EFT Coupling Clamps

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Rent Haefely IP4B Capacitive Coupling Clamp for EFT / Burst for Signal and Data Cables View larger

Haefely IP4B Capacitive Coupling Clamp for EFT / Burst for Signal and Data Cables


  • In Stock, Calibrated and Ready to Ship
  • Prices are on a Per Month Basis
  • Designed as per EN/IEC 61000-4-4 Edition 3
  • EFT/Burst testing of signal and data lines
  • For cable diameter from 4-40 mm
  • Active coupling length 1 m

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$299.00 + Shipping

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  • Used

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Standards Met IEC / EN 61000-4-4
Application/Test Type Electrical Fast Transients on Data Lines (EFT Burst)
EFT Coupling Clamps
as per IEC 61000-4-4
Parameter Value
Cable Diameter 4 - 40 mm ( .16 - 1.57 in)
Coupling Length 1 m (39.4 in)

Test Equipment Description

Haefely IP4B Description:

The Hefely 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 diameter and other factors like screening, etc.

The transducer plate sha ll be placed in the capacitive coupling clamp such that the end with the connection is aligned with the end of the lower coupling plate. The connecting adapter shall support a low impedance connection to ground reference plane for grounding of the 50Ω coaxial measurement terminator/attenuator. The distance between the transducer plate and the 50 Ω measurement terminator/attenuator shall not exceed 0,1m.

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