Beckhoff KL6904 User Manual download pdf (Page 17)

Product description

KL6904 15

3.4 Safety parameters

Key figures KL6904

Lifetime [a] 20

Prooftest Intervall [a] not required

PFH 1.73E-09

%SIL3 1.7%

PFD 1.42E-04

%SIL3 14.2%

MTTFd [a] >100

DC >99%

Performance level PL e

Category 4

HFT 1

Element classification* Type A

*) Classification according to IEC 61508-2:2010 (see chapters 7.4.4.1.2 and 7.4.4.1.3)

The KL6904 Bus Terminal can be used for safety-related applications within the meaning of

IEC 61508:2010 up to SIL3 and EN ISO 13849-1 up to PL e (Cat4).

Special proof tests are not required during the entire service life of the KL6904 Bus Terminal.

3.5 Dimensions

Width: 24 mm (side-by-side installation)

Height: 100 mm

Depth: 68 mm

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Beckhoff KL6904 User Manual Page 17