5 – 4
5.1.3
Cubicle and ventilation
(1)
Upper ventilation opening
(2)
Insulating liner use NEMA GPO-3, min. 0.094“ thick or comparable material
(3)
Lower ventilation opening
1) Cubicle height given for use with insulating liner on cubicle top or cradles equipped with optional cover
2) Provided by cradle holes
Frame
size
Frame
rating
(A)
Interrupting
Class
Minimal cubicle dimensions
Insulating liner
dimensions
Cubicle ventilation
Width W1
(inch)
Height H
(inch)
Depth D1
(inch)
Width W2
(inch)
Depth D2
(inch)
Top
(square
inch)
Bottom
(square
inch)
II
800
N, S, H, L
22
22.5
1)
19.5
18.5
10.5
not required
1600
2000
3200
N, S, H, L
22
22.5
1)
19.5
18.5
10.5
55
55
2)
II Fused
800
F
22
22.5
1)
25
18.5
10.5
143
137
2)
1600
2000
III
4000
H, L
32
22.5
1)
19.5
28.5
10.5
48
(2 x 24)
88
2)
5000
3200
M
32
30
19.5
28.5
10.5
48
(2 x 24)
88
2)
4000
5000
III Fused
3200
F
32
22.5
1)
19.5
28.5
10.5
88
88
2)
4000
5000
II 4-pole
1600
N, S, H
32
22.5
1)
19.5
28.5
10.5
not required
2000
3200
55
55
2)
III 4-pole
5000
H, L
42
22.5
1)
19.5
39
10.5
48 (2 x 24)
88
2)
(1)
(2)
(3)
Summary of Contents for UL 1066
Page 56: ...7 5 7 2 Frame size II fused ...
Page 58: ...7 7 ...
Page 63: ...7 12 8 27 210 0 8 27 210 0 8 27 210 0 3 75 95 2 ...
Page 64: ...7 13 ...
Page 65: ...7 14 7 7 Frame size III fuse carriage ...
Page 66: ...7 15 ...
Page 69: ...7 18 7 9 External sensor for neutral conductor WLNCT2 ...
Page 70: ...7 19 WLNCT3 ...
Page 85: ...9 5 I tripping Ground fault tripping ...
Page 231: ...15 12 Pre assembling the locking module Installing 0767 1 2 3 4 6 5 ...
Page 232: ...15 13 1 Socket head cap screw M5 with washer and nut 7 8 Size 4 5 Nm 45 lb in ...
Page 289: ...23 7 23 3 3 Installing arc chutes 1 2 6 5 PH 2 0043 02 3 4 5 6 For frame size III 3 PH 2 ...
Page 298: ...23 16 6 7 8 9 5 2 1 Size 5 mm ...
Page 333: ......