Welcome To Authorized Distributor of OTC Daihen Official Website!
Language：
∷
∷
∷
Following the popular CPVE400 guide, today we are sharing the detailed parts breakdown for the OTC Daihen DM350 welding machine. Many technicians have requested a similar reference for this model. Below you'll find annotated photos and a complete table listing every component with its symbol, part name, model number, specification, and quantity. All parts are genuine OTC Daihen items. The DM500 guide will follow soon.
| Symbol | Part Name | Model / Part Number | Specification | Qty |
|---|---|---|---|---|
| NF | Air switch | 4614-109 | IELK111-34459-1V | 1 |
| LF | Filter | 4519-036 | FS5681-33-99 | 1 |
| PL1 | Indicator light | 4600-366 | N46010A7KW-01 | 1 |
| DR1 | SCR integrated module | 4531-204 | DFA75BA160 | 1 |
| DR2~5 | High-speed diode module | 4531-308 | DBA200UA60 | 4 |
| TR1~4 | IGBT module | 4534-407 | 2MBI150TA-060 | 4 |
| CT1 | Current transformer (CT) | 4810-030 | W-W03029 | 1 |
| CT2 | Hall element | 4406-009 | HA400S3EH | 1 |
| T1 | Inverter transformer | P10260B00 | P10260B00 | 1 |
| T2 | Control transformer | 4810-916 | W-W02936 | 1 |
| L1 | DC reactor | P10260C00 | P10260C00 | 1 |
| L2,3,7 | Ferrite core | 4739-497 | E04RA400270150 | 3 |
| L4 | Ferrite core | 4739-497 | E04RA400270150 | 2 |
| L10 | Ferrite core | 4739-358 | R1-17.5-28.5-10.7 | 1 |
| L5,6,8,9 | Ferrite core | 4739-543 | E04RA310190100 | 4 |
| THP1 | Temperature control switch | 100-0123 | US-602SXTTAS 130°C | 1 |
| THP2 | Temperature control switch | 4614-057 | 67L080 | 1 |
| FM1 | Fan | 4805-074 | 4715SL-05W-B60-D00 | 1 |
| R1~4 | Varistor | 4516-119 | ENE911D-14A | 4 |
| R5 | Metal oxide film resistor | 4509-018 | RS2W 510QJ | 1 |
| R6 | Cement resistor | 4509-819 | 40SH 200QJ | 1 |
| R7 | Cement resistor | 4509-825 | 20SH 15QJ | 1 |
| R8~13, R17,25,26 | Carbon film resistor | 4509-704 | RD1/4W 1kQJ | 9 |
| R14,15 | Metal film resistor | 4509-138 | RNP-50SA 5QJ | 2 |
| R19~21 | Metal oxide film resistor | 4509-128 | RS2W 200kQJ | 3 |
| C1 | Ceramic capacitor | 4517-452 | 2KV 0.0022uF | 1 |
| C2a,b | Polyester film capacitor | 4518-515 | DKR1600VDC683JSL | 2 |
| C4,5 | Polyester film capacitor | 4514-206 | US20X472JAASA | 2 |
| C7 | Polyester film capacitor | 4518-402 | 0.47uF 50V | 1 |
| CON1 | Socket | 4730-421 | HS25R-10 | 1 |
| CON2 | Socket | 4730-426 | 25-6BK | 1 |
| TM1 | Terminal block | 4739-505 | TB-10-01 12P | 1 |
| SH | Shunt for ammeter | 4403-116 | KY400A 400A/60mV | 1 |
| PCB1 | Printed circuit board | P10327U00 | P10327U00 | 1 |
| PCB2 ※Note | Printed circuit board | P10492P | P10492P00 | 1 |
| PCB3 | Printed circuit board | P10263Q | P10263Q00 | 1 |
| PCB4 | Printed circuit board | P10327V | P10327V00 | 1 |
| PCB5 | Printed circuit board | P10264T | P10264T00 | 1 |
| PCB6 | Printed circuit board | P10327M | P10327M00 | 1 |
| PCB7 | Printed circuit board | P10261Q | P10261Q00 | 1 |
| PCB8 | Printed circuit board | P10263R | P10263R00 | 1 |
| ① | Rubber plug with membrane | 4739-474 | W-W02805 | 3 |
| ② | Knob | 4735-038 | K-100 22RSB | 1 |
| ③ | Cover | 4735-039 | K-100 22CSBL | 1 |
| ④ | Rubber feet | 4739-475 | C-30-RK-3220 | 4 |
| ⑤ | Control panel interface (film) | P10328W02 | P10328W02 | 1 |
| ⑥ | Cover | 4739-476 | W-W02814 | 2 |
| ⑦ | Handle | P5801G03 | P5801G03 | 2 |
| ⑧ | Bushing | P10263G12 | P10263G12 | 4 |
| ⑨ | Panel cover | P10260J01 | P10260J01 | 1 |
| ⑩ | Control panel cover | P10263J02 | P10263J02 | 1 |
| — | Socket | 100-1573 | CX0058 | 2 |
| ⑪ | Welding cable connection plug | 100-1868 | CX0522A | 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