Specifications

55 Publication 1747-UM011G-EN-P - June 2008
Chapter 3
System Installation Recommendations
To help you install the SLC 500 programmable controller as safely and securely
as possible, follow the specific recommendations in this chapter. For general
installation guidelines, also refer to the requirements specific to your region.
• Europe: Reference the standards found in EN 60204 and your national
regulations.
• United States: Refer to article 70E of the National Fire Protection
Association (NFPA). It describes electrical safety requirements for
employee workplaces.
This chapter covers the following:
• System overview
• Typical installation
• Spacing your controllers
• Preventing excessive heat
• Grounding guidelines
• Master control relay
• Power considerations
• Safety considerations
• Preventive maintenance
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