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K6EL
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Maximum Wire Sizes for ZCTs
Wire/cable
600-V vinyl-insulated wire (IV)
Cable (VVR)
Model
Rated
current
Through-hole
diameter
2-wire
3-wire
2-wire
3-wire
OTG-L21
50 A
21 dia.
22 mm
2
14 mm
2
8 mm
2
5.5 mm
2
OTG-L30
100 A
30 dia.
60 mm
2
38 mm
2
38 mm
2
38 mm
2
OTG-L42
200 A
42 dia.
100 mm
2
100 mm
2
100 mm
2
60 mm
2
OTG-L68
400 A
68 dia.
400 mm
2
325 mm
2
325 mm
2
250 mm
2
OTG-L82
600 A
82 dia.
500 mm
2
500 mm
2
400 mm
2
400 mm
2
OTG-L156
1,000 A
156 dia.
500 mm
2
500 mm
2
1,000 mm
2
1,000 mm
2
OTG-CN52
200 A
52 dia.
200 mm
2
200 mm
2
150 mm
2
100 mm
2
OTG-CN77
400 A
77 dia.
500 mm
2
400 mm
2
400 mm
2
325 mm
2
OTG-CN112
600 A
112 dia.
500 mm
2
500 mm
2
1,000 mm
2
1,000 mm
2
K
K
M4 terminal screws
84
77 dia.
157
230
195
70 53
7
195
53
Mounting Hole
Cutout Dimensions
Four, 6.5-dia. holes or
four, M6 screw holes
K
K
260
225
70 53
7
112 dia.
M4 terminal screws
107
200
225
53
Mounting Hole
Cutout Dimensions
Four, 6.5-dia. holes or
four, M6 screw holes
OTG-CN77 (400 A)
OTG-CN112 (600 A)
