Title (en)

SAFETY SWITCH

Publication

EP 0171775 A3 19870429 (DE)

Application

EP 85110059 A 19850809

Priority

DE 3429647 A 19840811

Abstract (en)

[origin: EP0171775A2] A safety switch is shown and described, namely a socket (1), to be precise a socket (1) which can be inserted with a plug into a wall socket, the socket (1) having an earth-leakage current measuring device (2) and a protection switch (4) which interrupts the circuit to be closed or opened if an earth-leakage current is detected. In the safety switch according to the invention, the operation of the protection switch (4) in the event of detection of an earth-leakage current takes place without any control current, such that an electromagnet - having a coil (5) and a core (6) - is connected to the earth-leakage current measuring device (2), whose coil (5) is electrically connected to the earth-leakage current measuring device (2), and whose core is mechanically connected to the protection switch (4) and transfers the protection switch (4) into the protection switch "off" position following detection of an earth-leakage current which de-energises the coil (5), by means of a return spring (7) engaging with the core (6), and the coil (5) which is subjected to current is adjustable, by means of an adjusting mechanism, taking with it the immersed core (6) and tensioning the return spring (7), from the protection switch "off" position to the protection switch "on" position.

IPC 1-7

H01H 83/02; H01R 13/713

IPC 8 full level

H01H 71/24 (2006.01); H01H 83/02 (2006.01); H01R 13/713 (2006.01)

CPC (source: EP KR)

H01H 9/00 (2013.01 - KR); H01H 83/02 (2013.01 - EP); H01R 13/7135 (2013.01 - EP)

Citation (search report)

• [A] DE 2256585 A1 19730530 - SAPAREL
• [A] DE 2246845 A1 19740328 - BBC BROWN BOVERI & CIE
• [A] US 4079344 A 19780314 - LAUBEN ROBERT W, et al

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0171775 A2 19860219; EP 0171775 A3 19870429; AU 4597085 A 19860213; DE 3429647 A1 19860220; DE 3429647 C2 19870813; DK 362885 A 19860212; DK 362885 D0 19850809; ES 546023 A0 19861016; ES 8700496 A1 19861016; FI 853021 A0 19850806; FI 853021 L 19860212; JP S61107629 A 19860526; KR 860002123 A 19860326; NO 853152 L 19860212

DOCDB simple family (application)

EP 85110059 A 19850809; AU 4597085 A 19850809; DE 3429647 A 19840811; DK 362885 A 19850809; ES 546023 A 19850809; FI 853021 A 19850806; JP 17442785 A 19850809; KR 850005783 A 19850810; NO 853152 A 19850809