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This guide provides the detailed parts breakdown for the OTC Daihen CPVE250 inverter welding machine. The symbols correspond to those in the CPVE250 parts configuration diagram (refer to the previous article). All items listed are genuine OTC Daihen spare parts, with model numbers, specifications, and quantities for easy identification and ordering.
| No. | Symbol | Part Name | Model / Part Number | Specification | Qty |
|---|---|---|---|---|---|
| 1 | NF | Air switch | 100-2549 | DZ47-60 (400V/20A) | 1 |
| 2 | LF | Filter | P30179H01 | P30179H01 | 1 |
| 3 | PL1 | Indicator light | 4600-366 | N46010A7KW-01 | 1 |
| 4 | DR1 | Rectifier bridge | 100-1393 | MDS75-16 | 1 |
| 5 | DR2~3 | Fast diode module | 100-2547 | MMF200ZB040DK1 | 2 |
| 6 | TR1,2 | IGBT module | 100-1952 | MMG75SR120B | 2 |
| 7 | CT1 | Current transformer | 100-0851 | QW-W00050 | 1 |
| 8 | CT2 | Hall element | P30110L04 | P30110L04 | 1 |
| 9 | L1 | DC reactor | P30179C00 | P30179C00 | 1 |
| 10 | L2 | Filter coil | 4739-543 | E04RA310190100 | 1 |
| 11 | L3 | Filter coil | 4739-497 | E04RA400270150 | 1 |
| 12 | L4 | Filter coil | 4739-497 | E04RA400270150 | 1 |
| 13 | T1 | Inverter transformer | QW-W00157 | QW-W00157 | 1 |
| 14 | T2 | Control transformer | QW-W00123 | QW-W00123 | 1 |
| 15 | T3 | Control transformer | QW-W00128 | QW-W00128 | 1 |
| 16 | T4 | Control transformer | QW-W00158 | QW-W00158 | 1 |
| 17 | THP1 | Temperature control switch | 100-2550 | KSD301-PM6-90/3-NC (250#CQC) | 1 |
| 18 | FM | Fan | 100-2548 | 5E-220BW | 1 |
| 19 | — | Fan guard | 100-2551 | 33-0010-16-G | 1 |
| 20 | R1~4 | Varistor | 100-1528 | TND14V-911KB0LLAA0 | 4 |
| 21 | R5~8 | Carbon film resistor | 4508-309 | CFS1/4CT52A102J | 4 |
| 22 | R9,10 | Non‑inductive cement resistor | 100-0858 | RX27N-4V-20W 5.1RJ | 2 |
| 23 | R11 | Cement resistor | 100-0672 | RX27-4V-40W-1R-J | 1 |
| 24 | C1a,b | Film capacitor | 100-1953 | MFD-DA01 DC1200V-20µF | 2 |
| 25 | C3,4 | Film capacitor | 100-1396 | CBB81-2000V-223J | 2 |
| 26 | F1 | Fuse | 100-0936 | RFT-30 6X30 F8A 250V | 1 |
| 27 | SH | Shunt | 100-0938 | 60mV 400A | 1 |
| 28 | RY | Relay | 4341-206 | G6A-274P DC24V | 1 |
| 29 | TM1 | Input terminal | K3904B00 | K3904B00 | 1 |
| 30 | — | Input terminal protective cover | K3904C00 | K3904C00 | 1 |
| 31 | ECD501 | Encoder | 100-2518 | RE1201XE1-H01 | 1 |
| 32 | ECD502 | — | — | — | — |
| 33 | — | — | — | — | — |
| 34 | TM2 | Output terminal | 100-0868 | CX0060 | 1 |
| 35 | TM3 | Output terminal | 100-0867 | CX0058 | 1 |
| 36 | TM4 | Terminal block (12P) | 100-2057 | TB-1512 | 1 |
| 37 | CON1 | Socket | 4730-006 | DPC25-4BP | 1 |
| 38 | CON2 | Socket | 4730-010 | DPC25-6BP | 1 |
| 39 | CON3 | Socket | 100-0681 | RU-02 (B99) | 1 |
| 40 | PCB1 | Printed circuit board | P30110P | P30110P00 | 1 |
| 41 | PCB2 | Printed circuit board | P30110Q | P30110Q00 | 1 |
| 42 | PCB3 | Printed circuit board | P30066S | P30066S00 | 1 |
| 43 | PCB4 | Printed circuit board | P30179R | P30179R00 | 1 |
| 44 | PCB5 | Printed circuit board | P30110X | P30110X00 | 1 |
| 45 | ① | Rubber plug with membrane | W-W03637 | W-W03637 | 1 |
| 46 | ② | Rubber plug with membrane | 100-0945 | QW-W00016 | 1 |
| 47 | ③ | Adjustment knob | 100-2133 | KN-21-6Y (blue) | 1 |
| 48 | ④ | Operation panel film | P30179W02 | P30179W02 | 1 |
| 49 | ⑤ | Heat sink mounting bracket | P30179G04 | P30179G04 | 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