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Below is the detailed parts breakdown for the OTC Daihen CPDP500 welding machine. All components listed are genuine OTC Daihen spare parts, with symbols, model numbers, specifications, and quantities for easy identification and ordering.
| No. | Symbol | Part Name | Model / Part Number | Specification | Qty |
|---|---|---|---|---|---|
| 1 | T1 | Inverter transformer | P6906B00A | P6906B00A | 1 |
| 2 | T2 | Auxiliary transformer | 4810-229 | W-W02233A | 1 |
| 3 | T3 | Auxiliary transformer | 4810-230 | W-W02234A | 1 |
| 4 | L1 | DC reactor | C0122D00 | C0122D00 | 1 |
| 5 | L2 | Input reactor | P6841X00 | P6841X00 | 1 |
| 6 | LF | Filter | T0746B00 | T0746B00 | 1 |
| 7 | MS1,2 | AC contactor | 4340-127 | GSC1-3210D | 2 |
| 8 | — | Fan motor | 100-0077 | SF-200-20-4R | 1 |
| 9 | FM | Fan blade | W-W05049 | W-W05049 | 1 |
| 10 | — | Start capacitor | 300-0030 | CMPS45B205JW | 1 |
| 11 | CT1 | Converter | 4810-035 | W-W00216 | 1 |
| 12 | CT2 | Hall element | 4406-009 | HA400S3EH | 1 |
| 13 | PL1 | Neon lamp | 4600-342 | N46010A7KR-01 | 1 |
| 14 | PL2 | LED light | 4600-332 | DB-40-N-BR | 1 |
| 15 | PL3 | LED light | 4600-345 | DB-40-N-BY | 1 |
| 16 | F1,3 | Fuse | 4610-030 | QAS60-75 | 2 |
| 17 | F2 | Glass tube fuse | 4610-004 | 250V 10A | 1 |
| 18 | — | Fuse holder | 4610-128 | HF-008 | 1 |
| 19 | F4,5 | Fuse link | 300-0004 | RT28-32/4A | 2 |
| 20 | — | Fuse isolator | 300-0003 | RT28N-32X | 1 |
| 21 | F6 | Glass tube fuse | 4610-068 | 313 0.125A | 1 |
| 22 | SH | Shunt | 4403-132 | KY600A/60mV | 1 |
| 23 | A | Ammeter | 4403-054 | 209354HT/Z DC600A/60mV | 1 |
| 24 | V | Voltmeter | 4401-016 | 209354HT/Z DC75V | 1 |
| 25 | THP1,2 | Temperature control switch | 4614-051 | 67L090 | 2 |
| 26 | — | Three‑phase bridge diode | 100-0499 | DF100AA160 | 1 |
| 27 | DR2,3 | High‑speed diode | 4531-080 | RM300CA-9W | 2 |
| 28 | TR1,2 | IGBT module | 300-0078 | 2MBI200U4D-120 | 2 |
| 29 | SCR1 | SCR module | 4530-412 | SG25AA20 | 1 |
| 30 | R1~4 | Varistor | 100-1528 | TND14U-911KB0LLAA0 | 4 |
| 31 | R5 | Metal oxide film resistor | 4509-018 | RS2B510Q | 1 |
| 32 | R6,7 | Cement resistor | 4509-894 | 30SH9.1kQKA | 2 |
| 33 | R8 | Varistor | 100-1528 | TND14U-911KB0LLAA0 | 1 |
| 34 | R13~16 | Wire wound resistor | 4504-413 | NCRF22V5QJ | 4 |
| 35 | R17,18 | Cement resistor | 100-0601 | 30SHN3.3QKA | 2 |
| 36 | R19 | Cement resistor | 4509-805 | 40SH1QKA | 1 |
| 37 | R22~24 | Potentiometer | 4501-305 | RV24YN20SB5kQ | 3 |
| 38 | R25 | Wire wound resistor | 4504-333 | NCRF23V200QG | 1 |
| 39 | R26,27 | Cement resistor | 100-0601 | 30SHN3.3QKA | 2 |
| 40 | R28,29 | Cement resistor | 4509-824 | 40SH10QJA | 2 |
| 41 | R30 | Metal oxide film resistor | 4509-611 | RS1B3.3kQ | 1 |
| 42 | C1 | Film capacitor | 4518-482 | ECWH16473JV | 1 |
| 43 | C2,4 | Aluminum electrolytic capacitor | 4511-403 | FXA2G222IDSPH | 2 |
| 44 | C3 | Ceramic capacitor | 4517-401 | CS17-F2G103MYAS | 1 |
| 45 | C5~8 | Film capacitor | 4518-486 | ECWH16153JV | 4 |
| 46 | C9,10 | Film capacitor | 4518-482 | ECWH16473JV | 2 |
| 47 | C11~13 | Ceramic capacitor | 4517-415 | 0.0022µF 2kV | 3 |
| 48 | C14,15 | Film capacitor | 4518-482 | ECWH16473JV | 2 |
| 49 | C16 | Ceramic capacitor | 4517-415 | 2kV 0.0022µF | 1 |
| 50 | S3,4,6 | Switch | 100-1439 | KCD3B-12 (black) | 3 |
| 51 | S1,2 | Switch | 100-1440 | KCD3B-102 (black) | 2 |
| 52 | S5,8 | Transfer switch | 4252-015 | A7BS-206-1 | 2 |
| 53 | S7 | Switch | 4250-031 | JW-M21RKK | 1 |
| 54 | CON1 | Socket | 4730-622 | 25-7BK | 1 |
| 55 | CON2 | Socket | 4730-028 | DPC25-6BP | 1 |
| 56 | PS | Pressure switch | 4255-016 | W-W00032B | 1 |
| 57 | PCB1 | Printed circuit board | C0121P | C0121P00 | 1 |
| 58 | PCB2 | Printed circuit board | P6848Q | P6848Q00 | 1 |
| 59 | PCB3 | Printed circuit board | C0121S | C0121S00 | 1 |
| 60 | PCB4 | Printed circuit board | P6768T | P6768T00 | 1 |
| 61 | PCB5 | Printed circuit board | P6848Y | P6848Y00 | 1 |
| 62 | PCB6 | Printed circuit board | P10198Z | P10198Z00 | 1 |
| 63 | EPROM | EPROM | P6978V00 | P6978V00 | 1 |
| 64 | — | Input terminal block | K3904B00 | K3904B00 | 1 |
| 65 | — | Input terminal cover | K3904C00 | K3904C00 | 1 |
| 66 | — | Secondary terminal | K5505E00 | K5505E00 | 1 |
| 67 | R20,21 | Potentiometer | 4501-039 | RV24YN20SB5KQ | 2 |
| 68 | PB | Push button switch | 100-1449 | VAQ-4R | 1 |
| 69 | — | Metal plug | 4730-009 | DPC25-6A | 1 |
| 70 | — | Knob | 4735-007 | K-2195 (large) | 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