ISPRO-K BS(R) 100 (3+1)
The ISPRO-K BS(R) 100 (3 + 1) series of over voltage surge protective devices has been developed to protect against partial direct and indirect lightning discharges and is intended to provide protection in zones 0A – 1 as per IEC 62305.
The (3 + 1) range is intended to be used on TT three phase networks where N and PE galvanic isolation is required.
The circuit topology consists of three varistor stages each protected by a thermal disconnection device. Each unit comprises a total of three high performance dual MOV blocks, providing a surge rating suitable for branch service entrance applications. An encapsulated air gap (GDT) provides galvanic separation between the N and PE conductors.
A unique indicator monitors all disconnectors and brings up a common status flag if any one stage should fail.
Category IEC/EN/VDE | Class I/ Type1/B+C |
Location of use | Main distribution boards |
Protection modes | L-N, N-PE, |
Protection element | High Energy MOVs, high energy GDT |
High surge discharge ratings | Iimp = 25 kA/pole, Imax = 100 kA/pole |
Internal protection and safety | Separate thermal disconnector for each MOV block |
Status indication | Mechanical flag + remote contacts (R) |
Housing | Compact design |
Documentation
Data sheets:
Catalogue Pages
Connections
Declaration of Conformity:
EC Declaration of Conformity
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