ES 2: How to Design Control Panels according to EN 60204-1

Last edit: 26/10/2023

Training Objectives

The training objective is to be able to design and engineer an industrial control panel according to the European Standard EN 60204-1. Since October 2021, the 2006 edition of EN 60204-1 is not anymore harmonised and the new edition has become compulsory. We will also touch on the new editions of IEC 61439-1 and IEC 61439-2 (2020). Despite adhering to the language of the standard, the training is practical, with several examples.



DURATION: 16 hours

MODULE 1 (8 hours) Introduction and Overcurrents

  • Fixed installations vs Electrical Equipment of Machinery
  • Main Reference Standards
  • CE Marking of Electrical Installation
  • General prescriptions
  • Cable shielding
  • Main Disconnect
  • Grounding Cable
  • Unexpected start up
  • Use of an unfused disconnect as a General Disconnector
  • How to distribute power inside the control panel
  • Protection against electric shock
  • Residual Current Devices and the G Curve
  • Overload Protection
  • The Short Circuit
  • The Interrupting Rating
  • Selectivity
  • The SCCR
  • Tap Conductors

MODULE 2 (8 hours) Indirect Contacts, Ampacity and verifications

  • Basic and Fault protection in TN Systems
  • The concept of Exposed and Extraneous Conductive Part
  • The Fault Loop and the TN System
  • Amendment IEC 60204-1 – September 2021
  • Residual Current Device
  • The high sensitivity RCD
  • TT and TN systems
  • Class II Cables
  • IEC 60204-1: what shall be bonded
  • Free air cable ampacity according to IEC 60364-5-52
  • Cable Ampacity according to IEC 60204-1 and IEC 61439-1
  • Cable Ampacity: GT Engineering recommendation
  • Protection against control circuit malfunctioning
  • Operator interface and Cabling techniques
  • The nameplate
  • Nominal vs maximum current
  • Tests and Verifications: Continuity test, Earth Leakages, Dielectric, Insulation Test


GT Engineering is a member of the following Technical Committees

  • Member of the Technical Committee IEC/TC44 MT 60204-1 for IEC 60204-1: Safety of machinery – Electrical equipment of machines.
  • Member of the Technical Committee IEC/TC64 MT9 for  IEC 60364-4-41: Low-voltage electrical installations – Protection against electric shock
  • Member of the UL Standard Technical Panel (STP) for UL 508A
  • Principal (Special Expert) on the NFPA 79 Technical Committee.
  • Member of WG 4-006 of the CE Code (Canadian Electrical Code C22.1)