Manual
PNOZ s9
Operating Manual PNOZ s9 
21401-EN-08
15
Mechanical data 750109 751109 751189
Dimensions
Height 98,0 mm 100,0 mm 100,0 mm
Width 17,5 mm 17,5 mm 17,5 mm
Depth 120,0 mm 120,0 mm 120,0 mm
Weight 175 g 175 g 175 g
The standards current on 2009-12 apply.
Safety characteristic data
Operating 
mode
EN ISO 
13849-1: 
2006
PL
EN ISO 
13849-1: 
2006
Category
EN IEC 
62061
SIL CL
EN IEC 
62061
PFH
D
 [1/h]
IEC 61511
SIL
IEC 61511
PFD
EN ISO 
13849-1: 
2006
T
M
 [year]
Safety con-
tacts, de-
layed
PL e Cat. 4 SIL CL 3 2,34E-09 SIL 3 2,75E-05 20
All the units used within a safety function must be considered when calculating the safety 
characteristic data.
Information
A safety function's SIL/PL values are not identical to the SIL/PL values of 
the units that are used and may be different. We recommend that you use 
the PAScal software tool to calculate the safety function's SIL/PL values.
ATTENTION!
It is essential to consider the relay's service life graphs. The relay outputs' 
safety-related characteristic data is only valid if the values in the service life 
graphs are met.
The PFH value depends on the switching frequency and the load on the relay output. If the 
service life graphs are not accessible, the stated PFH value can be used irrespective of the 
switching frequency and the load, as the PFH value already considers the relay's B10d val-
ue as well as the failure rates of the other components.










