ISO 21498-1:2021
ISO 21498-1:2021



This document applies to voltage class B electric propulsion systems and connected auxiliary electric systems of electrically propelled road vehicles. Additionally, it applies to electric circuits and components in these systems.

This document provides specifications of voltage sub-classes related to DC electric circuits. It also provides specifications of characteristics which are relevant for design and operation of systems and components for the voltage sub-classes.

This document does not cover electrical safety (see ISO 17409 and the ISO 6469 series).

General information 

  •  :  Published
     : 2021-01
  •  : 1
     : 12
  •  : ISO/TC 22/SC 37 Electrically propelled vehicles
  •  :
    43.120 Electric road vehicles

Buy this standard

Format Language
std 1 61 PDF + ePub
std 2 61 Paper
  • CHF61

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.