Remote controlled overload protective switch
First Claim
Patent Images
1. A remotely controllable circuit breaker comprising:
- a remote-control switch;
an electronic control unit coupled to the remote-control switch;
an electromagnetic switch drive, controlled by the electronic control unit, for switching an electric circuit;
a switch lock for latching the electromagnetic switch drive in a first switching position when the electric circuit is closed;
a bi-metal, coupled to the electric circuit, for providing a bi-metal release of the electromagnetic switch drive by unlatching the switch lock from the electromagnetic switch drive in response to an overcurrent condition of the electric circuit so that the electric circuit is interrupted; and
an auxiliary switch, actuated by the switch lock in response to the bi-metal release, for providing a signal to the electronic control unit for turning off the remote control switch and for re-latching the electromagnetic switch drive by the switch lock in a second switching position of the electromagnetic switch drive.
1 Assignment
0 Petitions
Accused Products
Abstract
A circuit breaker which is remote controllable by an external remote control switch by way of an electronic control unit and an electromagnetic switch drive controlled by the electronic control unit. The switch drive switches the electric circuit by a switch lock, which is latched to it and which, during an overload, is unlatched and opened by way of the release of the bimetal of switch drive and, as a result, interrupts the electric circuit. During bimetal release, an auxiliary switch is actuated, which by way of the electronic control unit turns the remote control switch off and re-latches switch drive with the opened switch lock.
-
Citations
25 Claims
-
1. A remotely controllable circuit breaker comprising:
-
a remote-control switch; an electronic control unit coupled to the remote-control switch; an electromagnetic switch drive, controlled by the electronic control unit, for switching an electric circuit; a switch lock for latching the electromagnetic switch drive in a first switching position when the electric circuit is closed; a bi-metal, coupled to the electric circuit, for providing a bi-metal release of the electromagnetic switch drive by unlatching the switch lock from the electromagnetic switch drive in response to an overcurrent condition of the electric circuit so that the electric circuit is interrupted; and an auxiliary switch, actuated by the switch lock in response to the bi-metal release, for providing a signal to the electronic control unit for turning off the remote control switch and for re-latching the electromagnetic switch drive by the switch lock in a second switching position of the electromagnetic switch drive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
Specification