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This guide provides the detailed parts breakdown for the OTC Daihen T500P welding machine. 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 | 100-1568 | CA3-B0-24-640-41D-C | 1 |
| 2 | PL1 | Power indicator light | 100-0171 | N46010A7KW-01R0HS | 1 |
| 3 | DR1 | Rectifier module | 100-1938 | PGH150N16 | 1 |
| 4 | DR2~9 | Rectifier module | 4531-119 | DSEI2X101-06A | 8 |
| 5 | TR1~4 | IGBT module | 100-1750 | CM300DU-12NFH | 4 |
| 6 | CT1 | Current transformer | 4810-030 | W-W03029 | 1 |
| 7 | CT2 | Hall element | 100-0956 | CS-40GEH | 1 |
| 8 | T1 | Inverter transformer | P30086B00 | P30086B00 | 1 |
| 9 | T2 | Auxiliary transformer | W-W03674 | W-W03674 | 1 |
| 10 | CC | Coupling coil | P30174C00 | P30174C00 | 1 |
| 11 | L1 | Input reactor | P30125L00 | P30125L00 | 1 |
| 12 | L3 | Ferrite core | 4739-497 | E04RA400270150 | 1 |
| 13 | L4,5 | Ferrite core | 4739-543 | E04RA310190100 | 2 |
| 14 | L6 | Ferrite core | 100-0620 | SN-20OR 23.5×9.5×12.6 | 1 |
| 15 | L7,8 | Ferrite core | 4739-543 | E04RA310190100 | 2 |
| 16 | L9 | Ferrite core | 4739-543 | E04RA310190100 | 1 |
| 17 | THP1 | Temperature control switch | 100-1071 | US-602SXTTAS 120°C | 1 |
| 18 | THP2 | Temperature control switch | 100-1071 | US-602SXTTAS 120°C | 1 |
| 19 | FM1,2 | Fan | 100-1429 | 9WV1224P1H003 | 2 |
| 20 | FM4 | Fan | 100-1825 | 9G1224E1D07 | 1 |
| 21 | SC1~4 | Surge clamp circuit | 100-2539 | 1.5KE300CA-E3/1 | 4 |
| 22 | R1~4 | Varistor | 6100-052 | TND14V-911KB0LLA0 | 4 |
| 23 | R5~10 | Carbon film resistor | 100-0234 | RD20S 1kΩ | 6 |
| 24 | R11,R12 | Metal film resistor | 100-1430 | RPM200Z 5Ω | 2 |
| 25 | R18 | Thermistor | 100-0662 | EC2F103A2-40113 | 1 |
| 26 | R20 | Wire wound resistor | 4504-503 | GG80W 200ΩJ | 1 |
| 27 | R22 | Wire wound resistor | 100-1571 | CS1P 100ΩJ | 1 |
| 28 | R23 | Cement resistor | 4509-918 | 40SH 200ΩJ | 1 |
| 29 | R24 | Carbon film resistor | 4509-704 | RD1/4W 1kΩJ | 1 |
| 30 | R27,28 | Carbon film resistor | 100-0234 | RD20S 1kΩ | 2 |
| 31 | R29,30 | Metal oxide film resistor | 100-1949 | MOS1CT52A104J | 2 |
| 32 | C1~4 | Ceramic capacitor | 100-1433 | DE0805E222Z2K | 4 |
| 33 | C5,6 | Film capacitor | 100-1434 | FHC(180)2000V682J | 2 |
| 34 | C7 | Ceramic capacitor | 100-1072 | CS17-F2GA103MYGS | 1 |
| 35 | C9 | Film capacitor | 100-1572 | FHC(180)2000V103J | 1 |
| 36 | C10 | Film capacitor | 100-0227 | 0.47µF 50V | 1 |
| 37 | SOL | Solenoid valve | 4813-046 | TYPE5511 DC24V | 1 |
| 38 | PS | Pressure switch | 4255-016 | W-W00032B | 1 |
| 39 | CON1 | Socket | 100-0095 | DPC25-2BP | 1 |
| 40 | CON2 | Socket | 4730-006 | DPC25-4BP | 1 |
| 41 | DCV1 | Constant voltage power supply | K5791B00 | K5791B00 | 1 |
| 42 | PCB1 | Circuit board | P30099P00 | P30099P00 | 1 |
| 43 | — | Relay | 4341-206 | G6A-274P DC24V | 1 |
| 44 | PCB2 | Circuit board | P30086R | P30086R00 | 1 |
| 45 | — | Encoder | 100-1421 | EVEGA1F2524B | 1 |
| 46 | PCB3 | Circuit board | P30086Q | P30086Q00 | 1 |
| 47 | PCB5 | Circuit board | P30086V | P30086V00 | 1 |
| 48 | PCB6 | Circuit board | P30086V | P30086V00 | 1 |
| 49 | PCB7 | Circuit board | P30115M | P30115M00 | 1 |
| 50 | PCB8 | Circuit board | P30174T | P30174T00 | 1 |
| 51 | PCB9 | Circuit board | P30174S | P30174S00 | 1 |
| 52 | PCB10 | Circuit board | P30086S | P30086S00 | 1 |
| 53 | PCB11 | Circuit board | P10536X | P10536X00 | 1 |
| 54 | (1) | Resin cover | P30086G01 | P30086G01 | 1 |
| 55 | (2) | Resin cover | P30086G02 | P30086G02 | 1 |
| 56 | (3) | Operation panel film | P30209W02 | P30209W02 | 1 |
| 57 | (4) | Cover | W-W03636 | W-W03636 | 1 |
| 58 | (5) | Quick connector | 100-2218 | CX0559 | 1 |
| 59 | (6) | Handle cover | 100-1436 | DCP73BH 3‑pole H handle cover | 1 |
| 60 | (7) | Cover | 4739-476 | W-W02814 | 1 |
| 61 | (8) | Knob | 4735-038 | K-100 22RSB | 1 |
| 62 | (9) | Cover | 4735-039 | K-100 22CSBL | 1 |
| 63 | (10) | Input terminal block | K5710C00 | K5710C00 | 1 |
| 64 | (11) | Input terminal block cover | K5710D01 | K5710D01 | 1 |
| 65 | (12) | Input cable fixing | W-W03591 | W-W03591 | 1 |
| 66 | (13) | Cable fixing splint | P10565R02 | P10565R02 | 1 |
| 67 | (14) | Rubber plug with membrane | 4739-474 | W-W02805 | 1 |
| 68 | (15) | Fixed caster | 100-0201 | 420SR-RD50 | 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