Metrohm E3640 4kV Flash Tester

  • Flash / Hipot test up to 4kV AC
  • Panel and switchgear testing
  • Tool hire and workshop service & repair flash testing
  • Twin displays for output voltage and leakage current values
  • Audible and visual alarms
  • Operates from 115V or 230V supply
EAN: 5036162184673 SKU: METE3640 Category:

This product has been discontinued.


The Metrohm E3640 is a 4kV AC flash tester, capable of operating from either a 115V or 230V supply, at 50 or 60Hz. The unit is manufactured in a robust carry case making it fully transportable and ideal for industrial and workshop environments. The variable flash voltage can be set to 2.5kV for low voltage switch gear and control assembly testing.

The Twin 3 1/2 digit LCD displays show both output voltage and leakage current. Clear instructions are displayed within the lid of the tester making connection and measurement straightforward every time.

Applications include electrical safety testing of power tools following service & repair or hire. The E3640 can also be used by panel and switchgear manufacturers to ensure the integrity of electrical insulation.

There are three modes of operation:

  • Trip: indicates a pre-determined current is exceeded
  • Breakdown: fast transients trigger the tripp
  • Burn: the trip function is by-passed and the fault current flows continuously to expose the fault

Test failure is indicated by audible and visual alarms.

The Metrohm E3640 flash tester is supplied with flash gun, earth lead, mains power lead and instruction manual.


Power requirements: 115/230 Volts ±15% 50/60Hz 40VA
Output voltage range: 0-2.2, 0-4.2kV 50/60Hz AC
Accuracy ± 2% of rdg ± 1 dgt
Leakage current 0-5 mA (nominal) 50/60Hz in 10μA steps
Accuracy ± 2% of rdg ± 1 dgt
Trip level range 0 to 3mA 50/60Hz
Setting accuracy ± 5% of full range
Trip response leakage Will trip for fault duration >5mS but not for <100μS
Breakdown Will trip for fast transients of 30μS and above
Complies with EMC: to BS EN 50081-1 and BS EN 50082-2

Safety & flash test: BS EN 61010-1

Weight 4kg approx
Dimensions 330 x 263 x 144mm
Includes DFH0369 flash gun, DFH0366 earth lead, TL205 mains power lead and manual





This product has been discontinued.

Out of stock