Spectrum Controls 1746sc-CTR4 - Manual (Page 11)

Installing And Wiring Your Module
Read this chapter to install and wire your module. This chapter covers:
• avoiding electrostatic damage
• determining power requirements
• selecting a rack slot
• inserting your module into the rack
• wiring your module
Important - For UL and CUL compliance, power and input/output (I/O)
wiring must be in accordance with Class I, Division 2, wiring methods
[Article 501-4 (b) of the National Electrical Code , NFPA 70] and in
accordance with the authority having jurisdiction. Also, you must
observe the warnings shown below. Failure to observe these warnings
can cause personal injury.
WARNING
EXPLOSION HAZARD
Substitution of components may impair suitability for
Class I, Division 2;
When in hazardous locations, turn off power before replacing or
wiring modules;
Do not disconnect equipment unless power has been switched
off or the area is known to be non-hazardous.
Chapter 2
!