Home and Building Electronic Systems (HBES) - Part 4-1: Media independent layers - Application layer for HBES Class 1; German version EN 50090-4-1:2004, text English
Edition 2004-06

Multi-element metallic cables used in analogue and digital communication and control - Part 4-1: Sectional specification for screened cables characterised up to 600 MHz - Horizontal and building backbone cables; German version EN 50288-4-1:2013
Edition 2014-03

Communication cables - Specifications for test methods - Part 4-1: Environmental test methods; General requirements; German version EN 50289-4-1:2001
Edition 2002-05

Communication cables - Part 4-1: General considerations for the use of cables - Environmental conditions and safety aspects; German version EN 50290-4-1:2014
Edition 2015-04

Insulating, sheathing and covering materials for low voltage energy cables - Part 4-1: PVC sheathing compounds; German version EN 50363-4-1:2005
Edition 2006-10

Fibre management systems and protective housings to be used in optical fibre communication systems - Product specifications - Part 4-1: Passive optical street cabinet for category A; German version EN 50411-4-1:2019
Edition 2020-07

Information technology - Data centre facilities and infrastructures - Part 4-1: Overview of and general requirements for key performance indicators; German version EN 50600-4-1:2016
Edition 2017-06

Household appliances network and grid connectivity - Part 4-1: Communication Protocol Specific Aspects: SPINE, SPINE-IoT and SHIP; German version EN 50631-4-1:2023
Edition 2024-09

Household appliances network and grid connectivity - Part 4-1: Communication Protocol Specific Aspects: SHIP 1.1; German and English version prEN 50631-4-1:2021
Edition 2022-11

Rotating electrical machines - Part 4-1: Methods for determining electrically excited synchronous machine quantities from tests (IEC 60034-4-1:2018); German version EN IEC 60034-4-1:2018
Edition 2019-06