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Below is the detailed parts breakdown for the OTC Daihen DP400 welding machine. The annotated image shows the location of each component. All items listed are genuine OTC Daihen spare parts, with symbols, model numbers, specifications, and quantities for easy identification and ordering.
| Symbol | Part Name | Model / Part Number | Specification | Qty |
|---|---|---|---|---|
| NF | Air switch | 4614-109 | IELK111-34459-1-V or IELK111-1-63-50.0-AEK-01-V | 1 |
| LF1 | Filter | 4519-037 | FS5681-50-99 | 1 |
| PL1 | Indicator light | 4600-366 | N46010A7KW-01 | 1 |
| DR1 | SCR integrated module | 4531-717 | DFA150AA160 | 1 |
| DR2a~e | High-speed diode module | 4531-308 | DBA200UA60 | 5 |
| DR3 | Diode | 4531-505 | S2L60 | 1 |
| DR4 | High-speed diode module | 4531-308 | DBA200UA60 | 1 |
| SCR1 | Thyristor module | 4530-412 | SG25AA20 | 1 |
| TR1~4 | IGBT module | 4534-528 | CM200DY-12NF | 4 |
| CT1 | Current transformer | 4810-030 | W-W03029A | 1 |
| CT2 | Hall element | 4406-009 | HA400S3EH | 1 |
| T1 | Inverter transformer | P10264B00 | W-W03361 | 1 |
| T2 | Auxiliary shifter | 4810-916 | W-W02936B | 1 |
| L1 | DC reactor | P30037L00 | P30037L00 | 1 |
| L2 | Input reactor | P10322L00 | P10322L00 | 1 |
| L3a,b | Ferrite core | 4739-497 | I-04RA400270150 | 2 |
| L4,5 | Ferrite core | 4739-497 | E04RA400270150 | 2 |
| L6 | Ferrite core | 4739-358 | RI-17.5-28.5-10.7 | 1 |
| L7 | Ferrite core | 4739-497 | R04RA400270150 | 1 |
| THF1 | Temperature control switch | 4614-057 | 67L080 | 1 |
| THP2 | Temperature control switch | 4258-024 | US-602SXTTAS130*C | 1 |
| THF3 | Temperature control switch | 4614-051 | 67L090 | 1 |
| FM1,2 | Fan | 4805-074 | 4715SL-05W-B60-D00 | 2 |
| SH | Shunt | 4403-116 | KY400A400A/60MV | 1 |
| PS1 | Pressure switch | 4255-016 | W-W00032B | 1 |
| TM1 | Terminal block | 4739-505 | TB10-0112P | 1 |
| TM2 | Terminal block | 4739-504 | TB10-016P | 1 |
| R1a~c | Metal oxide film resistor | 4509-128 | RS2B200kQJ | 3 |
| R2 | Carbon film resistor | 4509-704 | RD20SlkQJ | 1 |
| R3 | Cement resistor | 4509-819 | 40SH200QJ | 1 |
| R4a~h | Carbon film resistor | 4509-704 | RD20SlkQJ | 8 |
| R5a,b | Cement resistor | 4509-881 | 40SHN5.1QJA | 2 |
| R6 | Cement resistor | 4509-916 | T20SH2.2QJA | 1 |
| R7 | Carbon film resistor | 4509-704 | RD20SlkQJ | 1 |
| R8 | Cement resistor | 4509-825 | 20SH15kQJ | 1 |
| R9a,b | Cement resistor | 4509-922 | 20SH10QJ | 2 |
| R10a~c | Varistor | 4516-119 | TND14V-911KB0LLAA0 | 3 |
| R11 | Varistor | 4516-119 | TND14V-911KB0LLAA0 | 1 |
| C1 | Polyester film capacitor | 4518-402 | 0.47nF50V | 1 |
| C2 | Polyester film capacitor | 4518-530 | US16X154JAASA | 1 |
| C3a,b | Polyester film capacitor | 4518-542 | US20X472JAASA | 2 |
| C4 | Polyester film capacitor | 4518-402 | 0.47uF50V | 1 |
| C5 | Aluminum electrolytic capacitor | 4511-510 | LWA2N601MSEAZ0 | 1 |
| CON1 | Socket | 4730-421 | HS25R-10(71) | 1 |
| CON2 | Socket | 4730-426 | 25-6BK-Z | 1 |
| PCB1 | Printed circuit board | P10532U00 | P10532U00 | 1 |
| PCB2 | Printed circuit board | P10265P00 | P10265P00 | 1 |
| PCB3 | Printed circuit board | P10532Q | P10532Q00 | 1 |
| PCB4 | Printed circuit board | P10533V | P10533V00 | 1 |
| PCB5 | Printed circuit board | P30037Z | P30037Z00 | 1 |
| PCB6 | Printed circuit board | P30037Y | P30037Y00 | 1 |
| PCB7 | Printed circuit board | P10261Q | P10261Q00 | 1 |
| PCB8 | Printed circuit board | P10533R | P10533R00 | 1 |
| PCB9 | Printed circuit board | P10346R | P10346R00 | 1 |
| PCB10 | Printed circuit board | P10533X | P10533X00 | 1 |
| PCB11 | Printed circuit board | P10532S | P10532S00 | 1 |
| ① | Rubber plug with membrane | 4739-474 | W-W02805 | 1 |
| ② | Rubber foot | 4739-475 | C-30-RK-3220 | 1 |
| ③ | Front panel | P10264J01 | P10264J01 | 1 |
| ④ | Operation panel cover | P10263J02 | P10263J02 | 1 |
| ⑤ | Quick connector socket | 100-1573 | CX0058 | 1 |
| — | Quick connector | 4734-025 | DIXSK70 | 1 |
| — | Quick connector | 4734-026 | DIXSK95 | 1 |
| ⑥ | Dust filter | P30037J04 | P30037J04 | 1 |
| ⑦ | Input terminal M | K3904B00 | K3904B00 | 1 |
| ⑧ | Input terminal cover | K3904C00 | K3904C00 | 1 |
| ⑨ | Cable clamp | 100-0866 | W-WQ0010 | 1 |
| ⑩ | Glass tube fuse | — | 0.5A250V | 1 |
| — | Glass tube fuse | 100-0479 | 0235003P | 1 |
| — | Fuse holder | 100-0480 | F-400-01A2 | 1 |
All parts listed above are 100% original OTC Daihen spare parts. Our company is an OTC-designated agent, ensuring you receive authentic components for your welding machine. Whether you need a single replacement or bulk orders, we are here to help.
📞 Contact Us for Orders / Inquiries
📱 Phone / WeChat / WhatsApp:
+86-180-9663-1656
📧 Email:
ahojotc@gmail.com
* For fastest response, please contact via phone or WhatsApp. You're also welcome to connect on WeChat to exchange knowledge and information about OTC welding machines.
Company: COMPANY：Authorized Distributor of OTC Daihen
Contact person: Contact：Mr.Fang
Mobile phone: Phone：+86-18096631656
Email address: Email：15305667776@163.com
Address: Add：Room 11-704, K Xijia, No. 502, Wangjiang West Road, Hefei, Anhui, China