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 M350L 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 direct translation errors, consolidating identical parts for clear display.
I. M350L 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 |
|---|---|---|---|
| 100-1568 | NF | Circuit Breaker | CA3-X0-19-177-41D-C |
| 100-0171 | PL1 | Indicator Light | N46010A7KW-01 |
| 4531-716 | DR1 | Bridge Rectifier | DFA100BA160 |
| 4531-119 | DR2-6 | Rectifier Module | DSEI2X101-06A |
| 4531-505 | DR7 | Diode | S2L60 |
| 4534-416 | TR1-4 | IGBT Module | CM100DUS-12F |
| 4530-412 | SCR1 | Thyristor (SCR) | SG25M20 |
| 4810-030 | CT1 | Current Transformer (CT) | W-W03029 |
| 100-0956 | CT2 | Hall Effect Sensor | CS-40GEH |
| P30086B00 | T1 | Inverter Transformer | P30086B00 |
| W-W03674 | T2 | Auxiliary Transformer | W-W03674 |
| P30086L00 | L1 | Input Reactor | P30086L00 |
| P30087C00 | L2 | DC Reactor | P30087C00 |
| 4739-497 | L3 | Ferrite Core | E04RA400270150 |
| 4739-543 | L4〜5 | Ferrite Core | E04RA310190100 |
| 100-0123 | THP2 | Thermostat Switch | US-602SXTTAS 130°C |
| 100-1429 | FM1, 2 | Cooling Fan | 9WV1224P1H003 |
| 100-1825 | FM4 | Cooling Fan | 9G1224E1D07 |
| 4403-116 | SH | Shunt | KY400A 400A/60mV |
| 100-1528 | R1~4 | Varistor | TND14V-911KB0LLAA0 |
| 100-0234 | R5~10, R17, R20, 21, R24 | Carbon Film Resistor | RD20S 1kΩJ |
| 100-1430 | R11, 12 | Metal Film Resistor | RPM200Z 5Ω |
| 4509-916 | R16 | Cement Resistor | T20SH 2.2ΩJ |
| 100-0662 | R18 | Thermistor | EC2F103A2-40113 |
| 100-1432 | R19a, b | Metal-Clad Wirewound Resistor | FHN50 471J/R0 |
| 100-1571 | R22 | Wirewound Resistor | CS1P 100ΩJ |
| 4509-918 | R23 | Cement Resistor | 40SH 200ΩJ |
| 100-1433 | C1-4 | Ceramic Capacitor | DE0805E222Z2K |
| 100-1434 | C5, 6 | Film Capacitor | FHC(180)2000V682J |
| 100-0227 | C7, C10 | Film Capacitor | 0.47μF 50V |
| 4511-512 | C8 | Aluminum Electrolytic Capacitor | LQA2C222MSMEZ0 |
| 100-1572 | C9 | Film Capacitor | FHC(180)2000V103J |
| 100-1435 | CON1 | Socket / Connector | DPC25-10BP |
| 4730-010 | CON2 | Socket / Connector | DPC25-6BP |
| 4739-141 | TM5 | Terminal Block | T-3 Black |
| K5791B00 | DCV1 | Constant Voltage Power Supply | K5791B00 |
| K5791C00 | DCV2 | Constant Voltage Power Supply | K5791C00 |
| P30099P00 | PCB1 | Printed Circuit Board (PCB) | P30099P00 |
| 4341-206 | — | Relay | G6A-274P DC24V |
| P30086R | PCB2 | Printed Circuit Board (PCB) | P30086R00 |
| P30086Q | PCB3 | Printed Circuit Board (PCB) | P30086Q00 |
| P30087Q | PCB4 | Printed Circuit Board (PCB) | P30087Q00 |
| P30086V | PCB5, PCB6 | Printed Circuit Board (PCB) | P30086V00 |
| P30099M | PCB7 | Printed Circuit Board (PCB) | P30099M00 |
| P30086T | PCB8 | Printed Circuit Board (PCB) | P30086T00 |
| P30087T | PCB9 | Printed Circuit Board (PCB) | P30087T00 |
| P30086S | PCB10 | Printed Circuit Board (PCB) | P30086S00 |
| P30088V | PCB11 | Printed Circuit Board (PCB) | P30088V00 |
| P30086G01 | ① | Cover Plate | P30086G01 |
| P30086G02 | ② | Cover Plate | P30086G02 |
| P30099W02 | ③ | Operation Panel | P30099W02 |
| W-W03636 | ④ | Cover | W-W03636 |
| 100-1573 | ⑤ | Panel Plug | CX0058 |
| 100-1436 | ⑥ | Handle Cover | DCP73BH 3-Pole H Handle Cover |
| 4739-476 | ⑦ | Cover | W-W02814 |
| 4735-038 | ⑧ | Knob | K-100 22RSB |
| 4735-039 | ⑨ | Knob Cover | K-100 22CSBL |
| K5710C00 | ⑩ | Input Terminal Block | K5710C00 |
| K5710D01 | ⑪ | Input Terminal Block Cover | K5710D01 |
| W-W03591 | ⑫ | Input Cable Clamp | W-W03591 |
| P10565R02 | ⑬ | Cable Clamp | P10565R02 |
| 4739-474 | ⑭ | Membrane Rubber Plug | W-W02805 |
| P30086D09 | ⑮ | Dust Cover | P30086D09 |
| 100-0201 | ⑯ | Fixed Caster | 420SR-RD50 |
*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 parts for the M350L 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
- Global Sales & Tech Support: +86-180-9663-1656 (WhatsApp & WeChat Same No.)
- Official Email: ahojotc@gmail.com
*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!


