Owner manual

PNOZ s4.1
Operating Manual PNOZ s4.1
21890-EN-05
18
Mechanical data 750124 750154 751124 751154
Spring-loaded termi-
nals: Terminal points
per connection
– – 2 2
Stripping length – – 9 mm 9 mm
Dimensions
Height 98,0 mm 98,0 mm 100,0 mm 100,0 mm
Width 22,5 mm 22,5 mm 22,5 mm 22,5 mm
Depth 120,0 mm 120,0 mm 120,0 mm 120,0 mm
Weight 190 g 210 g 190 g 210 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, instan-
taneous
PL e Cat. 4 SIL CL 3 2,31E-09 SIL 3 2,03E-06 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.