C1
C2
B1
B2
A1
A2 G1
G2
ØC
ØB
ØA
A
Digitrip 3000
3-Phase 3-Wire Residual Ground Connection
View ”A“
52
A
B
C
See View ”A“
For Residual
CT Connection
A
CT
ABC
Zero
Sequence
CT
Other
Devices
G2 C2 B2 A2
G1
C1 B1
A1
Ground
Zone
Phase
Zone
Zone Common
E G
Out
In
Out
In
11
12
13
14
15
5
6
9
10
4
52b
B
TB1
H
H
AC/DC
Supply
Close CKT
CS
C
TB2
4
TB2
5
Comm.
Close
CS
T
TB2
14
TB2
15
Trip OC
/Comm.
TB2
12
TB2
13
Trip
Inst.
52a
52a
TC
TB2
1
2
3
4
5
6
7
8
9
10
11
F
INCOM
Network
INCOM Shield Tie Point C
Communication
Close or High Load Alarm D
Trip Alarm
Protection
OFF
Alarm
Trip Inst.
or Ground D
Trip OC or Phase/
Communications D
12
13
14
15
A = CTs can be located on either
side of the circuit breaker.
CT polarities can be toward or
away from the circuit breaker.
B = The 52b contact is required for
proper operation of the Digitrip
3000 Protective Relay.
C = TB2 terminal 3 is not connected
to ground or any electrical
circuit in the Digitrip 3000.
D = Congurable contact, refer to DIP
switch settings.
E = Remove jumpers if Zone Interlocking
is required.
F = Use Eaton Cable CAT # IMPCABLE,
Style # 2A95705G01; Belden 9463 cable
family; or equivalent Commscope or
Quabbin cables.
G = Wire spec: 600 V 90ºC,
UL 1039 rated wire.
H = For the DT3030 to be ”CE Compliant,“
the power supply input fuse must be
rated at a maximum of 0.25 amperes.
E G
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