1.Designed to be installed at the incoming of the AC installations equipped with LPS (Lightning Protection System).
2.These surge protectors are tested following Type 1 tests from IEC 61643-11 characterized by 10/350μs lightning current.
3.Iimp per pole: 25kA and 50 kA
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Type 1 surge protectors
Type 1 surge protectors are designed to be installed when a direct lightning strike risk is high, especially when the building is equipped with external lightning protection system (LPS or lightning rod).
Type 2 surge protectors
Type 2 surge protectors are designed to be installed at the entrance
of the installation, in the main switchboard, or close to
sensitive equipment, on installations without LPS (lightning
rods).
Type 3 surge protectors
In case of very sensitive or remote equipment, secondary stage
of surge protectors is required : these low energy SPDs could be
Type 2 or Type 3 (see «Coordination of surge protector» page 20).
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