EM Test BS 200N100 - Electronic Switch for Voltage Transient Testing

EM Test Electronic Switch:

  • Electronic Switch Accordance with ISO 7637 Part 2
  • Rented with EM Test Transient Emissions Set
  • Max 60Volts & 100Amps Cont. (400A @ 200ms)
  • Designed for use with AN 200N100 & RS-Box


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DC Emissions Rental Equipment



The BS 200N100 is used to evaluate automotive electrical and electronic components for conducted emissions of transients along battery fed or switched supply lines of a Device Under Test (DUT). A device under test which is considered a potential source of conducted disturbances should be tested according to ISO 7637 part 2. The BS 200N100 and BS 200N100.1 include an electronic switch for repeatable switching of inductive loads as specified in ISO 7637-2:2011 yet supporting former standard editions.

User Manual


Operating voltage

Max. 60 V

Operating current

Max. 100 A continuous

Peak current protection

500 A

Inrush current

400 A for 200 ms

Voltage drop

Less than 0.2 V @ 25 A
Less than 1.2 V @ 100 A

Peak voltage

Typ. 1300 V

Overvoltage protection

By varistor

Overvload protection

short – circuit over temperature protected

switch off after approx. 2 min with 120 A;

switch on after approx.. 45 s cooling time.

Switching time

300 ns +/-20% (240 ns – 360 ns) into test load 50microH/0.6 Ohm

On/Off duration

Min. 10 ms to 500 ms continuously selectable by potentiometer ± 5%

On/Off repetition

Min. 1 s to 10 s continuously selectable by potentiometer ± 5%

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