2–20
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
ELECTRICAL INSTALLATION
CHAPTER 2: INSTALLATION
Table 2-5: AC Analog
Wire Size
Use the following guideline when selecting wires or lugs to connect to terminal strips A, B,
C, D, E, F, G, H, and terminal blocks J, K. Note that the first two bullets are applicable to
terminal blocks J and K only:
•
12 AWG to 22 AWG (3.3 mm
2
to 0.3 mm
2
): Single wire termination with/without 9.53
mm (0.375”) maximum diameter ring terminals.
•
14 AWG to 22 AWG (2.1 mm
2
to 0.3 mm
2
): Multiple wire termination with 9.53 mm
(0.375”) maximum diameter ring terminals. Two ring terminals maximum per circuit.
•
Suggested wiring screw tightening torques are: terminal strips A-H tighten to 4.5 in-lbs
(0.5 N-m) and terminal blocks J, K to 15 in-lb (1.7 N-m).
Figure 2-22: Fiber Connector Types (S - ST)
22
FC_3 NC
Critical Fail Relay
23
FC_3 COM
Critical Fail Relay
24
FC_3 NO
Critical Fail Relay
AC Inputs - 4 X 1/5A CT, 4 VT
Terminal
Description
1
CT1_IN
2
CT1_RETURN
3
CT2_IN
4
CT2_RETURN
5
CT3_IN
6
CT3_RETURN
7
CT4_IN
8
CT4_RETURN
9
VT1_IN
10
VT1_RETURN
11
VT2_IN
12
VT2_RETURN
13
VT3_IN
14
VT3_RETURN
15
VT4_IN
16
VT4_RETURN
Summary of Contents for 845
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