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Appendix A
Dimensions
Catalog Number
kVA
1391-T015DT
1.5
1391-T015ET/NT
1391-T035DT
3.5
1391-T035ET/NT
1391-T050DT
5.0
1391-T050ET/NT
1391-T100DT
10.0
1391-T100ET/NT
1391-T125DT
12.5
1391-T125ET/NT
1391-T150DT
15.0
1391-T150ET/NT
A-2
Figure A.2
1391 Isolation Transformer Dimensions
Dimensions are in inches and (millimeters)
CAT. NO.
FREQUENCY
POWER RATING
PRIMARY VOLTAGE
SECONDARY VOLTAGE
INSULATION CLASS
NO. OF PHASES
VENDOR PART NO.
ALLEN–BRADLEY
D
C Max.
A
B
9.00 (228)
10.00 (254)
9.00 (228)
10.00 (254)
11.00 (279)
11.00 (279)
11.00 (279)
11.00 (279)
11.00 (279)
11.00 (279)
11.00 (279)
11.00 (279)
12.00 (305)
12.50 (317)
12.00 (305)
12.50 (317)
12.00 (305)
12.50 (317)
12.00 (305)
12.50 (317)
13.00 (330)
14.00 (356)
13.00 (330)
14.00 (356)
Slot
0.22 (5.6) R
0.53
(13.5)
0.44
(11.2) Ref.
C
D
13.00 (330)
5.00 (127)
13.00 (330)
5.00 (127)
14.00 (356)
6.00 (152)
14.00 (356)
6.00 (152)
14.00 (356)
6.00 (152)
14.00 (356)
6.00 (152)
16.00 (406)
8.00 (203)
16.00 (406)
8.00 (203)
16.00 (406)
8.00 (203)
16.00 (406)
8.00 (203)
17.50 (444)
9.50 (241)
17.50 (444)
9.50 (241)
PRIMARY
LINE INPUT
CONNECT
VOLTAGE
ON TERM.
H1 TO H3
120
H1 & H4
H2 TO H4
B
240
H2 TO H3
H1 & H4
SECONDARY
VOLTAGE OUT
VOLTAGE
OF TERMINALS
Max.
+5%
X0 & X3
NOM.
X0 & X2
–5%
X0 & X1
E
A Max.
E
Weight
3.10 (79)
27 (12.2)
3.50 (89)
40 (18.2)
4.50 (114)
60 (27.2)
4.50 (114)
85 (38.6)
5.25 (133)
75 (34.0)
6.00 (152)
100 (45.4)
5.85 (149)
112 (50.8)
5.85 (149)
140 (63.6)
5.63 (143)
126 (57.1)
5.63 (143)
160 (72.7)
6.00 (152)
150 (68.0)
6.00 (152)
200 (90.9)
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