Technical data
Leuze electronic MSI-SR4B 23
13 Technical data
Table 13.1: Safety-relevant technical data
Table 13.2: Electrical data, protection rating, environment
Category acc. to EN ISO 13849-1: 2009 4
Performance Level (PL) in accordance with
EN ISO 13849-1: 2008
PL e
Category in accordance with EN ISO 13849-1 category 2
Probability of a dangerous failure per hour (PFH
D
) 2.0 x 10
-8
Mean time to dangerous failure (MTTF
d
) 73 years
Service life (T
M
) 20 years
B10
d
DC 13: 10.0 million switching cycles
AC 15: 1.4 million switching cycles
Stop category acc. to EN/IEC 60204-1 Stop 0
Operating voltage U
B
24 V AC/DC, 20%
Power consumption 3 W
External safeguarding for supply circuit 200 mA delay-action
Output contacts 3 normal open contacts, 1 normal closed contact
(Ag alloy)
Switching capacity of the contacts acc. to EN/
IEC 60947-5-1
AC-15: 230 V / 5 A 1.6x10
5
switching cycles
DC-13: 24 V / 3 A 1.3x10
5
switching cycles
Max. continuous current per current path 3 A
Ext. contact fuse protection per current path 5 A quick-action or 3.15 A delay-action
Max. switching frequency 3600 switching cycles/h
Mechanical life time 10 million switching cycles
Pickup delay, manual start 30 ms
Pickup delay, automatic start 300 ms
Regression delay, response time 10 ms
Max. test pulse acceptance 1 ms
Time window for signal sequence monitoring 20 ms
Control voltage/current on S12, S22, S31 24 V DC / 40 mA
Max. input current 100 mA
Admissible input line resistance < 30
Operating temperature 0° … +55°C
Storage temperature - 25° … +70°C
Overvoltage category in accordance with
VDE 0110 part 1
III for rating voltage 300 V AC
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