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Title:
SURGE PROTECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/130477
Kind Code:
A3
Abstract:
The invention relates to a surge protection device (SPD) having an input (IN) and an output (OUT). Between the input (IN) and the output (OUT), the surge protection device (SPD) comprises a main current path (CP1) that is short-circuit proof, and a secondary current path (CP2). In the secondary current path (CP2), a help system (H) for signaling and/or for supplying systems for improving the ignition behavior is arranged. The surge protection device (SPD) further comprises a safety fuse (3, 7) in a short-circuit proof safety fuse box (B) arranged in the secondary current path (CP2). On one side of the secondary current path (CP2, 4a), the short-circuit proof safety fuse box (B) is connected to the main current path (CP1) in a short-circuit proof manner relative to the main current path (CP1), and on the other side of the secondary current path (CP2, 5), it is connected in a substantially short-circuit proof manner relative to the safety fuse (3, 7). Furthermore, the short-circuit proof safety fuse box (B) is connected to a short-circuit proof discharge path (4b), which can convey a current past the current path of the help system (5).

Inventors:
DURTH RAINER (DE)
DEPPING CHRISTIAN (DE)
Application Number:
EP2012/001455
Publication Date:
January 24, 2013
Filing Date:
April 02, 2012
Export Citation:
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Assignee:
PHOENIX CONTACT GMBH & CO (DE)
DURTH RAINER (DE)
DEPPING CHRISTIAN (DE)
International Classes:
H02H9/06; H01H85/44; H01T1/14
Domestic Patent References:
WO2008069870A12008-06-12
Foreign References:
DE102007015364A12008-06-19
US3755715A1973-08-28
Attorney, Agent or Firm:
MICHALSKI HÜTTERMANN & PARTNER (Neuer Zollhof 2, Düsseldorf, 40221, DE)
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