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EP400 Welder Parts List | PCBs & IGBTs

To help engineers and procurement professionals quickly locate and accurately purchase items, we have compiled a detailed list of all core components, part numbers, and specifications for the OTC Daihen EP400 Welding Machine. This list contains 63 spare parts data entries, and we have professionally corrected any unit code garbles or naming typos from the original factory materials.

1. Real-Time Quick Search Table for EP400 Parts

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

Part No. (OTC Order No.) Symbol Part Name Specification
4614-0848NFCircuit BreakerDZ47-60D40A
4600-366PL1Indicator LightN46010A7KW-01ROHS
100-1393DR1Bridge RectifierMDS75-16
100-2056DR2-3Fast Recovery Diode ModuleMMF300Y060DK1
4531-505DR5DiodeS2L60
100-2043DR6Fast Recovery Diode ModuleMMF2X100J060D
100-0667TR1-2IGBT ModuleMMG75SR120B
100-0851CT1Current TransformerQW-W00050
100-0956CT2Hall SensorCS-40GEH
P30191B00T1Inverter TransformerP30191B00
4810-916T2Auxiliary TransformerW-W02936
P30191D00L1Output ReactorP30191D00
P30191C00L2Output ReactorP30191C00
P30191U00L3Input ReactorP30191U00
QW-W00155L4Ferrite CoreQW-W00155
4739-543L5Ferrite CoreE04RA310190100
100-0618L6Ferrite CoreHM2AT4815
100-0931THP1Thermal SwitchKSD301-PM6-80/3-NC(#250)
100-0931THP2Thermal SwitchKSD301-PM6-80/3-NC(#250)
100-0933FM1Fan / Blower200FZY3-S
100-0938SHShunt60mV400A
6100-052R1〜4VaristorTND14V-911KB0LLAA0
100-0935R5〜8Carbon Film ResistorCFS1/4CT52A102J
100-1403R9,10Non-Inductive Cement ResistorRX27N4V-30W-5R1J
4509-905R11Cement ResistorMHR20A513J1
4509-916R12Cement ResistorT20SH 2.2ΩJ
100-0935R13Carbon Film ResistorCFS1/4CT52A102J
4501-039R15,16PotentiometerRV24YN20SB 5kΩ
100-1432R17Aluminum Housed ResistorRE50W-470R-5%
100-1953C1a,bFilm CapacitorMFD-DA01DC1200V-20
100-1290C2Film CapacitorCBB80-2000V-473J
100-1396C3,4Film CapacitorCBB81-2000V-223J
100-1397C5Film CapacitorMLC-LL500MF800VDC50A
100-0227C6Film Capacitor0.47μF 50V
4511-512C7Electrolytic CapacitorLQA2C222MSEEZ0
100-1435CON1SocketDPC25-10BP
4730-010CON2SocketDPC25-6BP
K5791B00DCV1Switching Power SupplyK5791B00
K5791C00DCV2Switching Power SupplyK5791C00
K3904B00TM1Input Terminal BlockK3904B00
K3904C00Input Terminal Block CoverK3904C00
100-1292TM2Output Terminal (+)EDZ95b(R)
100-1292TM3Output Terminal (+)EDZ95b(R)
100-1091TM4Output Terminal (-)EDZ95b(B)
100-2057TM512P Terminal BlockTB-1512
4739-33TM6Binding PostT-375 12mm(BLACK)
P30099P00PCB1Printed Circuit Board (PCB)P30099P00
P30191S00PCB2Printed Circuit Board (PCB)P30191S00
P30086Q00PCB3Printed Circuit Board (PCB)P30086Q00
P30087Q00PCB4Printed Circuit Board (PCB)P30087Q00
P30087T00PCB5Printed Circuit Board (PCB)P30087T00
P30086T00PCB6Printed Circuit Board (PCB)P30086T00
P30086R00PCB7Printed Circuit Board (PCB)P30086R00
P30110X00PCB8Printed Circuit Board (PCB)P30110X00
P30191G05Top PanelP30191G05
P30191G03, G04Side PanelP30191G03, G04
P30191W02Operation PanelP30191W02
W-W02814Rubber Cap4739-476
K-10022RSBKnob4735-038
K-10022CSBLKnob Cap4735-039
K3904B00Input Terminal BlockK3904B00
K3904C00Input Terminal Block CoverK3904C00
100-0945Rubber Plug with FilmQW-W00016

Note: Items marked with “—” or circled numbers in the “Symbol” column indicate housing structural parts or accessories with no specifically designated independent symbols. Please purchase directly based on the Part No. (OTC Order No.).

2. Purchasing Original Parts & Technical Support

If you need to purchase electronic components, control boards, or housing structure parts inside the EP400 welding machine, please directly provide us with the equipment nameplate and the corresponding Part No. (Order No.). As an authorized distributor, we promise to provide 100% genuine original parts with professional technical guidance from our maintenance engineers to ensure perfect compatibility.

Contact Us for Inquiries & Support

Please take a screenshot or copy the "Part No. (Order No.)" you need and send it to us via WhatsApp or Email. We will provide you with real-time pricing and inventory status as quickly as possible!

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