Guided by the mission of "Higher, Finer, More Comprehensive", DAQUAN Electric is committed to delivering high-standard management, core product quality, and services, and striving for a bright future with global clients.
Elevate your product line with our professional OEM and ODM services. We partner with you to bring your visions to life. Whether you have precise specifications for us to manufacture (OEM) or need a complete, custom solution from concept to final product (ODM), our team is your reliable partner.
We offer exceptional flexibility, strict quality control, and competitive pricing. Leverage our expertise to create market-leading products under your own brand, saving you time and development costs. Let's collaborate to build something great.
Wenzhou DAQUAN Electric Co., Ltd, founded in 1996, is a professional manufacturer dedicated to high-quality electrical products—specializing in producing reliable relays, timers, time switches, energy meters, and other electrical devices with WiFi function for global industrial & daily use. Based in Xinguang Industrial Zone of Wenzhou, the company has excellent transportation access: close to National Highway 104, 30km from Wenzhou Airport, and 20 minutes from Qili Gang Port, enabling smooth multi-modal logistics. Operating in the industrial control and automation sector, we focus on R&D, production and customization of core industrial control and automation devices (with partial models integrated with WiFi). Backed by a professional team and advanced foreign technologies, we offer stable OEM/ODM services, with products certified to CE, ROHS, IEC and TUV standards, and the company holding ISO9001 certification.
In today's fast-paced market, agility wins. We eliminate the wait with our exceptionally rapid production cycles and streamlined supply chain, ensuring your products move from our factory floor to your doorstep in record time. Our efficient manufacturing processes and strategic logistics partnerships allow us to offer faster turnaround times than industry standards, without compromising on quality. This means you can capitalize on trends, reduce inventory costs, and satisfy customer demand instantly. Choose a partner who values your time as much as you do.
Set overvoltage and undervoltage thresholds on 220V DIN-rail protectors: typical 170-190V and 250-270V ranges, hysteresis, delays, and JGQ and JGKL key steps.
On-delay, off-delay, interval, and cyclic time relay functions explained with IEC 61812 function letters and DAQUAN H3BA-8, DH48S examples.
Mechanical 24-hour or digital weekly DIN-rail time switch? Compare precision, program flexibility, outage backup, cold tolerance, and budget.
Program the DAQUAN DHC15A weekly timer: set the clock, build weekday ON/OFF events up to 32, test manual override, and trust the 3-year battery backup.
Maintenance engineers: diagnose relay chattering, slow release and welded contacts with meter checks and visual inspection, then fix the root cause.
Motor control engineers: learn how to set the star-delta transition delay, coordinate KM1, KM2 and KM3 with the timer, and avoid starting current surges.