To help engineers and procurement personnel quickly search and verify, we have thoroughly compiled all core part models, names, and specifications for the OTC Daihen VRTP400 TIG Welder [Model: VRTP400 III(S-3)]. This list has been professionally proofread to correct original manual unit errors, letter confusions (e.g., O and 0), and model typos, ensuring rigorous and accurate data.
I. VRTP400 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 |
|---|---|---|---|
| P30112B00 | T1 | Inverter Transformer | P30112B00 |
| QW-W00125 | T2 | Auxiliary Transformer | QW-W00125 |
| QW-W00078 | T3 | Auxiliary Transformer | QW-W00078 |
| P30112D00 | DCL | DC Reactor | P30112D00 |
| 100-1954 | LF1 | Filter Board | FS5681-33-99 (AP7681) |
| 100-1950 | L2〜L4 | Toroidal Core | TW70W (R402715) |
| 100-0848 | NF | Circuit Breaker | DZ47-60 D40 400V |
| 100-0933 | FM | Axial Cooling Fan | 200FZY3-S |
| 100-0850 | — | Fan Guard | QW-W00049 |
| 100-0928 | CT2 | Current Sensor | HAS 400-S/SP50 |
| 4600-366 | PL1 | Power Indicator Light | N46010A7KW |
| 4600-332 | PL2 | LED Light | DB-40-N-BR |
| 100-1955 | THP1 | Temperature Sensor | KSD301-PH-125/3-NC |
| 100-0895 | THP2 | Temperature Sensor | KSD870 250V-10A 85°C (TYPE A) |
| P30112C00 | C.C | Arc Ignition Coil | P30112C00 |
| 100-0872 | SOL | Solenoid Valve | ZCQ-20B-9 (DC 24V) |
| 100-0864 | CON1 | External Connector | P20J11A (7-pin) |
| 100-0095 | CON2 | External Connector | DPC25-2BP-Z (25-2BD) |
| 100-0852 | DM | Digital Panel Meter | XL5135V-3 (AC 9V) |
| 100-1393 | DR1 | 3-Phase Bridge Rectifier | MDS75-16 |
| 100-1951 | DR2〜3 | Fast Recovery Diode | MMF150S060DK2B |
| 100-1952 | TR1〜2 | IGBT Module | MMG75SR120B |
| 100-0853 | SW1 | Switch | KCD18-11 (ON-OFF) |
| 100-0854 | SW2〜4 | Switch | KCD18-13 (ON-OFF-ON) |
| 100-1029 | SW5 | Switch | KCD19-23 (ON-OFF-ON) |
| 4516-119 | R1〜4 | Varistor | TND14V-911KB0LLAA0 |
| 4508-015 | R5〜8 | Carbon Film Resistor | RD1/4W 1kΩJ |
| 100-1217 | R9〜10 | Cement Resistor | RX27N-4V 40W |
| 100-0859 | R11 | Cement Resistor | RX27-4V 20W |
| 100-1023 | R12 | Cement Resistor | RX27-4V 40W |
| 100-0860 | R13 | Cement Resistor | RX27-4V 40W |
| 100-0874 | — | Knob | K-2195 S |
| QW-W00082 | — | Knob | QW-W00082 |
| 4509-128 | R24〜26 | Metal Oxide Film Resistor | RS2B 200kΩ |
| 100-1953 | C1〜2 | Film Capacitor | MFD-DA01 DC1200V-20μF |
| 4518-533 | C4〜5 | Film Capacitor | CBB80-2000V-473J |
| 4517-455 | C7 | Ceramic Capacitor | 0.01μF 2kV |
| 4255-016 | PS | Pressure Switch | W-W00032 |
| 100-0862 | F1 | Fuse | ZH217 (500V/5A) |
| 100-0863 | — | Fuse Holder | QW-W00055(150) |
| P30247P | PCB1 | Printed Circuit Board (PCB) | P30247P00 |
| P30067S | PCB2 | Printed Circuit Board (PCB) | P30067S00 |
| P30067T | PCB3 | Printed Circuit Board (PCB) | P30067T00 |
| P30067Y | PCB4 | Printed Circuit Board (PCB) | P30067Y00 |
| P30067V | PCB5 | Printed Circuit Board (PCB) | P30067V00 |
| P30112U | PCB8 | Printed Circuit Board (PCB) | P30112U00 |
| K3904B00 | ① | Input Terminal Block | K3904B00 |
| K3904C00 | ② | Input Terminal Cover | K3904C00 |
| 100-0866 | ③ | Cable Clamp | W-W00010 |
| K3927B00 | ④ | Base Metal (+) Terminal | K3927B00 |
| QW-W00090 | ⑤ | Water-Cooled Output Terminal | QW-W00090 |
*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 VRTP400 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!


