Part - Leutron GmbH
Part - Leutron GmbH
Part - Leutron GmbH
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Power Engineering<br />
Class I (T1) Lightning Current Arresters<br />
IsoPro B, 2-pole<br />
IsoPro B TT1+1<br />
Modular multi-pole lightning current arrester for 1-phase TT systems.<br />
• Optional remote signalling contact (FM)<br />
L<br />
L'<br />
PE<br />
PE'<br />
N<br />
11 12<br />
N<br />
11 12<br />
Basic circuit diagram<br />
Technical Data IP B TT1+1 25/50 IP B TT1+1 60/100<br />
Nominal alternating voltage (UN) 230/400 V~ 230/400 V~<br />
Max. continuous operating alternating voltage (Uc) 255 V~ 255 V~<br />
Insulation resistance (Risol) >10 GΩ >10 GΩ<br />
Protection level at 100% lightn. imp. sparkover voltage (1.2/50 µs) (Uas) ≤ 4.0 kV ≤ 4.0 kV<br />
Protection level at Iimp (10/350 µs) [L-N] (Up) ≤ 4.0 kV ≤ 4.0 kV<br />
Response time (tA)