Allen-Bradley 1391B Series, Instruction Manual

Page: 13 / 82

Receiving, Unpacking and Inspection
Chapter 3
3-11
Isolation Transformer
1391 T
First Position Second Posi-
tion Third Posi-
tion
Bulletin
Number
Type
015
Fourth Position
kVA Rating
D
Fifth Posi-
tion
Primary Voltage
& Frequency
T
Secondary
Voltage
–
Description
240/480V AC,
Three- Phase, 60 Hz
240/380/415/480V
AC, Three-Phase,
50/60 Hz
208/230/460/575V
AC, Three-Phase,
60 Hz
Letter
D
E
N
kVA
1.5
3.5
5.0
10.0
12.5
15.0
Num-
ber
015
035
050
100
125
150
Description
Trans-
former
Open
Core and
Coil
Let-
ter
T
Description
230V AC, three-
phase and four
36V AC, single-
phase C.T.wind-
ings
Letter
T
1391
First Position Second Posi-
tion
Bulletin
Number
Accessory
Module
TA2 –
Description
Fits all kVA ratings on 1388, 1389
and 1391 Isolation Transformers.
Let-
ter
TA
2
NEMA Type 1 Transformer Enclosure
Kit