Key Specifications of Teseq CDN 3425 Capacitive Coupling Clamp
Mainly used to couple burst/EFT pulses to data lines. It can also
be used for mains lines where no CDN is available, such as high -
current lines greater than 200 A.
Designed for conducted immunity testing per EN 61000-4-6 and other
EMC standards.
Injects RF disturbance signals onto cables (e.g., power lines, data
lines) without galvanic contact.
Frequency Range:150 kHz to 230 MHz (covers typical immunity test
requirements).
Coupling Capacitance:Capacitive coupling via clamp design: 100 pF
to 200 pF (depending on cable geometry and setup).
Impedance:150 Ω nominal impedance (matches standard test setups for
RF immunity).
Maximum Test Voltage/Current:Up to 200 V RMS (dependent on test
setup and safety guidelines).
Current handling compatible with typical EMC test levels.
Mechanical Design:Adjustable clamp for cables up to 30 mm diameter.
Robust construction with shielded housing for minimal external
interference.
Connectors:Input: BNC or N-type (RF input from amplifier).
Output: Direct coupling to the cable under test.
Compatibility:Works with RF amplifiers and test systems (e.g.,
Teseq NSG 3000 series, or equivalent).
Used in automotive, industrial, and consumer electronics EMC
testing.
Standards Compliance:Meets EN 61000-4-6, IEC 61000-4-6, and CISPR
specifications for conducted immunity.
Typical Applications of Teseq CDN 3425 Capacitive Coupling Clamp
Immunity testing for electrical/electronic devices against RF
conducted disturbances.
Pre-compliance and full-compliance EMC testing in labs or
production environments.
Automotive component testing (e.g., ISO 11452-4).
Optional INA 3425 calibration kit as specified in IEC 61000 - 4 - 4
Ed 3.0 (2012).
Optional INA 3825 safety cover with interlock function, which can
be connected to NSG 3000 series generators.
Coupling Capacitance: The coupling capacitance between the clamp and the cable placed
in it depends on the cable characteristics.
Operating Environment: Preferably operated in a screened room to protect the
environment. The distances to the EUT (Equipment Under Test) and
peripherals should be as specified in the standard. It requires
good and large - area contact with the earth plane. Tests on
uninsulated cables are not allowed.
Connection: Connect the provided HV pulse cable to the pulse output of the
EFT/Burst generator. If the INA 3825 accessory is used, connect the
interlock cable to the interlock input of the generator and use the
INA 3825 to cover the CDN 3425 to activate the interlock switch
(rear side - middle).
