To help engineers and procurement professionals quickly locate genuine OTC Daihen welding machine and robot consumables and internal components, we have compiled a universal spare parts list covering models from 300-0069 to 4403-061 (This page contains a massive range of basic electronic components, IGBT modules, relays, contactors, switches, and sealing O-rings).
1. OTC Welder Spare Parts List Quick Search (300-0069 – 4403-061)
This list contains hundreds of original electronic control and structural spare parts. You can directly input the Part Number or Part Name (e.g., “IGBT Module”, “Contactor”, “Switch”) in the search box below, and the table will automatically filter the required parts for you:
| Part Number | Part Name | Remarks |
|---|---|---|
| 300-0069 | Spring Washer | |
| 300-0073 | AC Contactor | GSC1-(CJX4-d)-38 |
| 300-0075 | IGBT Module | |
| 300-0076 | Carbon Film Resistor | SPR3C 204J(200K) |
| 300-0078 | IGBT Module | 2MBI200U4D-120 |
| 300-0079 | IGBT Module | 2MBI200U4D-120-50 |
| 300-0085 | Thermal Switch | US-602SXTTAS 90℃ |
| 300-0087 | Aluminum Electrolytic Capacitor | MAL204281109E3 |
| 300-0088 | Film Capacitor | VW16X223K |
| 300-0102 | Hall Sensor | CS-40GEH |
| 300-0108 | Solenoid Gas Valve | DF2-B(DC 24V) |
| 300-0109 | Hall Sensor | |
| 300-0111 | Filter | |
| 300-0113 | Thermal Switch | KSD301-PH-75/3-NC(230#CQC) |
| 300-0114 | Fuse Holder | FC-04B27 |
| 300-0121 | Magnetic Contactor | |
| 300-0133 | Solenoid Valve | DF2-3-A (AC200V) |
| 300-0138 | Handle | |
| 300-0152 | Potentiometer | RV24YN-B502-20/3-1010 |
| 300-0155 | DC Ammeter | |
| 300-0196 | Center Adaptor Assembly | |
| 300-0250 | DC Voltmeter | TP-60KL DC100V |
| 300-0252 | Potentiometer | TC24B502-K |
| 300-0260 | DC Ammeter | TP-60KL DC750A/FS.DC1mA |
| 300-0294 | Motor (incl. Pinion) | |
| 300-0300 | Frame | |
| 300-0304 | Wire Feed Roll (0.8/1.2) | |
| 300-0382 | Socket | DPC25-6BP |
| 300-0388 | IGBT Module | SKM150GB12T4G |
| 300-0389 | Thermal Switch | KSD301-PM6-100/3-NC (#250) |
| 300-0394 | IGBT Module | GD150HFU120C2S |
| 300-0404 | IGBT Module | GD75HFU120CIS |
| 300-0412 | Glass Fuse | 5X20 F15A 250V |
| 300-0426 | IGBT Module | SKM200GB12T4 |
| 300-0525 | Square Socket | P28F-16B |
| 300-0559 | Socket | DPC25-2BP |
| 300-0579 | Indicator Light | ND16-22DS/4(380V)RED |
| 300-0582 | LED Indicator Light | DB-40F-BY |
| 300-0583 | LED Indicator Light | DB-40F-BG |
| 300-0615 | Fuse Holder | OP530 |
| 300-0662 | Cement Resistor | RX27-4V 40SH 150Ω |
| 300-0663 | Flow Switch | JS-GM1/2 |
| 300-0668 | Circuit Breaker | DZ47-60 D32 |
| 300-0669 | Bridge Rectifier | MDS401640R |
| 300-0670 | Shunt | 75mV 300A |
| 300-0671 | Fan | 17055HA3BL(FZY3-S) |
| 300-0672 | Output Terminal | EDZ50b (R) |
| 300-0673 | Output Terminal | EDZ50b (B) |
| 300-0676 | Cement Resistor | 20W 510Ω |
| 300-0924 | Motor | |
| 300-664 | Output Terminal | NX0060 |
| 300-665 | Output Terminal | NX0058 |
| 3311-001 | Bearing 26MM | 6000LL(LLU) |
| 3311-003 | Bearing 30MM | 6200LLU |
