Rockwell Automation Publication 440G-UM001C-EN-P - June 2019 11
Chapter 2
Safety Concept
Safety Standards
The Guardmaster® 440G-LZ safety switch satisfies applicable requirements in
the following standards that are related to functional safety and machinery
assembly:
• IEC 60947-5-1: 2003+A1: 2009
• IEC 60947-5-3: 1999/A: 2005
• IEC 61508:2010 SIL 3
• IEC 62061:2005 SIL 3
• EN ISO 13849-1:2008/AC: 2009 Performance Level e (PLe),
Category4
• EN ISO 14119:2013
• UL 508 17
th
Edition dated 3/19/2013
Safety Certification
The Guardmaster 440G-LZ safety switch is certified for use in safety
applications up to and including SIL 3 according to IEC 61508 and IEC
62061 with a proof interval of 20 years, and Performance Level PLe Category 4
in compliance with ISO 13849-1.
Safety requirements are based on the standards applicable at the time of
certification.
The TÜV Rheinland group has approved the Guardmaster 440G-LZ safety
switch for use in safety-related applications where Performance Level “e” is
required for the door position and lock monitor functions.
The 440G-LZ safety switch must be installed in accordance with the
applicable regulation and standards.
While the 440G-LZ safety switch can be used for SIL 3, PLe, and Category 4
applications, the installer must comply with guard requirements (for example,
ENISO13854 and EN ISO 13857), and in some cases minimum (safe)
distance requirements (for example, EN ISO 13855).
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