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Safety characteristic data – Pilz PNOZ s4.1 C 48-240VACDC 3 n/o 1 n/c User Manual

Page 18

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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.