The accredited testing laboratory Phoenix Contact offers innovative technologies, products, and solutions in the fields of electrical engineering and automation. The System Protection Technologies division is intensively involved in basic research in the field of surge protection, as well as in the development and production of related protective devices. Covering 1,300 m² of space, the company operates a modern, high-performance, accredited laboratory for testing surge protective devices. Here, among other things, disruptive events can be imitated, such as those that occur during lightning strikes, switching operations, or electrostatic discharge. Our range of services • Complete testing of lightning current arresters and surge protective devices in accordance with standards IEC/EN 61643-11, IEC/EN 61643-21, IEC/EN 61643- 31, IEC/EN 61643-41, and UL 1449 • Lightning surge current testing with pulse shape (10/350) μs with an amplitude of up to 100 kA • Surge current testing with pulse shape (8/20) μs up to an amplitude of 200 kA • Verification of the effectiveness of surge protection concepts based on IEC TR 61643-03 • Dielectric strength tests up to 12 kV AC or 16 kV DC • Single- and three-phase short-circuit current tests up to ... ... 50 kA up to 500 V/50 Hz ... 25 kA up to 1,000 V/50 Hz 2 Phoenix Contact

The high-current test laboratory Tests with surge current pulses up to 100 kA (8/20) μs in combination with a powerful alternating current source on surge protective devices are possible here. The test simulates the operating behavior of the protective devices and their interaction with the power supply system in the event of surge voltage. In addition to this specific test for surge protection devices, the test bench can be used universally for single- to three-phase applications. 4 Phoenix Contact

Surge current testing technology The surge current testing system generates lightning currents with a waveform of (10/350) μs to 100 kA and surge currents with a waveform of (8/20) μs to 200 kA. This enables surge protective devices in the highest performance class to be tested in compliance with standards. In order to generate the pulses, energy is provided at 141 kJ, which is taken from a capacitor bank with 44 μF and a maximum charging voltage of 80 kV. A modular measurement data acquisition system with a high sampling rate provides highly accurate measurement data. Direct current testing technology The standalone DC testing system consists of a powerful DC power source and a special pulse current generator. This generator is set up to precisely meet the requirements in the field of direct current testing technology. The system offers the option of coupling power pulse currents (8/20) μs into the DC system in order to qualify the surge protective devices for DC applications. Among other tests, this system permits tests in accordance with IEC/EN 61643- 31, “Requirements and test methods for SPDs for photovoltaic installations”, and IEC/EN 61643-41, “Surge protective devices connected to DC low-voltage power systems – Requirements and test methods”. The DC source is also used for tests with short-circuit currents up to 7,000 A. The voltage can be adjusted in 1 V increments up to 2,500 V DC. Lightning surge current generator Direct current testing system 6 Phoenix Contact

Open communication with customers and partners worldwide Phoenix Contact is a global market leader based in Germany. We are known for producing forward-thinking products and solutions for the comprehensive electrification, networking, and automation of all sectors of the economy and infrastructure. With a global network, we maintain close relationships with our customers, something we believe is essential for our common success. You can find your local partner at phoenixcontact.com 2 0 / 5 1 - 7 0 - 6 2 0 2 / 8 2 4 6 5 9 1 R N M 3 8 2 1 2 3 3 1 0 3