Siemens 340 - ATEX-Specific Safety Data

Technical data
9.1 Motor starters
SIRIUS 3RM1 motor starter
122 Manual, 11/2013, A5E0345285095020A/RS-AB/002
9.1.5.2
ATEX-specific safety data
Referred to ATEX, the 3RM11 Failsafe motor starters (direct-on-line starters) / 3RM13
Failsafe motor starters (reversing starters) have the following safety data:
Safety integrity level (SILCL)
2
Hardware fault tolerance (HFT)
0
Interval for testing the protective functions
3 years
Probability of failure on demand (PFD)
5x10
-4
Probability of a dangerous failure per hour (PFH)
5x10
-8
1/h