SE Digest 178

Low-Voltage Dry-Type Distribution Transformers

Resin Encapsulated Export Model and Buck Boost Transformers

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Class 7400 and 7414 / Refer to Catalogs 7400CT9601 and 7414CT0201

Resin Encapsulated Export Model and Buck Boost Transformers Single Phase Export Model

These general purpose transformers accommodate voltage systems world wide. Export model transformers 10 kVA and smaller, CE marked in addition to being cULus Listed. For CE marked transformers in other ratings, contact your local Schneider Electric representative for CE marked transformers up to 300 kVA, single and three phase. Table 14.16: Single-Phase—110 / 220 Vac Secondary; 50/60 Hz; cULus Listed (240 x 480 Vac Primary to 120 / 240 Vac Secondary - 60 Hz only)

DegreeC Temperature Rise

220 x 440 Primary Catalog No.

Insulation Class

Weight (lbs) [21]

Enclosure [22]

Full Capacity Taps

kVA

1 2 3 5

1S67F 2S67F 3S67F 5S67F 7S67F 10S67F

21.2 39.1 55.2 135 165 165

7A 9A

190/200/208/220 x 380/400/416/440 190/200/208/220 x 380/400/416/440 190/200/208/220 x 380/400/416/440 190/200/208/220 x 380/400/416/440 190/200/208/220 x 380/400/416/440 190/200/208/220 x 380/400/416/440

115 115 115 115 115 115

180 180 180 180 180 180

10A 13B 13B 13B

7.5 10

Sealed Single-Phase Buck and Boost When buck and boost transformers are interconnected as an autotransformer, they can supply small changes in voltage. Wiring diagrams and sizing are available from catalog 7414CT0201 or www.buckboostcalculator.com. Units can also be used as isolation transformers for: 120 x 240 to 12/24 or 16/32 and 240 x 480 to 24/48 by connecting using the diagram on the nameplate. NOTE: When used to supply a three-phase four-wire load, the source must be three phase four-wire.

240 x 480 Vac Primary 60 Hz 24/48 Vac Secondary

120 x 240 Vac Primary 60 Hz

DegreeC Temperature Rise

Weight (lbs) [21]

Enclosure [22]

Insulation Class

kVA

12/24Vac Secondary 50SV43A 100SV43A 150SV43A 250SV43B 500SV43B 750SV43F

16/32Vac Secondary 50SV46A 100SV46A 150SV46A 250SV46B 500SV46B 750SV46F

0.05

50SV82A 100SV82A 150SV82A 250SV82B 500SV82B 750SV82F

4.2 4.5 6.2

1A 2A 3A 4A 5A 6A 7A 8A 9A

55 55 55 80 80

105 105 105 130 130 180 180 180 180 180

0.1

0.15 0.25

10.5 13.8 15.5 21.2 30.1 39.1

0.5

0.75

115 115 115 115 115

1

1S43F 1.5S43F 2S43F

1S46F 1.5S46F 2S46F

1S82F 1.5S82F 2S82F

1.5

2 3

* See table 14.17 3 kVA Buck Boost

3S43F

3S46F

3S82F

60

3 kVA Buck Boost Table 14.17: Enclosure Dimensions Enclosure Number/ Style Height

Depth

Width

Mounting

in.

mm in.

mm in.

mm

1 2 3 4 5 6 7 8 9

A A A A A A A A A A A C B C B C X X X X X

5.00 5.50 5.00 5.50 6.19 6.69 8.13 8.25 9.56

127 140 127 140 157 170 270 210 243 267 319 343 375 375 508 559

4.47 4.47 4.85 5.23 6.19 6.19 6.94 8.68 8.68 8.62 8.62

114 114 123 133 157 157 176 220 220 219 219 375 248 485 381 635

3.44 3.44 3.75 4.06 4.69 4.69 5.31 6.56 6.56 6.50 6.50

87 87 95

Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Wall Floor Floor

103 119 119 135 167 167 165 165 229 298 311 343 343

Style A—Type 3R Rated

Style B—Type 3R Rated

10 11 12 13 14 15 16 51 52 53 54 55

10.50 12.56 14.5 13.50 14.75 14.75 20.00 22.00

* 3 kVA Buck Boost

— 8.62

— 6.5

— —

14.75 9.75 19.1

9

11.75 2.25 13.5 13.5 7.75 13.75 16.38 13.75 16.25

15 25 10

9.5 12 24 23

24 30 61 58 80

25 35 55 65 80

20 35 42 35 41

14 TRANSFORMERS

13.75 21.5 25.5 31.5

Style C—Type 3R Rated

Style X—Type 4X Rated

31.5 Floor These dimensions are not for construction. Contact you local Schneider Electric representative for certified prints. Fingersafe™ terminal block cover kits for encapsulated transformers can be used to meet touch-safe requirements.

Kit Catlog Number

Description

Enclosure 7A (1kVA) 9A (2kVA) 10A (3kVA)

Terminal Block H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 and X1, X2, X3, X4 Terminal Block H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 and X1, X2, X3, X4 Terminal Block H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 and X1, X2, X3, X4 Terminal Block H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 and X1, X2, X3, X4

7400ENT9 7400ENT11 7400ENT11 7400ENT13

13B (5–10 kVA)

[21] Not for construction, Contact your local Schneider Electric representative for certified prints. [22] For enclosure styles, see Enclosure Dimensions, page 14-12

14-12

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