| 3311-004 | Bearing | |
| 3311-006 | Straightening Roll | |
| 3311-008 | Bearing 28MM | |
| 3311-014 | Bearing 26MM | |
| 3311-029 | Bearing 26MM | |
| 3311-108 | Bearing | |
| 3361-001 | Chain | |
| 3361-206 | Flat Key | |
| 3361-207 | Parallel Pin | |
| 3361-401 | CS-Type Retaining Ring | CSTW-10 |
| 3361-402 | Thrust Ring | STW-FT80X0.5 |
| 3361-403 | Retaining Ring | E-6 |
| 3361-404 | CS-Type Retaining Ring | |
| 3361-405 | E-Type Retaining Ring | CM-2312 |
| 3361-407 | Retaining Ring | |
| 3361-408 | CS-Type Retaining Ring | CSTW-6 |
| 3361-503 | Pan Head Screw | |
| 3361-505 | Wing Nut | |
| 3361-608 | Hexagon Socket Screw | M4X16-ZM3C |
| 3361-655 | Screw | N-3 M5L=10 (Black) |
| 3361-716 | Washer | BWW-625 |
| 3361-880 | Screw | M4X16-ZM3C ROHS |
| 3361-893 | Hexagon Screw | Changed to: 3361-884 |
| 3361-896 | Screw | |
| 34G10603 | Gas Hose (50M) | |
| 34G1Q002 | 50M Gas Hose 1/4 (Standard Type) | |
| 3570-006 | O-Ring | AN6227-6 NBR |
| 3570-007 | O-Ring | W1516-7 |
| 3570-105 | O-Ring | B2401 P5 |
| 3570-106 | O-Ring | B2401 P6(NBR) |
| 3570-108 | O-Ring | B2401-1A P8 NBR |
| 3570-124 | O-Ring | S-9 4C Silicone |
| 3570-125 | O-Ring | |
| 3570-240 | O-Ring | For WTCAW-5002 |
| 3570-301 | O-Ring | W1516-10-4D |
| 3570-302 | O-Ring | |
| 3570-303 | O-Ring | W1516-18-4D AS568-213 |
| 3574-001 | O-Ring | For WTC-3503 Torch Body |
| 3574-002 | O-Ring | |
| 3574-003 | O-Ring | S22.4(Viton) |
| 3574-004 | O-Ring | |
| 3574-005 | O-Ring | |
| 3574-006 | O-Ring | P16 Viton MTXCAW-5031 |
| 36G90368 | Certificate of Conformity | 36G90368 |
| 3900-002 | Arc Starting Wool | #0 450g |
| 39G90369 | Warranty Card | 39G90369 |
| 3B2000-80200 | Hexagon Bolt | |
| 4250-001 | Push Button Switch | |
| 4250-007 | Push Button Switch | Changed to: 4250-016 |
| 4250-016 | Push Button Switch | AH25-FG11 |
| 4250-018 | Push Button Switch | |
| 4250-031 | Push Button Switch | |
| 4250-077 | Push Button Switch | A2A-4R(RoHS) For Wire Feeder |
| 4250-123 | Transfer Switch | A3CA-5050-R |
| 4250-132 | Switch | |
| 4251-001 | Switch | WD1111F |
| 4251-002 | Switch | WD1311F |
| 4251-004 | Switch | |
| 4251-007 | Switch | WD1711F |
| 4251-010 | Switch | WD1511F or S-32 |
| 4251-011 | Switch | |
| 4251-014 | Toggle Switch | WD1011 |
| 4251-058 | Switch | AJ22411 Changed to: 100-2024 |
| 4251-059 | Switch | |
| 4251-070 | Switch | WD1611F |
| 4251-077 | Torch Cap | 47D31540 |
| 4251-081 | Switch | |
| 4251-093 | Switch | M2013SD8W01 |
| 4252-009 | Switch | MS14M1203 |
| 4252-013 | Rotary Switch | SRF-113-Z RoHS |
| 4252-015 | Rotary Switch | A7BS-206-1 42C30062 DT |
| 4252-024 | Rotary Switch | A7BS-254-1 DT |
| 4253-017 | Power Switch | NP4-30X/21 |
| 4253-024 | Thermal Switch | |
| 4254-004 | Microswitch | Z15GW2 |
| 4254-108 | Switch | SE-W202A-30BB |
| 4254-118 | Switch | DS-850K-F1-00(Black) |
| 4254-119 | Switch | DS-850C-F1-00(Black) |
| 4254-121 | Switch | HLS208K12-W |
| 4254-129 | Micro Limit Switch | |
| 4254-137 | Microswitch | W-W02670 NT Torch 42E00290 |
