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Selection Charts
SPECIFICATIONS ① - SINGLE PHASE
120 X 240 PRIMARY VOLTS — 12/24 SECONDARY VOLTS — 60 Hz
Catalog Number Insulating
Transformer Rating
Secondary Maximum
Current Output
12 V 24 V
Height
(Inches)(Cm.)
Width
(Inches)(Cm.)
Depth
(Inches)(Cm.)
Weight
(Lbs.)(Kg.)
Dimensional
Drawings
T181047 0.05 kVA 4.16 2.08 6.41 (16.3) 3.14 (8.0) 3.05 (7.7) 4 (1.8) A
T181048 0.10 kVA 8.32 4.16 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 5 (2.3) A
T181049 0.15 kVA 12.52 6.25 7.16 (18.2) 3.89 (9.9) 3.67 (9.3) 7 (3.2) A
T181050 0.25 kVA 20.80 10.40 8.68 (22.0) 4.08 (10.4) 3.88 (9.9) 10 (4.5) B
T181051 0.50 kVA 41.60 20.80 9.06 (23.0) 4.37 (11.1) 4.20 (10.7) 15 (6.8) B
T181052 0.75 kVA 62.50 31.25 9.68 (24.6) 4.75 (12.1) 4.51 (11.5) 19 (8.6) B
T111683 1.00 kVA 83.20 41.60 10.50 (26.7) 5.50 (14.0) 5.13 (13.0) 24 (10.9) B
T111684 1.50 kVA 125.00 62.50 11.62 (29.5) 5.50 (14.0) 5.13 (13.0) 30 (13.6) B
T111685 2.00 kVA 166.00 83.20 13.00 (33.0) 5.50 (14.0) 5.13 (13.0) 38 (17.2) B
T111686 3.00 kVA 250.00 125.00 11.50 (29.2) 10.31 (26.2) 7.13 (18.1) 55 (24.9) C
T111687 5.00 kVA 416.60 208.00 14.38 (36.5) 10.31 (26.2) 7.13 (18.1) 75 (34.0) C
T211688 7.50 kVA 625.00 312.50 20.81 (52.9) 11.12 (28.2) 10.84 (27.5) 125 (56.7) D
T211689 10.00 kVA 833.00 416.60 20.81 (52.9) 11.75 (29.8) 11.59 (29.4) 160 (72.6) D
120 X 240 PRIMARY VOLTS — 12/24 SECONDARY VOLTS — 60 Hz NEMA 4X
Catalog Number Insulating
Transformer Rating
Secondary Maximum
Current Output
12 V 24 V
Height
(Inches)(Cm.)
Width
(Inches)(Cm.)
Depth
(Inches)(Cm.)
Weight
(Lbs.)(Kg.)
Dimensional
Drawings
B1250V0280X 0.25 kVA 20.80 10.40 8.7 (22.0) 4.1 (10.4) 3.9 (9.9) 10 (4.5) J
B1500V0280X 0.50 kVA 41.60 20.80 9.7 (24.6) 4.75 (12.0) 4.5 (11.4) 15 (6.8) J
B1750V0280X 0.75 kVA 62.50 31.25 9.7 (24.6) 4.75 (12.0) 4.5 (11.4) 19 (8.6) J
B1001K0280X 1.00 kVA 83.20 41.60 12.5 (31.7) 5.5 (13.9) 5.13 (13.0) 24 (10.9) J
B1105K0280X 1.50 kVA 125.00 62.50 12.5 (31.7) 5.5 (13.9) 5.13 (13.0) 30 (13.6) J
B1002K0280X 2.00 kVA 166.00 83.20 12.5 (31.7) 5.5 (13.9) 5.13 (13.0) 38 (17.2) J
B1003K0280X 3.00 kVA 250.00 125.00 14.0 (35.5) 10.31 (26.1) 7.13 (18.1) 55 (24.9) J
B1005K0280X 5.00 kVA 416.60 208.00 14.0 (35.5) 10.31 (26.1) 7.13 (18.1) 75 (34.0) J
B1007K0280X 7.50 kVA 625.00 312.50 21.19 (53.8) 13.5 (34.2) 10.84 (27.5) 125 (56.7) J
B1010K0280X 10.00 kVA 833.00 416.60 21.19 (53.8) 13.5 (34.2) 10.84 (27.5) 160 (72.6) J
① All units have ground studs for use with non-metallic conduit. All sizes of 0.75 kVA and less are suitable for 50/60 Hertz. Additional field wiring box may be required when using units as
autotransformers.
Dimensional Drawings page 136.