Introduction:
CDN M4PE 125A 1000V is a 4-wire coupling and decoupling network manufactured by SCHWARZBECK Company in Germany, authorized by Shenzhen EUTTEST Company for sales and quotation service. This CDN coupling and decoupling network supports the maximum line-to-ground AC voltage of 500V and DC voltage of 1000V, and the maximum saturation current of 125A, which can be used for EMC testers to conduct common mode immunity test according to IEC 61000-4-6 Annex D.2 standard, and it is suitable for conducting immunity test along the power line of unshielded AC and DC power lines (utility). It is suitable for conducting immunity tests along power lines for unshielded AC and DC power lines (mains).
Selection Notes:
This device is compatible with CDN M2 125A 1000V The maximum current for both is 125A, but the CDN M4PE presented on this page contains one ground and three fire wires, unlike the CDN M2 125A 1000V which can only have two fire wires in the test pattern.
You can also choose a lower current CDN M4PE 32A 1000V as well as CDN M4PE 16A 1000V Please select a product based on this description and your testing needs.
Safety Instructions:
In order to increase operational safety, the connection of the supply voltage for the use of this device is made to a safety socket. We offer a power cord and plug KBT6AR-N/25-S-L (for installation on 25 mm² cable, plug without cable), which are specially designed for a current of 125 A. The power cord and plug KBT6AR-N/25-S-L are available in a variety of sizes and sizes.
Technical parameters:
Product Specification Sheet:
“Reminder: swipe tables left and right”At 24MHz - 80MHz: 150 Ω +60 Ω / -45 Ω
80 MHz - 230 MHz: 150 Ω ±60 Ω
See common mode impedance graph below for detailed values.
1000V DC
2000V DC
Heavy products need to be used directly on a ground plane.
SR 30/4
SR 100-6W
High current plug-in connectors
Common mode impedance plot:
The following figure shows the common mode impedance curve of this product in accordance with the requirements of IEC 61000-4-6 and GBT 17626.6 conducted immunity test standard, the red line in the figure represents the impedance value range given by the standard.

Common mode impedance graph
Product Recommendation:
- Learn how to shop for a CDN?
- Need CDNE?
- Need more CDN & CDNE Coupling & Decoupling Networks models with test voltages and number of cables under test?
Please go to the following link to view:
Difference between CDN and CDNE Schwarzbeck Coupling Decoupling Networks Product Catalog
Order No. EUTS0586
EUTTEST is an official authorized distributor of SCHWARZBECK, whose full official name is: SCHWARZBECK MESS - ELEKTRONIK OHG
Ltd. is authorized by schwarzbeck to sell all products in China and provide technical service for the products sold.

Schwarzbeck Product List Schwarzbeck
CDN M1 16A 1000V Schwarzbeck
CDN AF2 Schwarzbeck
CDN S25 SUBD Schwarzbeck
CDN M3 32A 1000V Schwarzbeck
CDN M2 16A 1000V Schwarzbeck
CDN M2/M3PE 16A Schwarzbeck