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DA300P Welder Parts List | Genuine Spare Parts

To help engineers and procurement personnel quickly search and purchase, we have meticulously compiled all core part models, names, and specifications for the OTC Daihen DA300P TIG Welding Machine. This list has been professionally proofread to correct original manual unit errors (such as confusing O with 0, or garbled resistor symbols) and name typos, consolidating identical parts for clear display.

I. DA300P Spare Parts Real-Time Search Table

You can directly enter the Part No. (Order No.), Symbol, or Name in the search box below, and the table will automatically filter the required parts for you:

Part No. (Order No.) Symbol Name Specifications
4614-109NF1Main SwitchIELK111-34459-1-V
4519-036LF1FilterFS5681-33-99
4600-360PL1Indicator LightN46010A7KW-01
4531-204DR1DR/CR Composite ModuleDFA75BA160
4531-308DR2〜6High-Speed Diode ModuleDBA200UA60
4534-418TR1〜4IGBT ModuleCM150DY-12NF
4534-410TR5, 6IGBT ModuleCM300DU-12F
4810-030CT1Current Transformer (CT)W-W03029
4406-009CT2Hall Effect SensorHA400S3EH
P10293B00T1Inverter TransformerP10293B00
4810-916T2TransformerW-W02936
P10464C00C.CCoupling CoilP10464C00
P10293L00L1DC ReactorP10293L00
4739-497L2, L4〜7, L8, L18Ferrite CoreE04RA400270150
4739-543L3, L9〜12, L14〜17Ferrite CoreE04RA310190100
L13Not Used
4258-040THP1Thermostat Switch67L085
4614-051THP2Thermostat Switch67L090
4258-033THP3Thermostat Switch67L070
4813-046SOL1Solenoid ValveTYPE5511 DC24V
4255-016PS1Pressure SwitchW-W00032
P30016L00FM1Cooling FanP30016L00
P10346L00FM2Cooling FanP10346L00
4519-029SC1〜8Surge Voltage Absorber1.5KE250CA
4536-119R1〜4VaristorENC911D-14A
4509-018R5Metal Oxide Film ResistorRS2B 510ΩJ
4509-819R6Cement Resistor40SH 200Ω-JA
4509-825R7Cement Resistor20SH 15kΩ-JA
4509-704R8〜13, R20〜23, R29〜31Carbon Film ResistorRD1/4W 1kΩJ
4509-121R14〜17Metal Oxide Film ResistorRNP-50SC 10ΩF
4504-411R18a〜c, R19a〜cWirewound ResistorNCRF24V 30ΩJ
4504-503R24Wirewound ResistorGG80W 200ΩJ
4509-922R25Cement Resistor20SH 10Ω-JA
4509-113R26Metal Oxide Film ResistorRS3B 20kΩJ
4509-046R27Metal Oxide Film ResistorRS1B 10kΩJ
4536-112R28VaristorENE821D-14A
4509-128R32〜34Metal Oxide Film ResistorRS2B 200kΩJ
4517-452C1Ceramic Capacitor2kV 0.0022μF
4518-519C2〜5Polyester Film CapacitorMIC-ST3D182J
4518-411C6a,b, C7Polyester Film CapacitorEM351200D0BA1HP
4517-458C8Ceramic Capacitor2kV 0.001μF
4517-459C9a,b, C10Ceramic CapacitorDEHR32E103KA2B
4518-547C11Polyester Film CapacitorMIC-ST3C563J
4518-530C12Polyester Film CapacitorUS16X154JAASA
100-0227C13Polyester Film CapacitorQYX1H474JTP
100-0095CON1Socket / ConnectorDPC25-2BP
4730-006CON2Socket / ConnectorDPC25-4BP
P10464U00PCB1Printed Circuit Board (PCB)P10464U00
P10346P00PCB2Printed Circuit Board (PCB)P10346P00
P10263Q00PCB3Printed Circuit Board (PCB)P10263Q00
P10327V00PCB4Printed Circuit Board (PCB)P10327V00
P10346T00PCB5Printed Circuit Board (PCB)P10346T00
P10327M00PCB6Printed Circuit Board (PCB)P10327M00
P10263X00PCB7Printed Circuit Board (PCB)P10263X00
P10293X00PCB8Printed Circuit Board (PCB)P10293X00
P10293R00PCB9Printed Circuit Board (PCB)P10293R00
P10293V00PCB10Printed Circuit Board (PCB)P10293V00
P10346R00PCB11Printed Circuit Board (PCB)P10346R00
P10263R00PCB12Printed Circuit Board (PCB)P10263R00
P10293T00PCB13Printed Circuit Board (PCB)P10293T00
4739-474Membrane Rubber PlugW-W02805
4735-038KnobK-100 22RSB
4735-039Knob CoverK-100 22CSBL
4739-475Rubber FootC-30-RK-3220
P10464W02Control Panel MembraneP10464W02
4739-476Socket CoverW-W02814
P5801G03HandleP5801G03
P10263G12BushingP10263G12
P10263J01Front PanelP10263J01
P10263J02Operation Panel CoverP10263J02
4734-013Welding Cable SocketDIXBE50/70
4734-016Power Cable PlugDIXSK50
4519-030Fan Bracket (with Dust Filter)109-1000F13
4519-031Replacement Dust Filter109-1000M13
4730-001PlugDPC25-2A
4730-005PlugDPC25-4A

*Note: Symbols marked with circled numbers or “—” in the table indicate external structural parts or accessories without an assigned symbol. Please purchase directly according to the Part No.

II. Genuine Parts Procurement & Technical Support

If you need to purchase the electronic components, control boards, or structural enclosure parts for the DA300P Welder mentioned above, please provide us with the equipment nameplate and corresponding Part No. We guarantee 100% genuine original parts and provide professional technical support.

Contact Us

*Please screenshot or copy the “Part No.” you need and send it to us via WhatsApp or Email. We will provide you with real-time quotes and inventory status as quickly as possible!

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