Table of Contents
Advertisement
Table 12 - Current Transformer and Potential Transformer Wire sizing tables for Customer Supplied starter to Chiller
Unit Control Panel Starter module 1A23.
The maximum recommended wire length for secondary CT leads in a dual CT system are:
Wire
2
AWG(mm
)
8(10)
10(6)
12(4)
14(2.5)
16(1.5)
17(1)
18(0.75)
20(0.5)
Note: 1. Wire lengths are for copper conductors only.
2. Wire lengths are total "one way" distance that the CT can be from the Starter module.
The maximum recommended total wire length for PT's in a single PT system:
Wire Gauge
8
10
12
14
16
17
18
20
21
22
The maximum recommended total wire length (to and from) for PT leads in a dual PT system are:
Max Wire
Wire
Length
Gauge
Primary (ft)
8
3061
10
1924
12
1211
14
761
16
478
17
379
18
301
20
189
21
150
22
119
Note: These wire lengths are for copper conductors only
Note: The above lengths are maximum round trip wire lengths. The maximum distance the PT can be located from
the Starter module is 1/2 of the listed value.
46
Electrical
Information
Maximum Wire Length Secondary CT Leads
Feet
1362.8
856.9
538.9
338.9
213.1
169.1
134.1
84.3
Max lead length(ft)
5339
3357
2112
1328
835
662
525
330
262
207
Max Wire
Length
Primary (m)
933
586
369
232
145
115
91
57
45
36
Customer Supplied
Remote Starter
Meters
415.5
261.2
164.3
103.3
65.0
51.5
40.9
25.7
Max lead length (m)
1627
1023
Max Wire
Length
Secondary (ft)
711
447
281
177
111
88
70
44
34
27
643
404
254
201
160
100
79
63
Max Wire
Length
Secondary (m)
217
136
85
53
33
26
21
13
10
8
CDHF-SVN01B-EN
Advertisement
Table of Contents
