v1rev 12025-09-26derived from ISO 13849:2022, O.1.5

inherently safe subsystem

0112/2///62683#ACH690

subsystem without dangerous failure mode

value term

All properties39#

Version: 1
Revision: 1
Preferred name: inherently safe subsystem
Synonymous name: device type 4
Definition: subsystem without dangerous failure mode
Definition source: derived from ISO 13849:2022, O.1.5
Note: The absence of dangerous failure mode is called also fault excusion.
Definition class: 0112/2///62683#ACC010LV switchgear and controlgear blocks of properties
Responsible committee: IEC/TC 121
Publisher: IEC
Status level: Standard
Version release date: 2025-09-25
Revision release date: 2025-09-26
Version initiation date: 2025-09-26
Original definition date: 2025-09-26
Change request ID: C00094
C017
C018
C019
MDC_P001_11: 0112/2///62683#ACH690inherently safe subsystem
MDC_P025_1: INTSUBST