Rent Haefely IP4B Capacitive Coupling Clamp

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EM Test Coupling Clamp:

  • Construction as per IEC 61000-4-4 Ed.3
  • Test Cable Length 1m & 40mm Max Size
  • EFT/Burst testing of Signal and Datalines
  • Maximum EFT Voltage 8kV (Both AC & DC)

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The IP4B capacitive coupling clamp is primarily used to inject fast transient and burst interference pulses into signal and data cables, i.e. into any type of connection to peripheral equipment. The IEC standard 61000-4-4 Ed. 3 also allows the capacitive coupling method to be used for pulse injection into AC and DC power lines when no appropriate decoupling network is available.

The coupling capacitance (typically 100pF) between the coupling clamp and the cable inserted depends on the cable type, the the diameter and other factors like screening, etc.

Data Sheet


Common Standards

EN/IEC 61000-4-4

Max. permissible burst voltage

8 kV

Dimension Coupling plate

140 mm x 1000 mm


GND - Coupling plate, 100 mm


High voltage connector

GND connection

4 mm plug, banana

EUT cable

up to 40 mm diameter


10.6 kg

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