Part - Leutron GmbH

Power Engineering
Class I+II (T1+T2) Combined Arresters
IsoPro BC, 2-pole
• All-in-one modular protection unit, ready for
connection
• Discharge capacity up to 100 kA (10/350µs)
• High insulation resistance
• Protection level = 2 kV
• V-wiring with multi-functional terminals
• No leakage currents, thus, allowing installation
upstream of power meters
• On the basis of hermetically sealed rare-gas-filled
spark gaps
• No blow-out vents, thus, not requiring any safety
clearance to other installations
• Optional remote signalling contact (FM) requiring no
additional space
Two-pole combined arrester for the protection of low-voltage
consumers’ installations in industry, business and residential
areas against transient surges caused by lightning (LEMP) or
switching actions in the network (SEMP).
The arresters can be installed at the transition 0A to 2
according to the lightning protection zones concept.
The single-phase (2-pole) IsoPro series is subdivided into the
following performance groups and voltage protection levels:
• 25 kA and 60 kA (10/350 µs) per active conductor or, at TT
systems, between N and PE 100 kA (10/350 µs), and between
the active conductors and PE or N, therefore in
total: 50 kA or 100 kA.
• It is classified as class I+II (T1+T2) SPD (former category
B+C) with a voltage protection level of 2 kV or < 2,5 kV
depending on the impulse current load.
All other features correspond to those of the multi-pole combined
arresters.
Leutron GmbH · Humboldtstrasse 30 · 70771 Leinfelden-Echterdingen · Germany · Phone +49 711 94771-0 · www.leutron.de
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