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Instruction Leaflet
DT3000
Page 30
Effective: Date 07/02
I.B. 17555D
For more information visit:
www.cutler-hammer.eaton.com
Supersedes I.B. 17555C dated November 1999
For ground zone interconnection cable, see cable specifications on Fig. 3-2. Maximum distance between the first and last
zone should be 250 feet. Route separate from power conductors.
Jumper on devices in last zone used to provide time delay per inverse time overcurrent or short delay time setting. If the
jumper is not used the Digitrip 3000 will initiate trip without time delay (nominally 0.1 seconds).
Up to 10 Digitrip devices may be wired in parallel to provide a single upstream restraint signal.
Only 1 Zone common used for both phase and ground.
DO NOT CONNECT ZONE COMMON TO EARTH GROUND.
Fig. 4-1 Connection Diagram for Typical Ground Zone Selective Interlocking