Instruction Manual for ESAB models including: LAF 631, LAF 631 Welding Power Source, LAF 631, Welding Power Source, Power Source, Source

LAF 631

D006196, D, en-GB, Approved

Semcon Informatic

LAF 631

[PDF] LAF 631 - NET

Spare parts may be ordered through your nearest ESAB dealer, see esab.com. When ordering, please state product type, serial number, denominations and ...

Spare parts list (Replacement parts) (EN (GB))

LAF 631/1001/1251/1601 - ESAB United States


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0459 839 056
LAF 631

Spare parts list
0459 839 056 GB 20241101

Valid for: serial no. 935-, 126-, 536-, 744-xxx-xxxx

Ordering no. 0460 512 880

Product Welding power source LAF 631

Spare parts may be ordered through your nearest ESAB dealer, see esab.com. When ordering, please state product type, serial number, denominations and ordering numbers according to the spare parts list. This facilitates dispatch and ensures correct delivery.
Maintenance and repair work should be performed by an experienced person, and electrical work only by a trained electrician. Use only recommended spare parts.

TABLE OF CONTENTS
SPARE PARTS ......................................................................................... 4

Rights reserved to alter specifications without notice. 0459 839 056

© ESAB AB 2024

SPARE PARTS

SPARE PARTS

C = Component designation in the circuit diagram

Item Qty Ordering no.

Denomination

Notes

0460 512 880 Welding power source LAF 631

2 1 0320 415 881 Diode bridge

3 6 0490 600 626 Diode

4 2 0193 586 101 Automatic fuse

5A

5 1 0191 085 203 Capacitor

6 2 0194 077 008 Automatic fuse

16 A, 400 V

7 1 0193 503 101 Contactor

8 1 0805 586 131 Contactor

10 1 0320 746 002 Main switch

Black

11 2 0457 583 001 Foot

12 1 0193 586 104 Automatic fuse

20 A

13 1 0320 620 887 Thyristor bridge

14 2 0490 600 606 Diode

15 3 0320 946 001 Thyristor

16 1 0319 445 002 Thermal guard

17 3 0041 051 606 Contact protection

18 1 0369 827 001 Fan

19 1 0192 576 303 Indicating lamp (yellow)

20 1 0192 576 004 Indicating lamp (white)

21 1 0467 970 882 Transformer

21.1 3 0457 565 880 Transformer coil

22 1 0487 399 880 Circuit board

Valid from serial no. 935-xxx-xxxx Circuit board configured for LAF 631 version

23 1 0460 092 002 Control transformer

24 2 0467 176 001 Handle

25 1 0321 003 881 Resistor

26 1 0321 489 881 Base current bridge

27 1 0459 854 002 Insulation

0368 544 006 Sleeve socket

28-pole, Burndy

28 1 0457 564 880 Inductor

29 1 0551 202 980 Shunt

30 1 0523 300 201 Measure terminal

31 1 0158 117 880 Cable inlet

32 1 0440 203 880 EMC filter board

Valid from serial no. 744-xxx-xxxx

C
V2 FU3 C4 FU1 KM1 KM2 QF
FU2
V4 THY1-THY3 ST1 RC1-5 M1 HL2 HL1 TM1
AP1
TC1
R3
AP2 XS4 L1 RS1
2AP3

0459 839 056

-4-

© ESAB AB 2024

SPARE PARTS

0459 839 056

-5-

© ESAB AB 2024

For contact information visit esab.com ESAB AB, Lindholmsallén 9, Box 8004, 402 77 Gothenburg, Sweden, Phone +46 (0) 31 50 90 00
manuals.esab.com



References

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