Siemens 3EK7300-4CF4 Outdoor Surge Arrester (Ur=30 kV)
Siemens 3EK7300-4CF4 outdoor surge arrester for medium voltage networks.
The Siemens 3EK7300-4CF4 is an advanced surge arrester within the 3EK7 series, designed for robust protection of medium voltage networks in outdoor environments. It conforms to IEC60099-4 standards, with Ur=30 kV and Uc=24.0 kV, and a rated leakage current of 10 kA.
Key technical data includes a discharge voltage (Ures) of 79.5 kV at 10 kA (8/20 µs), a charge transfer rating of 0.4 C, and a thermal rated charge transfer of 1.1 C. It also supports a rated short-circuit current of 20 kA, features a creepage distance of 900 mm, and a height of 300 mm. The short-term load (SSL) is 1660 N.
Stanlo Automation, a veteran-owned supplier of industrial surplus parts, offers the Siemens 3EK7300-4CF4. We ensure that critical infrastructure is protected by providing access to high-quality surge arresters, backed by our dedication to reliable service and prompt delivery.
| Standard | IEC60099-4 |
| Ur | 30 kV |
| Uc | 24.0 kV |
| Rated Leakage Current | 10 kA |
| Ures (10 kA, 8/20) | 79.5 kV |
| Charge Transfer Rating | 0.4 C |
| Thermal Rated Charge Transfer | 1.1 C |
| Rated Short-Circuit Current | 20 kA |
| Creepage Distance | 900 mm |
| Height | 300 mm |
| Short-term Load (SSL) | 1660 N |