area; otherwise, an explosion may occur, as sparks may
be produced when the button is pressed.
• The RESET push-button must be a normally-open type with a
momentary contact when pushed.
• The electrical ratings must be at least 1 amp at 250 volts AC.
• TABLE C-3 lists several sources of push-buttons; you may
select one or choose one from an alternative supplier.
Table C-3. RESET Push-button Vendors
VENDOR NAME CATALOG NUMBER DESCRIPTION
Appleton Electric Co. EFDB175-U1
Explosion-proof
push-button
Crouse Hindes, Inc. NCS2110
General-purpose
push-button
Relay Connections
Typically, there is no need to open the module during installation
because there are no:
• User configurable internal jumpers
• Potentiometers
• Dip switches or other types of adjustments.
All electrical connections to internal relays can be made via the
factory-installed wiring harness (FIGURE C-3 and TABLE C-4).
It is not necessary to use any of the provided harnesses. If your
Figure C-3.
Relay Wiring Harness
Appendix C, Internal Relay Option
C-7
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