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C654M-E (12/08) 7
Figure 1. WCS Unit Wiring Connector Diagram
Table C. Recommended Wiring Distances
The following are the recommended maximum distances (transformer to load) and
are calculated with a 10-percent voltage drop. (Ten percent is generally the
maximum allowable voltage drop for AC-powered devices.) Distances are
calculated in feet; values in parentheses are meters.
Input Voltage
Total VA
Total VA Consumed
Wire Gauge
20 18 16
24 VAC 10 283 (86) 451 (137) 716 (218)
20 141 (42) 225 (68) 358 (109)
30 94 (28) 150 (45) 238 (72)
50 56 (17) 90 (27) 143 (43)
28 VAC 10 386 (117) 614 (187) 975 (297)
20 193 (58) 307 (93) 487 (148)
30 128 (39) 204 (62) 325 (99)
50 77 (23) 122 (37) 195 (59)
1
ON
OFF
Main
Fuse
24V
28V
COM
234
LN
AC Input
GROUND STUD
WCS4-20
Master Power Supply
Made in U
SA
¨
OUTPUT # 1
(24 VAC)
OUTPUT # 2
(24 VAC)
OUTPUT # 4
(28 VAC)
Power