OTC Welbee M350 II, Owner'S Manual

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This chapter contains the parts list of welding power source, and reference materials for setting the welding conditions.
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This section shows the parts list of welding power source.
• When placing an order, provide your dealer with the necessary information: the model name of welding power source, the
name of the part to be replaced, and the part number (or specifications if part has no number).
The period of supplying parts will be at the shortest approximately seven years after the welding power source is
manufactured. It may change, however, if the parts from other companies cannot be supplied.
• The codes in the table correspond to those in the schematic diagram/parts layout drawing.
Code Part No. Product Name Specifications
Q’ty
Remarks
WB-M352 WB-M502
NF
100-1683
Circuit protector
IULK-1-111-62F-75A-AC480V 1 -
100-1568 CA3-X0-19-177-41D-C - 1
PL1
4600-341
Pilot lamp
N20010A7SW 1 -
100-0171 N46010A7KW-01 ROHS - 1
DR1 100-1938 Diode module PGH150N16 1 1
DR2 to 5 4531-308 Diode module DBA200UA60 4 -
DR2 to 6,
8 to 11
4531-119 Diode module DSEI 2X101-06A - 9
DR6 100-0179 Diode module DSEI 2X101-12A 1 -
DR7 4531-505 Diode S2L60 1 1
TR1 to 4
4534-416
IGBT module
CM100DUS-12F 4 -
100-1750 CM300DU-12NFH - 4
TR5 100-2219 IGBT module 1MBI300HH-120L-50 1 -
SCR1
4530-137
Thyristor
SG25AA60 1 -
4530-412 SG25AA20 - 1
CT1 4810-030 Current transformer W-W03029 1 1
CT2 100-0956 Hall current detector CS-40GEH 1 1
CT3 4810-030 Current transformer W-W03029 1 -
T1 P30086B00
Inverter transformer
P30086B00 1 -
T1
，
T2
P30089B00 P30089B00 - 2
T2 W-W03830 Auxiliary transformer W-W03830 1 -
T3 W-W03674 Auxiliary transformer W-W03674 - 1
L1
P30086L00
Input reactor
P30086L00 1 -
P30089L00 P30089L00 - 1
L2
P30087C00
DC reactor
P30087C00 1 -
P30089C00 P30089C00 - 1
L3 100-1950 Ferrite core TW70W(R402715) 2 1
L4 to 5
100-2321 Ferrite core TW70W(R311019)
2 -
L4 to 7 - 4
L6 100-0620 Ferrite core SN-20 OR 23.5×9.5×12.6 1 -
L7 P30139C00 Reactor P30139C00 1 -
L8 100-1950 Ferrite core TW70W(R402715) 1 -
L8
，
9, 11 100-0618 Ferrite core HM2AT4815 - 3
L10 100-0620 Ferrite core SN-20 OR 23.5×9.5×12.6 - 2
THP1 4614-051 Thermostat 67L090 - 1
THP2
4258-046
Thermostat
US-602AXTTL 120 ºC 1 -
100-1824 US-602SXTTAS 140 ºC - 1
THP3 4614-057 Thermostat 67L080 1 -
FM1 to 3 100-3207 Fan 9WV1224P1H003-X 3 3
FM4 K5791K00 Fan K5791K00 1 1
SH
4403-134
Meter shunt
SH400A/60mV 1 -
4403-132 SH600A/60mV - 1
R1 to 3 100-1528 Surge absorber TND14V-911KB0LLAA0 3 3