To help engineers and procurement personnel quickly search and verify, we have meticulously compiled all core part models, names, and specifications for the OTC Daihen AEP300 Welding Machine. This list has been professionally proofread to correct severe original manual scan errors (such as confusing O with 0, garbled symbols, and mistaking Q for Ω), consolidating identical parts for a clean and accurate display.
I. AEP300 Spare Parts Real-Time Search Table
You can directly enter the Part No. (Order No.), Symbol, or Name in the search box below, and the table will automatically filter the required parts for you:
| Part No. (Order No.) | Symbol | Name | Specifications |
|---|---|---|---|
| C0112B00 | T1 | Single-Phase Transformer | C0112B00 |
| W-W05045 | T2 | Auxiliary Transformer | W-W05045 |
| W-W05041 | T3 | High-Frequency Transformer | W-W05041 |
| C0005C00 | L1 | DC Reactor | C0005C00 |
| 300-0001 | S1 | 3-Wire Double-Throw Switch | KDDS-315-1-3 |
| P6887V01 | S1 | Handle | P6887V01 |
| 300-0024 | S2 | Switch | NP4-20X |
| 100-1439 | S3, S4, S7 | Switch | KCD3B-12 (Black) |
| 100-1440 | S5, S6 | Switch | KCD3B-102 (Black) |
| 300-0002 | LS1, 2 | Microswitch | VS10N051C2 |
| 4610-004 | F1, 3 | Glass Tube Fuse | 250V 10A |
| 4610-003 | F2 | Glass Tube Fuse | 250V 5A |
| 4610-128 | — | Fuse Holder / Clip | HF-008 |
| 300-0114 | — | Fuse Holder | FC-04B27 |
| 300-0005 | F4 | Fusible Link / Fuse | RT28-32/10A |
| 300-0003 | — | Fuse Disconnector | RT28N-32X |
| 4600-371 | PL1 | Indicator Light | ND1-25/40 380V (Red) |
| 4600-332 | PL2 | LED Light | DB-40-N-BR |
| 4600-345 | PL3 | LED Light | DB-40-N-BY |
| 4530-156 | SCR1, 2 | Thyristor Module (SCR) | PDT2504 |
| 100-0765 | TH1 | Thermostat Switch | US-602SXTTAS 120°C |
| 4258-030 | TH2 | Thermostat Switch | US-622AXTMA01 60°C |
| 300-0102 | CT1 | Hall Effect Sensor | CS-40GEH |
| 4255-016 | PS | Pressure Switch | W-W00032B |
| 100-0104 | FM | Cooling Fan | SF-200-10-4D |
| W-W05048 | FM | Fan Blade | W-W05048 (Φ250) |
| 300-0030 | FM | Starting Capacitor | CMPS45B205JWF |
| P9501E00A | SG1 | Discharge Gap | P9501E00A |
| P6887D00 | CC | Coupling Coil | P6887D00 |
| 300-0108 | SOL | Solenoid Valve | DF2-B |
| 4403-058 | A | Ammeter | 209354-HT/Z DC300A/1mA |
| 300-0067 | MS | AC Contactor | GSC1(CJX4-d)-50 |
| 4730-006 | CON1 | Socket / Connector | DPC25-4BP |
| 4730-002 | CON2 | Socket / Connector | DPC25-2BP |
| 4531-074 | DR1 | Diode | S5VB60 |
| 4531-101 | DR2 | Diode | S3V60 |
| 4531-708 | DR3 | Diode | S10VB60 |
| 4518-484 | C1, 2 | Film Capacitor | 0.1μF 200V |
| 4510-210 | C3 | Aluminum Electrolytic Capacitor | LNT2C471MSMN0E |
| 4517-401 | C5, 6, C19, 20 | Ceramic Capacitor | 0.01μF 2kV |
| 300-0087 | C7, 8 | Aluminum Electrolytic Capacitor | MAL204281109E3 |
| 4518-455 | C9-12 | Film Capacitor | 0.15μF 50V |
| 4518-481 | C13-16 | Film Capacitor | 0.47μF 400V |
| 4504-704 | R1 | Wirewound Resistor | GG200W 20Ω |
| 4504-603 | R2 | Wirewound Resistor | GG100W 10Ω |
| 4508-104 | R3 | Carbon Film Resistor | 1/2W 100kΩJ |
| 4509-804 | R4 | Cement Resistor | 40SH 390ΩKA |
| 4504-256 | R6 | Wirewound Resistor | GG80W 30Ω |
| 4509-884 | R7 | Cement Resistor | 30SH 30ΩKA |
| 4509-855 | R8 | Cement Resistor | 20SH 10ΩKA |
| 4508-121 | R9-12 | Carbon Film Resistor | RD1/2W 10ΩJ |
| 4501-042 | R13-16, R22 | Potentiometer | RV24YN20SB 100kΩ |
| 4501-039 | R17-20, R24, R25 | Potentiometer | RV24YN20SB 5kΩ |
| 4501-211 | R21 | Potentiometer | RV24YN20SB 50kΩ |
| 4501-306 | R23 | Potentiometer | RV24YN20SB 500Ω |
| 4735-025 | — | Knob | K2195 (Extra Small) |
| P6887S | PCB1 | Printed Circuit Board (PCB) | P6887S00 |
| P6887T | PCB2 | Printed Circuit Board (PCB) | P6887T00 |
| P6593X | PCB3 | Printed Circuit Board (PCB) | P6593X00 |
| P7862W | PCB4 | Printed Circuit Board (PCB) | P7862W00 |
| P7863V | PCB5 | Printed Circuit Board (PCB) | P7863V00 |
| 4735-007 | — | Knob | K2195 (Large) |
| 4730-005 | — | Metal Connector | DPC25-4A |
| 4341-101 | — | Relay | LY2-C DC24V |
| 300-0016 | — | D-Type Terminal | KT2-660V/30A-4P |
| K5505D00 | — | Secondary Terminal | K5505D00 |
| C0112W00 | — | Output Terminal | C0112W00 |
| K5199B00 | — | Input Terminal Block | K5199B00 |
| K3904C00 | — | Input Terminal Cover | K3904C00 |
*Note: Symbols marked with “—” or in brackets in the table indicate peripheral accessories or structural parts without an assigned symbol. Please purchase directly according to the Part No.
II. Genuine Parts Procurement & Technical Support
If you need to purchase the electronic components, control boards, or structural enclosure parts for the AEP300 Welder mentioned above, please provide us with the equipment nameplate and corresponding Part No. We guarantee 100% genuine original parts and provide professional technical support.
Contact Us
- Global Sales & Tech Support: +86-180-9663-1656 (WhatsApp & WeChat Same No.)
- Official Email: ahojotc@gmail.com
*Please screenshot or copy the “Part No.” you need and send it to us via WhatsApp or Email. We will provide you with real-time quotes and inventory status as quickly as possible!


