to 1000V ±(0.5% Rdg + 2Dgts)
True RMS AC 0.1mV to 750V ±(2.0% Rdg + 8Dgts)*
*@ 50~400Hz
Current: True RMS AC 10mA to 1000A ±(3.0% Rdg + 10Dgts)*
Via test leads:
DC 0.1μA to 400mA ±(1.0% Rdg + 4Dgts)
True RMS AC 0.1μA to 400mA ±(1.5% Rdg + 10Dgts)*
HF Rejection: Reject >1kHz or >10kHz
Inrush Current: 100ms capture on clamped 600 & 1000AAC

Other Functions:

Diode Test, Continuity Beeper, Backlight, Auto Power-off, Min/Max Capture, Display Hold, Safety V/W socket interlock, 6000 count display with 60 segment bar graph. Battery: 5 x 1.5V Alkaline batteries 100 Hours of operation / 500 insulation tests
Battery:5 x 1.5V Alkaline batteries 100 Hours of operation
/ 500 insulation tests
IEC Rating:IEC/EN 61010-2-032, CAT III 1000V,CAT IV 600V

Insulation Resistance Test

  • Test Ranges:
  • Resolution:
  • Safety:
  • Resistance:
  • Capacitance:
  • Frequency:
  • Temperature:
  • Duty Cycle:
  • Dimensions:
  • 50, 100, 250, 500 & 1000V
  • 1kΩ to 10MΩ ±(3.0% Rdg + 5Dgts)
  • > 30V AC/DC on inputs, inhibits tes
  • 0.1Ω to 60MΩ ±(1.0% Rdg + 5Dgts)
  • 1nF to 6000μF ±(3.0% Rdg + 10Dgts
  • 0.01Hz to 10MHz ±(0.1% Rdg + 5Dgts)
  • -50 to 1300° ±(2.0% Rdg + 3Dgts)
  • 5.0 to 95.0% ±(2.0% Rdg + 10Dgts)
  • Meter: 326(H) x 108(W) x 53mm, 720gm
    Jaw Opening: 57mm Conductor, 70 x 18mm bus bar

Accessories Included:

Soft zip-up Carry Case, Test lead pair with removable shrouds and screw-on alligator clips, K-Type Bead temperature probe and Insulation test probe with remote test control.