To help engineers and procurement personnel quickly search and verify, we have meticulously compiled all core part models, names, and specifications for the OTC Daihen P400 Welding Machine. This list has been professionally proofread to correct original manual scan errors (such as confusing O with 0, or garbled symbols) and direct translation errors, consolidating identical parts for clear display.
I. P400 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 ROHS |
| 4531-716 | DR1 | Bridge Rectifier | DFA100BA160 |
| 4531-119 | DR2-6, 8 | Rectifier Module | DSEI2X101-06A |
| 4531-505 | DR7 | Diode | S2L60 |
| 100-2215 | TR1~4 | IGBT Module | CM200DUS-12NFH |
| 4530-412 | SCR1 | Thyristor (SCR) | SG25AA20 |
| 4810-030 | CT1 | Current Transformer (CT) | W-W03029 |
| 100-0956 | CT2 | Hall Effect Sensor | CS-40GEH |
| P30124B00 | T1 | Inverter Transformer | P30124B00 |
| W-W03674 | T2 | Auxiliary Transformer | W-W03674 |
| P30086L00 | L1 | Input Reactor | P30086L00 |
| P30146C00 | L2 | DC Reactor | P30146C00 |
| 4739-497 | L3 | Ferrite Core | E04RA400270150 |
| 4739-543 | L4~5 | Ferrite Core | E04RA310190100 |
| 100-0620 | L6 | Ferrite Core | SN-20 0R 23.5X9.5X12.6 |
| 100-1824 | THP2 | Thermostat Switch | US-602SXTTAS 140°C |
| 100-1492 | FM1, 2 | Cooling Fan | 9WV1224P1H003 |
| 100-1825 | FM4 | Cooling Fan | 9G1224E1D07 |
| 4403-132 | SH | Shunt | SH 600A/60mV |
| 6100-052 | R1〜4 | Varistor | TND14V-911KB0LLAA0 |
| 100-0234 | R5—10, R20, 21 | Carbon Film Resistor | RD20S 1kΩJ |
| 100-1430 | R11, 12 | Metal Film Resistor | RPM200Z 5Ω |
| 4509-916 | R16 | Cement Resistor | T20SH 2.2ΩJ |
| 4509-704 | R17, R24 | Carbon Film Resistor | RD1/4W 1kΩJ |
| 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 | Ceramic Capacitor | DE0805E222Z2K |
| 100-1434 | C5, C6 | Film Capacitor | FHC(180)2000V682J |
| 100-0227 | C7, C10 | Film Capacitor | 0.47μF 50V |
| 100-0177 | C8 | Aluminum Electrolytic Capacitor | LWA2N601MSEAZ0 |
| 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 |
| 4255-016 | PS1 | Water Pressure Switch | W-W00032 |
| P30099P | PCB1 | Printed Circuit Board (PCB) | P30099P00 |
| 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 |
| P30133M | PCB7 | Printed Circuit Board (PCB) | P30133M00 |
| P30086T | PCB8 | Printed Circuit Board (PCB) | P30086T00 |
| P30087T | PCB9 | Printed Circuit Board (PCB) | P30087T00 |
| P30086S | PCB10 | Printed Circuit Board (PCB) | P30086S00 |
| P30086G01 | (1) | Cover Plate | P30086G01 |
| P30086G02 | (2) | Cover Plate | P30086G02 |
| P30146W02 | (3) | Operation Panel | P30146W02 |
| W-W03636 | (4) | Cover | W-W03636 |
| 4734-007 | (5) | Socket | DIXBE50-70 |
| 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 |
| 100-0393 | (14) | Membrane Rubber Plug | BB-1187B |
| 100-0201 | (15) | Fixed Caster | 420SR-RD50 |
*Note: Symbols marked with bracketed numbers in the table indicate external structural parts or accessories. 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 P400 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!


