Yokogawa Clamp-on Tester CL340

Yokogawa Clamp-On Tester CL340 (Leakage Current, 400A)

  • Leakage current measurement with current range from 40mA to 400A
  • Light weight and compact design
  • Manual range switching and auto power-off functions
  • 40mm in diameter of measurable conductor
  • Mean value display
  • Auto power-off
  • Manual range switching
  • Approved for conformity to safety standards EN61010-1, EN61010-2-032(CAT. III 300 V)




Description Leakage Current Mini Clamp-on
Method of detection Mean Value
Display LCD (Digital display: 3999 counts)
Response Time Approx. 2 seconds
Range Switching Manual-range
Data hold On all range
Operating temperature and humidity 0 – 40°C, 85% RH or less (no condensation)
Influence of external magnetic field 10 mA or less in proximity to a 15 mm-dia conductor carrying 100A
Influence of conductor position 40/400 mA range: Within 5 dgt at every part inside the jaw400A range, 0 to 250A:Within ±0.5% rdg ±5 dgt at every part inside the jaw section
Influence of Residual Current 12 mA or less in proximity to a 10 mm-dia conductor carrying 100A
Safety Standard Conforms EN61010-1, EN61010-2-032
Circuit voltage 300 Vrms or less
Withstanding voltage 3.7 kV AC for one minute
Power Supply LR03 x 2
R0-3(UM-4) x 2
Battery Life Approx. 40 hours (continuous)
Consumed current Approx. 13 mA
Auto power-off Approx. 10 minutes
Diameter of measurable conductor 40 mm at maximum
Dimensions Approx. 81 (W) x 185 (H) x 40 (D) mm
Weight Approx. 270 g
Accessories Batteries, carrying case (93030)
User’s manual (IM CL340)
Peak Hold On all range