External Connections - GE 239 Instruction Manual

MANUAL PART NO.
1601-00XX-D4
2.1.3

External Connections

CT ROW
1 Phase A CT 5A
2 Phase A CT 1A
3 Phase A CT COM
4 Phase B CT 5A
5 Phase B CT 1A
6 Phase B CT COM
7 Phase C CT 5A
8 Phase C CT 1A
9 Phase C CT COM
10 Ground CT 5A
11 Ground CT 50:0.025
12 Ground CT COM
2–16
Courtesy of NationalSwitchgear.com
Table 2–1: Firmware/manual Revisions Table
FIRMWARE
VERSION
2.3x
Signal wiring is to box terminals that can accommodate wire as large as 12 gauge. CT
connections are made using #8 screw ring terminals that can accept wire as large as 8
gauge (see FIGURE 2–3: Typical Wiring Diagram on page 2–18). A minimal configuration will
include connections for control power, phase CTs and the trip relay. Other features can be
wired as required. Considerations for wiring each feature are given in the sections that
follow.
Table 2–2: External Connections
SIGNAL LOWER ROW
13 Safety ground
14 Filter ground
15 RS485 A+
16 RS485 B–
17 RS485 ground
18 Analog out +
19 Analog out –
20 Analog out shield
21 Thermistor in +
22 Thermistor com
23 Trip NO
24 Trip COM
25 Trip NC
26 Alarm NO
27 Alarm COM
28 Alarm NC
29 Auxiliary NO
30 Auxiliary COM
31 Auxiliary NC
32 Service NO
33 Service COM
CHAPTER 2: INSTALLATION
MANUAL PART NO.
1601-00XX-DB
SIGNAL UPPER ROW
36 Control live (+)
37 Control neutral (–)
38 Sw com
39 Sw com
40 Sw com
41 Sw com
42 Sw com
43 Access sw +
44 Restart sw +
45 Reset sw +
46 Option 1 sw +
47 Option 2 sw +
48 RTD shield
49 RTD1 hot
50 RTD1 comp
51 RTD1 ret
52 RTD2 hot
53 RTD2 comp
54 RTD2 ret
55 RTD3 hot
56 RTD3 comp
239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL
FIRMWARE
VERSION
2.7x