MCDLV4 Line Differential Protection (MCDLV4-2A0A0AA)

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Product number: MCDLV4-2A0A0AA


The MCDLV4 protection system protects cables and lines up to 24 km.

The system is able to replace up to six protection devices.

  •  2 Cable and Line Differential Devices
  • +2 Directional Feeder Backup Devices
  • +1 In-Zone Transformer Differential Device
  • +1 Mains Decoupling Device

= 6 devices combined in one system

The protection functions of the MCDLV4 have been adapted to comply with the requirements of the VDE‑AR‑N‑4110:2018.

Functional Overview

MCDLV4 Functional Overview


CE Logo
UL Logo

UL File Nr.: E217753

certified regarding UL508 (Industrial Controls)

CSA Logo

CSA File Nr.: 251990

certified regarding CSA-C22.2 No. 14 (Industrial Controls)

EAC Logo


certified by EAC (Eurasian Conformity)



Type tested (and certified) regarding IEC 60255‑1 and regarding IEC 61850

TÜV Nord, VDE-AR-N 4110 (2018-11)

Component certificate regarding the German grid code standard VDE-AR-N 4110 (2018-11)

  • Complies with IEEE 1547‑2003

  • Amended by IEEE 1547a‑2014

  • Complies with ANSI C37.90‑2005

  • Complies with “Engineering Recommendation G99 Issue 1 Amendment 6 – March 2020”

  • Wide range power supply: 24 … 270 VDC / 48 … 230 VAC

  • VT measurement from 0 V up to 800 VAC (300 VAC for some order options)

  • CT measurement always with 1 A and 5 A

  • Plausibility verification intelligence

  • Optimized functional overview by hiding unused functions, parameter and assignments

  • On-board testing without removing the wiring

  • Menu Languages supported: English, German, Spanish, Portuguese, French, Russian, Polish, Romanian

  • Highly Selective, high speed detection of faulty cables/lines.

  • Enabling uninterrupted power supply to facility like Airports, Data Centers, Waste Water Stations,…)

  • On redundant fed HV/MV rings architectures, faulty lines can be switched off with highest speed without any dark time for the rest of the facility.

  • Making time and current grading obsolete. Don’t need to wait for timers or delays of upstream or downstream breakers.

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