Cubicle And Ventilation - Siemens UL 1066 Operating Instructions Manual

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
Frame
Frame Interrupting
rating
size
(A)
800
1600
II
2000
3200
800
II Fused 1600
2000
4000
5000
III 3200
4000
5000
3200
III Fused 4000
5000
1600
II 4-pole 2000
3200
III 4-pole 5000
1) Cubicle height given for use with insulating liner on cubicle top or cradles equipped with optional cover
2) Provided by cradle holes
5 – 4
Minimal cubicle dimensions
Class
Width W1 Height H
(inch)
N, S, H, L 22
N, S, H, L 22
F 22
H, L 32
M 32
F 32
N, S, H 32
H, L 42
Insulating liner
Depth D1 Width W2
(inch) (inch) (inch)
1)
22.5 19.5 18.5
1)
22.5 19.5 18.5
1)
22.5 25 18.5
1)
22.5 19.5 28.5
30 19.5 28.5
1)
22.5 19.5 28.5
1)
22.5 19.5 28.5
1)
22.5 19.5 39
Cubicle ventilation
dimensions
Top
Depth D2
(square
(inch)
inch)
10.5
10.5 55
10.5 143
48
10.5
(2 x 24)
48
10.5
(2 x 24)
10.5 88
10.5
55
10.5 48 (2 x 24)
(1)
(2)
(3)
Bottom
(square
inch)
not required
2)
55
2)
137
2)
88
2)
88
2)
88
not required
2)
55
2)
88