Figure 1: Type 1 & 3R
E
D
C L
(6) "F" Dia. mounting holes (30-200A)
(4) "F" Dia. mounting holes (400-1200A)
C
B
VBII Design Double Throw Dimensions – Inches
Catalog Number
Figure 1 (30-1200A Type 1 & 3R)
DTNF221, DTNF321, DTNF361, DTNF361R
DTF321, DTF321R, DTF361
DTNF222, DTNF322, DTNF362, DTNF362R
DTF322, DTF322R, DTF362
DTNF223, DTNF323, DTNF323R, DTNF363, DTNF363R,
DTGNF223R, DTGNF223NR, DTGNF323R, DTGNF323NR
DTF323, DTF323R, DTF363, DTF363R
DTNF224, DTNF224R, DTNF324R, DTNF324, DTNF364R,
DTGNF224R, DTGNF224NR, DTGNF324R, DTGNF324NR
DTF224, DTF224R, DTF324, DTF324R, DTF364, DTF364R
DTF325, DTF326, DTF365
DTNF225, DTNF225R, DTNF325, DTNF365, DTNF365R
DTNF326, DTNF366, DTNF366R
DTNF327, DTNF367, DTNF367R
DTNF368, DTNF368R
NFR451DTK ➂ , NFR452DTK ➂ , NFR453DTK ➂
NF454DTK ➁➂ , NFR454DTK ➁➂
NF455DTK ➂ , NF456DTK ➂ , NF457DTK ➂
NFR455DTK ➂ , NFR456DTK ➂ , NFR457DTK ➂
Figure 2 (30-200A Type 12 & 4X)
DTNF361J, DTNF361S
DTNF362J, DTNF362S
DTNF363J, DTNF363S
DTNF364J, DTNF364S
NF355HDTK➁, NF355SSDTK➁
F353SSDTK ➁➂
F354SSDTK ➁➂
F355SSDTK ➁➂
➀ (3) Mounting holes supplied (1 at top).
➁ (4) Mounting holes supplied.
➂ These switches are not Type VBII design.
➃ Drip hood not shown but provided on Type 3R enclosures.
Note: For inches/ millimeters conversion, multiply inches by 25.4.
➃
C
B
This mounting hole
omitted on 30-100A
Type VBII Non-Fusible
switches
Enclosure
A
24.50
29.12
24.88
33.45
27.62
36.44
36.00
49.44
73.54
57.71
57.71
71.65
71.65
24.63
37.25
63.31
24.42
24.80
27.54
35.93
53.82
37.00
50.90
74.50
Figure 2: Type 4X & 12
E
A
D
C L
(6) "F" Dia. mounting holes (30-200A)
(4) "F" Dia. mounting holes (400-1200A)
B
C
9.53
6.09
9.53
6.09
11.50
6.09
11.50
6.09
12.18
6.09
12.18
6.09
19.12
6.42
19.12
6.42
28.22
9.44
28.22
9.44
28.22
9.44
41.60
9.44
41.60
9.44
11.63
4.78
19.19
6.32
27.00
8.88
9.65
6.48
11.61
6.48
12.29
6.48
19.24
6.78
22.66
7.25
11.62
5.50
19.16
6.48
25.00
8.92
C
C
B
Mounting
D
E
19.00
6.75
23.50
6.75
19.00
9.38
27.50
9.38
19.36
8.00
28.11
8.00
31.00
15.00
44.50
15.00
65.50
16.00
49.75
16.00
49.75
16.00
63.70
32.00
63.70
32.00
9.25 ➀
21.50
16.00 ➁
33.50
22.25 ➁
58.50
26.65
5.47
27.03
8.00
29.77
8.47
38.16
13.44
56.20
18.00
39.50
9.00
63.27
16.12
76.69
20.25
A
F
0.268
0.268
0.268
0.268
0.268
0.268
0.44
0.44
0.56
0.56
0.56
0.56
0.56
0.25 ➀
0.56 ➁
0.56 ➁
0.27
0.27
0.27
0.33
0.56
0.26
0.50
0.56
47
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