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OBO lightning and surge protectors are classified into Type 1, Type 2 and Type 3 (previously B, C and D), which conform to the different requirements with regard to location, protection level and surge current arresting cap-acity. This selective lightning and surge protection guarantees a low protection level and a high arresting capacity. The classification satisfies the requirements of DIN EN 61643-11 and other international regulations. These standards contain building regulations as well as requirements and tests for surge arrestors used in AC networks with nominal voltages of up to 1,000 V and nominal frequencies of between 50 and 60 Hz.
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Lightning and surge protection systems Power Supplies
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System solutions class I + II
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System solutions class II
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