EN
High-density server racks bring high power load. Ordinary C13 C14 power cords cannot bear large current, which leads to overheating, voltage drop and poor contact. C19 female inlet and C20 male outlet connectors become the standard power solution for modern data center PDUs, high-power servers and UPS equipment. Strictly manufactured according to IEC 60320 international standards, they carry heavy current stably and effectively reduce thermal risks in cabinet deployment.
IEC 60320 Standard: Voltage, Current Grade and Thermal Safety
The IEC 60320 specification defines the mechanical structure, electrical parameters and safety requirements for C19 and C20 connectors.
The rated voltage reaches 250V, with three current options: 16A, 20A and heavy-duty 25A. This specification perfectly matches high-power IT hardware whose single cabinet power exceeds 10kW.
Compared with small-size C13 C14 connectors, the rectangular pin structure and reinforced plastic shell greatly improve heat dissipation. In tightly arranged server cabinets, continuous high current will raise the ambient temperature. Stable contact resistance avoids local overheating, helps pass fire safety inspection, and lowers the risk of thermal breakdown for core equipment.
Why C19 C20 Is The Must-Have Choice For Modern PDU And IT Hardware
Blade servers, core switches, storage devices and UPS power supplies need stable high-current power supply for long-term operation.
C19 female ports are installed on the main equipment, and matched with C20 male plugs on PDU power cords. The locking structure prevents accidental disconnection during cable arrangement and equipment maintenance.
C13 C14 cords can only handle current below 10A. Once the load exceeds the limit, they will heat up sharply. The 16A to 20A load capacity of C19 C20 meets the power demand of high-current hardware. It supports hot swapping of IT components and simplifies overall cable management, which is essential for building scalable high-availability data center infrastructure.
Tiantai C19 C20 PDU Power Cord Core Advantages
12 AWG Stranded Copper Conductor Reduces Voltage Drop And Heat Generation
Tiantai customized PDU cables adopt 12 AWG thick stranded copper wire. Thickened conductors cut down DC resistance significantly.
In 3 to 6 feet short-distance wiring inside the cabinet, voltage loss is controlled to the minimum. Dual power supply servers and storage arrays running under 20A to 25A load can obtain stable rated voltage.
Lower resistance also reduces Joule heat. When dozens of cables are bundled inside narrow wire grooves, the whole wire maintains good heat dissipation without overheating. The balance of conductivity, bending flexibility and thermal stability guarantees continuous power output.
LSZH Low Smoke Zero Halogen Jacket With 105℃ Heat Resistance & UL cUL Certification
Server cabinets have poor air circulation, and local temperature often rises above 70℃. Safety is the top priority for data center wiring.
Our power cord uses LSZH low-smoke zero-halogen outer sheath. In case of short circuit and open flame, it will not release toxic smoke and corrosive gas, protecting on-site staff and surrounding electronic equipment.
The long-term working temperature reaches 105℃, 15~20℃ higher than ordinary 90℃ cables. It can cope with bundled wiring and high-temperature closed cabinet environment.
UL and cUL certificates comply with North American UL 1581 flame resistance and insulation standards. Every batch of finished products passes strict mechanical testing, suitable for zero-failure mission-critical equipment.
Precise Size Ensures Full Compatibility With All Rack PDUs
All connectors are strictly produced according to IEC 60320 dimensional tolerance. The plug can be perfectly matched with metered PDUs and intelligent switched PDUs from mainstream brands, plug and play without modification.
The tight joint keeps low contact resistance even after thousands of plugging operations. Many low-standard plugs will produce intermittent power failure under 20A continuous load. Our connectors stay stable all the time.
On-site test proves that the voltage remains steady for dual power supply servers, 10G switches and all-flash storage, even running at 95% of the rated load. It avoids unexpected restart caused by voltage sag and prolongs the service life of IT hardware, meanwhile cutting on-site wiring error and construction time.
Installation Skills To Extend The Service Life Of C19 C20 Cables
Bending Radius, Strain Relief And Anti-drop Locking Design
Excessively sharp bending will damage copper strands and accelerate insulation aging. Our flexible LSZH material allows a bending radius equal to four times the wire diameter. Workers can arrange cables neatly behind dense server racks without sharp kinks.
Integrated injection molding strain relief protects the joint between plug and wire. It bears the pulling force during cable arrangement and prevents the inner copper wire from being pulled apart.
The locking structure of C19 C20 can be firmly locked after insertion. It will not loosen frequently when servers are repeatedly maintained and replaced, reducing unexpected power outages.
Long-Term Lifecycle Test: Over 5000 Plug-In Cycles
We carry out strict accelerated aging tests for finished power cords.
Each sample completes more than 5000 plugging and unplugging cycles. After the test, the contact resistance still meets the IEC 60320 standard, far exceeding the normal service cycle of data center wiring.
Continuous loading test keeps the cable running under 20A~25A current at 105℃ high temperature for a long period. Insulation and conductor performance keep unchanged without aging cracking.
We will check the surface plating, shell deformation and sheath integrity after the experiment. UL certification verifies all data independently. Data center operation teams only need regular visual inspection to keep the power system stable for many years.
FAQ
What applications use C19 and C20 connectors?
C19 female and C20 male connectors are widely used in data center PDUs, blade servers, network switches and UPS systems for high-current power supply above 10A.
What makes Tiantai C19 C20 power cords better than ordinary products?
We use 12 AWG thick copper wire to reduce heat and voltage drop, LSZH low smoke zero halogen sheath with 105℃ temperature resistance, plus UL cUL safety certification, which is more reliable for high-density server cabinets.
Why must products comply with IEC 60320 standards?
IEC 60320 unifies the size, electrical performance and safety indicators of connectors, avoiding poor contact and thermal failure, and meeting the fire control requirements of core computer rooms.
What is LSZH cable and why do data centers choose it?
LSZH means low smoke zero halogen material. It will not produce toxic smoke when burning, which effectively reduces secondary damage to personnel and equipment once a fire breaks out in the cabinet.