64
3 SERIES RETROFIT – INSTRUCTION MANUAL
239 WIRING
CHAPTER 4: ELECTRICAL INSTALLATION
Note 1: The 239 relay with MOD 509 is designed to provide Ground directional protection.
Similar protection can be obtained using the 339 relay on neutral instantaneous protection
using the either current or voltage or both.
43
Access sw +
Programmable
from B1 to B10
44
Restart sw +
Programmable
from B1 to B10
45
Reset sw +
Programmable
from B1 to B10
46
Option 1 sw +
Programmable
from B1 to B10
47
Option 2 sw +
Programmable
from B1 to B10
48
RTD shield
A11
49
RTD1 hot
B8
50
RTD1 comp
A8
51
RTD1 ret
B11
52
RTD2 hot
B9
53
RTD2 comp
A9
54
RTD2 ret
B11
55
RTD3 hot
B10
56
RTD3 comp
A10
57
RTD3 ret
B11
58
Vcom polarizing
(MOD 509)
Note 1
Table 4–19:
239 Terminal
Wiring Connection
339 Terminal