4 connecting alarms, Connecting alarms – ADC PowerWorx Power Distribution User Manual

Page 27

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ADCP-80-575 • Issue 2 • December 2006

Page 21

© 2006, ADC Telecommunications, Inc.

6. Locate the C GND (chassis ground) studs at the rear of the panel as shown in

Figure 15

.

Figure 15. Chassis Ground Connections

4.4

Connecting Alarms

Depending on the model being installed, the fuse platform will have either of two types of alarm
connectors on the rear side of the platform:

• Screw-down barrier terminal strip

• Wire wrap pin

Figure 16

shows the two types. Connect the connectors as follows:

Screw-down barrier terminal strip: The terminal screw size is 3-48. Terminate wire leads
with crimp-on spade lug or ring connectors that have a maximum width of 0.200 (5.080
mm) or use #16 to #30 AWG copper wire without lugs (insulation stripped back). In
selecting wire size, follow local code referring to the ampacity guidelines provided in
Appendix A of this manual.Tighten the terminal screws to approximately 9 pound-inches
(1 Newton-meter) of force.

Wire-wrap terminal: Wrap terminal block pins using #22 to #26 AWG copper wire with
insulation stripped back. In selecting wire size, follow local code referring to the ampacity
guidelines provided in Appendix A of this manual.

DETAIL DRAWING

OF GROUNDING

WIRE CONNECTION

18868-A

TIGHTEN STUD NUT TO

23 POUND-FORCE INCHES

(2.6 NEWTON METERS)

OF TORQUE

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