YES1-63MA PC‑Class Dual‑Power Automatic Transfer Switch

This series of household automatic transfer switches represents our company's latest R&D and production of miniature residential power‑transfer devices. Classified as PC‑grade, non‑frequent‑operation transfer switches with a two‑pole design, they are suitable for AC distribution systems operating at 50/60 Hz and rated currents from 6 A to 63 A. Their primary function is to monitor the integrity of the user's power supply; when one source detects an abnormality, the switch immediately transfers load to the other. Internally, the device incorporates both mechanical and electrical interlocks to prevent simultaneous closing of both power feeds, thereby ensuring continuous, reliable, and safe power supply.

YES1-1600S PC‑Class Dual‑Power Automatic Transfer Switch

It is suitable for distribution systems with a rated operating voltage of AC 400 V. When the power supply experiences phase loss, overvoltage, undervoltage, or other faults, the transfer switch, under controller supervision, can swiftly transfer the load from the primary power source to the backup power source—provided that the backup source is functioning normally. Users may also, as needed, place the load in an intermediate position, disconnecting it from both the primary and backup power sources. This product is primarily intended for Class I and Class II loads as defined by national standards and is widely applicable to facilities requiring continuous power supply, such as fire‑fighting systems, postal and telecommunications facilities, hospitals, hotels, urban rail transit systems, high‑rise buildings, industrial production lines, and television stations.

YECPS2-45 Control and Protection Switch

This series of control and protection switching devices represents a new generation of low-voltage electrical apparatus, offering a range of advantages, including integrated control and protection functions, modular construction, compact dimensions, a high degree of protection against environmental contamination, and convenient installation, operation, and maintenance. They are primarily intended for use in AC power systems with a frequency of 50 Hz, a rated insulation voltage of up to 690 V, and currents ranging from 0.2 A to 125 A, where they can make, carry, and break current under normal conditions—including specified overload conditions—and also make, carry, and break current under specified abnormal conditions (such as short-circuit currents).