BuyLog Flippingbook AUG 2026

CONTROL POWER AND ENCAPSULATED TRANSFORMERS, BUYLOG SECTION 10

10-11

— Open core and coil transformers Options and fusing guide

TRANSFORMER FUSING OPTIONS Accessory description

Accessory description

Ordering code

Ordering code 9T58K0000G24

(1) Quarter-inch fuseholder

(2) CC + (1) Quarter-inch fuseholder

9T58K0000G48

(1) Midget fuseholder

9T58K0000G42

(2) CC + (1) Midget fuseholder

9T58K0000G38

(1) H/K fuseholder

9T58K0000G10

(2) CC + (1) H/K fuseholder

9T58K0000G18

(2) CC fuseholder

9T58K0000G43

(2) Fuse clips

9T58K0000G09

(2) H/K fuseholder

9T58K0000G05

Jumper links

9T58K0000G01

FUSE GUIDE Midget class cc rejection fuse

Transformer continuous power rating (VA)

50

75

100

150

200

250

300

375 500 Fuse rating (amperes)

Primary voltage

100 110 120 200 208 220 230 240 277 380 400 416 440 460 480 550 575 600

1.50 1.25 1.25 0.75 0.60 0.60 0.60 0.60 0.50 0.30 0.30 0.30 0.30 0.30 0.30 0.25 0.25 0.25

2.00 2.00 1.60 1.00 1.00 1.00 0.80 0.80 0.80 0.50 0.50 0.50 0.50 0.40 0.40 0.40 0.30 0.30

3.00 2.50 2.50 1.50 1.25 1.25 1.25 1.25 1.00 0.75 0.75 0.60 0.60 0.60 0.60 0.50 0.50 0.50

4.00 4.00 3.00 2.00 2.00 2.00 1.60 1.60 1.60 1.00 1.00 1.00 1.00 0.80 0.80 0.80 0.75 0.75

3.00 5.00 5.00 3.00 2.50 2.50 2.50 2.50 2.00 1.50 1.50 1.25 1.25 1.25 1.25 1.00 1.00 1.00

4.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 2.50 1.60 1.60 1.60 1.60 1.60 1.50 1.25 1.25 1.25

5.00 4.00 4.00 4.00 4.00 4.00 3.00 3.00 3.00 2.00 2.00 2.00 2.00 1.60 1.60 1.60 1.50 1.50

6.00 5.00 5.00 5.00 5.00 5.00 4.00 4.00 4.00 2.50 2.50 2.50 2.50 2.00 2.00 2.00 1.60 1.60

8.00 7.00 6.00 4.00 4.00 3.00 3.00 3.00 5.00 3.00 3.00 3.00 3.00 3.00 3.00 2.50 2.50 2.50

For motor control circuits fusing, refer to NEC 430-72.

SECONDARY FUSE SELECTION Glass fuse

Transformer continuous power rating (VA)

50

75

100

150

200

250

300

375

500

750 1000 1500 2000

3000 Fuse rating (amperes)

Secondary voltage

12 24 36 48 95

6.00 10.00 12.00 15.00 20.00 25.00 30.00

- - -

-

- - - -

- - - -

- - - -

- - - -

- - - - -

3.00 2.00 1.50 0.80 0.75 0.60 0.60 0.40 0.30 0.30 0.30

5.00 3.00 2.50 1.25 1.00 1.00 1.00 0.60 0.50 0.50 0.50

6.00 10.00 12.00 12.00 15.00

25.00 15.00

4.00 3.00 1.60 1.50 1.25 1.25 0.80 0.75 0.60 0.60

6.00 5.00 2.50 2.00 2.00 2.00 1.00 1.00 1.00 1.00

8.00 10.00 12.00

6.00 3.00 3.00 2.50 2.50 1.60 1.50 1.25 1.25

8.00 10.00 12.00 12.00

4.00 3.00 3.00 3.00 2.00 1.60 1.60 1.60

5.00 4.00 4.00 4.00 2.00 2.00 2.00 2.00

6.00 5.00 5.00 5.00 3.00 2.50 2.50 2.50

8.00 12.00 15.00 20.00 25.00 7.00 10.00 12.00 20.00 25.00 7.00 10.00 12.00 20.00 20.00 6.00 10.00 12.00 15.00 20.00

110 115 120 208 220 230 240

30.00 30.00 30.00 20.00 20.00 20.00 15.00

4.00 3.00 3.00 3.00

6.00 5.00 5.00 5.00

8.00 12.00 15.00 7.00 10.00 12.00 7.00 10.00 12.00 6.00 10.00 12.00