Chapter 4
Installation in a Hazardous Environment
Verifying Switch Operation
Figure 4-11
Clasping the Ferrite
Attach the Power and Relay Connector to the Switch
Follow these steps to attach the power and relay connector to the front panel of
the switch.
When you connect or disconnect the power and relay connector with power
Warning
applied, an electrical arc can occur. This could cause an explosion in
hazardous area installations. Be sure that power is removed from the switch
and alarm circuit. Be sure that power cannot be accidentally turned on or verify
that the area is nonhazardous before proceeding.
Failure to securely tighten the power and relay connector captive screws can
result in an electrical arc if the connector is accidentally removed. Statement
1058
Catalyst 2955 Hardware Installation Guide
4-28
78-14944-03