| 4254-140 | Switch | |
| 4254-141 | Switch | KCD3-102 |
| 4255-001 | Pressure Switch | W-30019 |
| 4255-012 | Pressure Switch | W-36255 |
| 4255-015 | Switch | |
| 4255-016 | Pressure Switch | W-W00032B 42E40322 |
| 4258-016 | Thermal Protector | |
| 4258-024 | Thermal Switch | |
| 4258-026 | Thermal Protector | |
| 4258-030 | Thermal Protector | |
| 4258-033 | Thermal Protector | 67L070 43C10304 |
| 4258-040 | Thermal Switch | 67L085 ROHS |
| 4258-041 | Thermal Switch | |
| 4258-051 | Thermal Switch | |
| 4259-004 | Foot Switch | |
| 4259-005 | Relay | W-34280B |
| 4259-006 | Relay | LA1DC12V |
| 4259-008 | Thermal Switch | TRS5-90BLR 43C20163 |
| 4340-011 | Contactor | SC-N2S/SP AC200V |
| 4340-078 | AC Magnetic Contactor | SC-N2 AC200V |
| 4340-080 | AC Magnetic Contactor | SC-N2S AC200V 2A2B |
| 4340-095 | AC Magnetic Contactor | SC-5-1 AC200V 1A1B UL |
| 4340-098 | Fan | |
| 4340-125 | AC Contactor | SC-5-1(1A1B,AC200V) CCC |
| 4340-126 | AC Contactor | GSC1-4011D (OTCM) |
| 4340-127 | AC Contactor | CJX4-3210D (OTCM) |
| 4340-305 | Relay | MK2P AC100V |
| 4340-501 | Relay | MY4 DC24 w/ Socket PY14 |
| 4340-502 | Relay | |
| 4340-512 | Relay | |
| 4340-515 | Relay Socket | |
| 4340-601 | Contactor | G4F-11123T DC24V Changed to: 100-1642 |
| 4340-609 | Relay | |
| 4341-101 | Relay | LY2-C DC24V |
| 4341-103 | Contactor | LY4 DC24V |
| 4341-108 | Relay | |
| 4341-109 | Relay | |
| 4341-110 | Relay | |
| 4341-114 | Contactor | LY2 AC200V |
| 4341-129 | Relay | G2R-1-T DC24V |
| 4341-139 | Relay | G2R-1-T DC24V |
| 4341-206 | Relay | G6A-274P DC24V |
| 4341-308 | Relay | G6B-1114P-FD-US DC24V |
| 4341-502 | Relay | |
| 4346-003 | Buzzer | EA-4202 |
| 4346-005 | Buzzer | EB1124 |
| 4400-001 | Voltmeter | |
| 4400-002 | Voltmeter | 209420Y-V00 |
| 4401-002 | Voltmeter | |
| 4401-008 | Voltmeter | DCF-6 DC75V |
| 4401-016 | Voltmeter | 209354-HT/Z |
| 4401-019 | Voltmeter | 209390-HT/Z DC100V |
| 4401-022 | Voltmeter | FS1MA 44A10316 |
| 4401-025 | Voltmeter | |
| 4401-026 | Voltmeter | |
| 4401-034 | Voltmeter | |
| 4402-004 | Ammeter | 209437Y-A42 1000/1500A |
| 4402-005 | Ammeter | |
| 4403-002 | DC Ammeter | W-31201 |
| 4403-033 | DC Ammeter | DCF-6 600A/1MA |
| 4403-046 | Ammeter (300A) | |
| 4403-049 | DC Ammeter | 209354HT/Z 600A/1MA |
| 4403-053 | DC Ammeter | |
| 4403-054 | Ammeter | |
| 4403-056 | Ammeter | FS1MA 44A30451 |
| 4403-057 | Ammeter | |
| 4403-058 | Ammeter | 209390-HT/Z300A/1MA |
| 4403-061 | Ammeter (300A) | Japan Stock Only |
2. Purchasing Original Parts & Technical Support
The items listed above are standard consumable parts for OTC equipment. If your required spare part is not included in the list, please provide us with the equipment nameplate or photos of the part. 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
- Global Sales & Tech Support: International Sales Team
- 24/7 Service Hotline (WhatsApp & WeChat Same No.): +86-180-9663-1656
- Official Email: ahojotc@gmail.com
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