3-6 Wiring
Table 3.C SMC-Flex 5…1250 A, Line Connection Lug Information
➀
The 1250 A device requires one (1) each of the 100-DL630 and 100-DL860.
Table 3.D SMC-Flex 108…1250 A, Delta Connection Lug Information (for
Inside-the-Delta applications)
➀
For 625
…1250 A inside-the-delta connections, terminal blocks are required for line side
connections. Required terminal blocks are as follows:
- Allen-Bradley Part# 1492-BG (625…780 A: 2 per phase, 970…1250 A: 4 per phase). Short-Circuit
Protection = Fuses
- Cooper Bussmann Part# 16504-2 (625…780 A: 1 per phase, 970…1250 A: 2 per phase). Short-
Circuit Protection = Circuit breaker
➁ Load side lug information for inside-the-delta applications is contained in Table 3.C.
SMC
Rating
Lug Kit
Cat. No.
Wire Strip
Length
Conductor
Range
Max. No. Lugs/Pole Tightening Torque
Line Side Load Side Wire — Lug Lug — Busbar
5…85 A — 18…20 mm
2.5…85 mm
2
(#14…3/0 AWG)
— — 11.3 N•m
(100 lb.-in.)
—
108…135 A 199-LF1 18…20 mm
16…120 mm
2
(#6…250 MCM)
11 31 N•m
(275 lb.-in.)
23 N•m
(200 lb.-in.)
201…251 A 199-LF1 18…20 mm
16…120 mm
2
(#6…250 MCM)
22 31 N•m
(275 lb.-in.)
23 N•m
(200 lb.-in.)
317…480 A 199-LG1 18…25 mm
25…240 mm
2
(#4…500 MCM)
22 42 N•m
(375 lb.-in.)
28 N•m
(250 lb.-in.)
625…780 A 100-DL630 32 mm / 64 mm
70…240 mm
2
(2/0…500 MCM)
22 45 N•m
(400 lb.-in.)
68 N•m
(600 lb.-in.)
970 A 100-DL860 26 mm / 48 mm
120…240 mm
2
(4/0…500 MCM)
11 45 N•m
(400 lb.-in.)
68 N•m
(600 lb.-in.)
1250 A
➀
100-DL630 32 mm / 64 mm
70…240 mm
2
(2/0…500 MCM)
11
45 N•m
(400 lb.-in.)
68 N•m
(600 lb.-in.)
100-DL860 26 mm / 48 mm
120…240 mm
2
(4/0…500 MCM)
11
SMC
Rating
Suggested Lug
Cat. No.
Conductor
Range
Max. No. Lugs/
Pole
Tightening Torque
Line Side ➁ Wire — Lug Lug — Busbar
108…135 A 1494R-N15
25…240 mm
2
(#4…500 MCM)
1 42 N•m
(375 lb.-in.)
23 N•m
(200 lb.-in.)
201…251 A 1494R-N14
50…120 mm
2
(1/0…250 MCM)
2 31 N•m
(275 lb.-in.)
23 N•m
(200 lb.-in.)
317…480 A 150-LG5MC
95…240 mm
2
(3/0…500 MCM)
1 33.9 N•m
(300 lb.-in.)
28 N•m
(250 lb.-in.)
625…780 A
➀
—
25…240 mm
2
(#4…500 MCM)
2 42 N•m
(375 lb.-in.)
N/A
970…1250 A
➀
—
25…240 mm
2
(#4…500 MCM)
4 42 N•m
(375 lb.-in.)
N/A