EP 0389075 B1 19940216 - Power circuit breaker with an undervoltage tripping device.
Title (en)
Power circuit breaker with an undervoltage tripping device.
Title (de)
Leistungsschalter mit einem Unterspannungsauslöser.
Title (fr)
Disjoncteur avec un déclencheur à minimum de tension.
Publication
Application
Priority
DE 3909553 A 19890320
Abstract (en)
[origin: EP0389075A1] 2.1 An auxiliary device is described in order to render ineffective the undervoltage tripping device (10) of a power circuit breaker (1) when it is intended to carry out servicing or repair tasks on the power circuit breaker (1). 2.2. The armature of the undervoltage tripping device can be transferred into its operating position by means of an auxiliary key (7) and can be blocked there. A profiled access opening (34) for the auxiliary key (7) is assigned to a pressing lever (25), which is supported such that it can pivot. The pressing lever (25) has a curved track (26) for supporting the bit (27) of the auxiliary key (7) and is designed in a self-sprung manner. 2.3 The auxiliary device is especially suitable for low-voltage power circuit breakers. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 9/28 (2006.01); H01H 71/10 (2006.01); H01H 83/12 (2006.01)
CPC (source: EP)
H01H 71/1054 (2013.01); H01H 83/12 (2013.01); H01H 2071/006 (2013.01); H01H 2300/066 (2013.01)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 0389075 A1 19900926; EP 0389075 B1 19940216; DE 3909553 A1 19900927; DE 59004572 D1 19940324
DOCDB simple family (application)
EP 90250069 A 19900314; DE 3909553 A 19890320; DE 59004572 T 19900314