Import 63a Solar Panel Load Auto Changeover Switch Ats — Buy in wholesale FOB from Supplier in China

The RDQ3NX-A/B/C/D series 63A Solar Panel Load Auto Changeover Switch ATS by Radin Electric Technology Co., Ltd. is a modular dual-power transfer device introduced in 2009 to address limitations of MCB-type ATS units, including insufficient functionality and reliability. This series holds three patents (invention, utility model, and appearance) and integrates two MCB circuit breakers with a mechanical interlock system and intelligent controller. The A, B, C, and D control configurations offer progressive features: A provides auto changeover, auto recovery, and phase-missing protection; B adds generator start, fire linkage, and time delay; C and D include three-phase voltage monitoring.

Constructed with a gear-driven mechanical transmission to prevent simultaneous closing, the RDQ3NX series maintains overload and short-circuit protection inherent to the breakers. Its compact design is among the smallest in the market, with a working power voltage range of AC200-400V and a peak power loss of 4.8W, roughly 20% of comparable products. The modular design allows independent replacement of executive units, transmission mechanisms, and control circuits, while single-chip control separates working and sampling power to mitigate electromagnetic interference. Typical for solar ATS applications, the unit supports seamless switching for critical loads in off-grid or hybrid systems.

This ATS is used in solar power installations, backup generator systems, and industrial facilities requiring uninterrupted power for sensitive equipment. Buyers include solar farm operators, commercial building managers, and OEMs integrating power reliability solutions. The series supports various executive circuit breakers and is designed for easy installation and component interchangeability. Originating from Yueqing, Zhejiang, the product is shipped globally, with delivery terms negotiable based on order volume and destination.

Radin Electric Technology Co., Ltd. is based in the Economic Development Zone of Yueqing, Zhejiang Province, China, with a registered address at No.319 Latitude 18th Road. The company specializes in the design and manufacturing of automatic transfer switches, with a focus on innovative solutions for power reliability. Its RDQ3NX series, introduced in 2009, reflects a commitment to addressing gaps in existing ATS technologies, as evidenced by its patented designs and modular construction.

The supplier holds a harbor trust tier, indicating a verified operational presence, though its response rate and average response time are currently unrecorded. Radin Electric Technology Co., Ltd. positions itself as a technical leader in ATS products, offering engineering support and after-sales service for applications ranging from solar to industrial power systems. The company’s product portfolio includes CB-type dual power transfer switches, with a focus on compact, efficient, and reliable designs.