Welding Transformers

Model

STM - 200

STM - 400

STM - 303

STM - 403

Welding Current Range(Amps)

35 - 200

50 -400

42- 300

52- 400

Open Circuit Voltage(Volts)

65

65

66

66

Welding Current (Amps)

@ 100 % duty cycle

100

210

225

300

@ 55% duty cycle(Amps)

150

300

240

300

@ 35% duty cycle(Amps)

200

400

300

400

Recommended(SWG)

Welding Electrode

Size

8 - 16

4 -14

6-14

4-14

Rated K.V.A

8

21

6

7

Fuse Rating Max.

@ 440 Volts

20

55

55

60

@ 220 Volts

40

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Primary Supply

230 /440

440

440

440

Phase(no.)

1 -2

2 lines of 3phase Supply 440 V

3

3

Dimension

Length(mm)

480

650

650

650

Width(mm)

380

485

485

485

Height(mm)

470

560

560

560