This IEC C20 to C21 PDU/UPS Extension Cord is a high-quality wholesale-grade power extension product directly supplied by the factory, specifically designed for high-power equipment in data centers, enterprise server rooms, and industrial scenarios. It combines cost-effectiveness and reliable performance, perfectly adapting to the power connection needs of PDUs (Power Distribution Units), UPS (Uninterruptible Power Supplies), and heavy-duty IT equipment. As a factory-direct product, it is provided to distributors, system integrators, and large enterprise customers at wholesale prices, significantly reducing procurement costs while ensuring quality—especially suitable for scenarios requiring bulk deployment (such as server room expansion and new data center construction).
The core advantage of the product lies in the precise matching of the standard IEC-320 C20 male connector and C21 female connector: the C20 male connector can be stably inserted into the C21/C22 output interface of a PDU or UPS, while the C21 female connector is compatible with high-power devices such as servers, large storage equipment, and industrial control hosts (rated current 16A, supporting 250V voltage, and capable of bearing power demands within 4000W). This solves the power supply limitation problem caused by incompatible interfaces of traditional cables. The default length is 2 meters (customizable from 1 to 5 meters), which can flexibly adapt to the distance difference between equipment in the rack and PDU/UPS, avoiding the trouble of being too short to connect or too long to tangle.
In terms of quality and safety, the product uses high-specification materials: the conductor is 1.5mm² high-purity oxygen-free copper, with high conductivity and a low resistance of 0.012Ω/m. It has less heat loss during current transmission and can withstand 16A full-load operation for a long time without heating. The outer layer is covered with oil-resistant and flame-retardant PVC insulation, complying with the UL94 V-0 flame-retardant standard, which can self-extinguish within 30 seconds when exposed to open flames. It can also resist industrial oil pollution, chemical reagent corrosion, and extreme temperatures from -30℃ to 80℃, making it suitable for complex environments such as server rooms and factories. The interface part adopts an integrated sealed injection molding process; the C20/C21 terminals are made of tinned copper, which is anti-oxidation and anti-plugging wear. After 10,000 plugging tests, the contact resistance is still less than 50mΩ, eliminating power interruptions or equipment failures caused by poor contact.
In addition, the cable has good flexibility (minimum bending radius of 10mm), which can easily pass through rack gaps during installation and is not easy to knot when stored; the surface is printed with color codes and specification marks, facilitating bulk management and maintenance. Whether used for connecting PDUs and server clusters in data centers, backup power switching between UPS and critical equipment, or power extension of heavy-duty equipment in industrial scenarios, this wholesale-grade C20/C21 extension cord can become an ideal choice for bulk procurement with the dual advantages of "factory price + high quality," providing stable and economical power support for large-scale equipment deployment.
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