This page showcases the OTC DAIHEN P10263R / P10263R00 circuit board, a genuine spare part used in DM500 and DM350 welding machines. This board is critical for machine control; if your welder displays an E‑600 alarm, it often indicates a fault with this board and replacement is required. Below you will find photos, specifications, and ordering information.



The P10263R / P10263R00 is a genuine OTC DAIHEN control circuit board designed for the DM500 and DM350 welding machines. It manages essential functions such as power regulation and signal processing. A common failure mode for these welders is the E‑600 alarm, which typically indicates a problem with this board. Replacing it with this genuine OTC part restores normal operation and ensures long‑term reliability.
Part Numbers: P10263R / P10263R00
Description: Control circuit board for welding machine
Applicable Welders: OTC DAIHEN DM500, DM350
Common Failure Symptom: E‑600 alarm
Origin: Japan – genuine OTC DAIHEN production
Using authentic OTC DAIHEN P10263R circuit boards ensures correct component ratings, reliable operation, and long‑term durability. Non‑OEM boards may cause erratic behavior or recurrent alarms. As an authorized OTC DAIHEN distributor, we supply only 100% original, factory‑sealed parts.
We offer a full range of OTC DAIHEN equipment, original spare parts, and consumables. Contact us for welding machine boards, cables, controllers, and more.
For pricing, stock availability, or technical inquiries regarding the OTC DAIHEN P10263R circuit board, please contact us.
Phone / WhatsApp: +86-180-9663-1656
Email: ahojotc@gmail.com (preferred for detailed inquiries)
You are also welcome to connect on WhatsApp for technical discussions and knowledge sharing about OTC DAIHEN welding machines, cutting systems, and robotic equipment.
* For fastest response, please email ahojotc@gmail.com directly. Thank you.
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