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T A a n d T B S e r i e s O p e n C o r e a n d C o i l I n d u s t r i a l C o n t r o l T r a n s f o r m e r s Selection Charts
120 X 240 PRIMARY VOLTS — 12/24 SECONDARY VOLTS — 1Ø, 50/60 Hz
Approximate Dimensions (Inches)(Cm.)
VA
Rating
Catalog
Number ②
Output
Amps A B C D E F
Approximate
Ship Weight
(Lbs.)(Kg.)
Primary Fuse
Block Part
Number
Secondary
Fuse Size
24 Volts
Wiring
Diagram
50 TB181141② 2.08 4.23 3.00 2.70 2.50 2.13 .22 x .50 4 PL112700 3 2 /10 amp A
(10.7) (7.6) (6.8) (6.4) (5.4) (0.6 x 1.3) (1.8)
75 TB181142 ② 3.13 4.74 3.00 2.70 2.50 2.61 .22 x .50 4 PL112700 5 amps A
(12.0) (7.6) (6.8) (6.4) (6.6) (0.6 x 1.3) (1.8)
100 TB181143 ② 4.17 4.90 3.00 2.70 2.50 2.81 .22 x .50 4 PL112700 61 /4 amps A
(12.4) (7.6) (6.8) (6.4) (7.1) (0.6 x 1.3) (1.8)
150 TB181144 ② 6.25 4.78 3.75 3.40 3.13 2.63 .22 x .50 6 PL112701 10 amps A
(12.1) (9.5) (8.6) (8.0) (6.7) (0.6 x 1.3) (2.7)
250 TB181146 ② 10.42 5.08 4.50 3.84 3.75 3.05 .22 x .50 9 PL112702 15 amps A
(12.9) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.1)
350 TB181148 ② 14.58 6.12 4.50 3.84 3.75 4.06 .22 x .50 13 PL112702 20 amps A
(15.5) (11.4) (9.8) (9.5) (10.3) (0.6 x 1.3) (5.9)
500 TB181149 ② 20.83 5.90 5.25 4.47 4.38 4.19 .31 x .50 16 PL112704 30 amps A
(15.0) (13.3) (11.4) (11.1) (10.6) (0.8 x 1.3) (7.3)
750 TB181150 31.25 7.53 5.25 4.47 4.38 5.25 .31 x .50 24 PL112704 — A
(19.1) (13.3) (11.4) (11.1) (13.3) (0.8 x 1.3) (10.9)
1000 TB181151 41.67 7.43 6.75 5.72 5.75 3.81 .31 x .50 26 PL112705 — A
(18.9) (17.1) (14.5) (14.6) (9.7) (0.8 x 1.3) (11.8)
② See chart for integrally mounted fuse block catalog number suffix.
208/240/277/380/480 PRIMARY VOLTS — 24 SECONDARY VOLTS — 1Ø, 50/60 Hz
Approximate Dimensions (Inches)(Cm.)
VA
Rating
Catalog
Number
Output
Amps A B C D E F
Approximate
Ship Weight
(Lbs.)(Kg.)
Primary Fuse
Block Part
Number
Secondary
Fuse Kit ①
PartNumber
Secondary
Fuse Size
24 Volts
Wiring
Diagram
50 TB81321 2.08 4.08 3.75 3.40 3.13 2.19 .22 x .50 4 PL112701 * 3 2 /10 amp D
(10.4) (9.5) (8.6) (8.0) (5.6) (0.6 x 1.3) (1.8)
75 TB81322 3.13 4.31 3.75 3.40 3.13 2.31 .22 x .50 5 PL112701 * 5 amps D
(10.9) (9.5) (8.6) (8.0) (5.9) (0.6 x 1.3) (2.3)
100 TB81323 4.17 4.52 3.75 3.40 3.13 2.63 .22 x .50 5 PL112701 * 6 1 /4 amps D
(11.5) (9.5) (8.6) (8.0) (6.7) (0.6 x 1.3) (2.3)
150 TB81324 6.25 4.75 4.50 3.84 3.75 3.05 .22 x .50 9 PL112702 * 10 amps D
(12.1) (11.4) (9.8) (9.5) (7.7) (0.6 x 1.3) (4.1)
250 TB81325 10.42 5.24 4.65 4.15 4.06 3.25 .22 x .50 11 PL112702 * 15 amps D
(13.3) (11.8) (10.5) (10.3) (8.3) (0.6 x 1.3) (5.0)
350 TB81326 14.58 6.02 5.25 4.47 4.38 4.00 .31 x .50 18 PL112704 * 20 amps D
(15.3) (13.3) (11.4) (11.1) (10.2) (0.8 x 1.3) (8.2)
500 TB81327 20.83 6.51 5.25 4.47 4.38 4.19 .31 x .50 19 PL112704 * 30 amps D
(16.5) (13.3) (11.4) (11.1) (10.6) (0.8 x 1.3) (8.6)
750 TB81328 31.25 7.08 6.75 5.78 5.75 3.81 .31 x .50 26 PL112705 * — D
(18.0) (17.1) (14.7) (14.6) (9.7) (0.8 x 1.3) (11.8) 33 amps
1000 TB81329 41.67 8.10 6.75 5.72 5.75 4.63 .31 x .50 33 PL112705 * — D
(20.6) (17.1) (14.5) (14.6) (11.8) (0.8 x 1.3) (15.0)
① Secondary Fuse Kit PL112603 may be substituted for PL112600 thru PL112602 when Primary Fuse Kit is used. See page 79.
* See fusing chart for secondary fuse kits.