Class / Patent application number | Description | Number of patent applications / Date published |
335017000 | With switch condition signalling, indicating or alarm means | 8 |
20080272866 | Overcurrent Relay - It is an object to provide is an overcurrent relay having less number of parts and a smaller space to implement an automatic reset function and a manual reset function. | 11-06-2008 |
20090015357 | AIR CIRCUIT BREAKER WITH MECHANICAL TRIP INDICATING MECHANISM - An air circuit breaker having a mechanical trip indicating mechanism, in an air circuit breaker including a switching mechanism, an actuator having an output link for providing a mechanical driving force, a first link unit connected between the output link of the actuator and the switching mechanism for applying the mechanical driving force from the output link to the switching mechanism to perform a trip operation, a front surface plate provided with a manipulating unit accessible by a user, the air circuit breaker comprising: a first rotation lever connected to the first link unit, a second link unit limitedly moved by the first rotation lever, a bias spring for applying an elastic biasing force to the second link unit to be moved in one direction, a second rotation lever installed to be rotatable with coming in contact with one end portion of the second link unit, and a mechanical trip indicating mechanism supported by the front surface plate and having an indicating portion exposed to the front surface plate to indicate the tripped state of the air circuit breaker and a driving force receiving portion contacted with the second rotation lever to receive a driving force from the second rotation lever to expose the indicating portion. | 01-15-2009 |
20090256660 | READINESS FOR CLOSING INDICATOR FOR CIRCUIT BREAKERS - Disclosed is a visual and electrical indication on the status of “Readiness to close” (RTC) for circuit breakers. Exemplary embodiments include a circuit breaker apparatus, including a lay shaft coupled to circuit breaker contacts, a lay shaft cam profile coupled to the lay shaft, a trip free plate coupled to the lay shaft cam profile, a trip paddle coupled to the trip free plate, wherein the trip paddle is coupled to a trip shaft and a ready to close indicator coupled to the trip free plate and charging cam assembly. | 10-15-2009 |
20100201466 | Ground Fault Circuit Interrupter Device - A ground fault circuit interrupter device is described. | 08-12-2010 |
20100207712 | CONTROL OF THE DISPLAY BACKGROUND ILLUMINATION IN A POWER SWITCH - A power switch includes an electronic overcurrent protection trigger, which receives the power supply thereof from the power supply network monitored by the power switch. In at least one embodiment, the display device of the power switch acquires the power supply thereof from the power supply network monitored by the power switch, and an electronic device powered with voltage from the power supply network monitored by the power switch controls the turning on and off of the background illumination of the electronic display device, which obtains the voltage supply thereof from the power supply network monitored by the power switch, with the aid of an electronically controllable switch as a function of the measured values detected in a measuring device of the electronic device. A method for controlling the turning on and off of the background illumination of a display device of a power switch is also disclosed. | 08-19-2010 |
20110181379 | CIRCUIT BREAKER HAVING TRIP CAUSE INDICATING MECHANISM - A circuit breaker comprises a magnetic trip mechanism configured to provide a first mechanical driving force, a low voltage trip mechanism configured to provide a second mechanical driving force, a first micro switch configured to generate and output a first trip signal indicating that the circuit breaker has performed a trip operation due to the occurrence of a fault current on a circuit, a second micro switch configured to generate and output a second trip signal indicating that the circuit breaker has performed a trip operation due to the occurrence of a low voltage on the circuit, a first driving force transmission mechanism configured to transmit the first mechanical driving force from the magnetic trip mechanism to the first micro switch, and a second driving force transmission mechanism configured to transmit the second mechanical driving force from the low voltage trip mechanism to the second micro switch. | 07-28-2011 |
20130234810 | SHORT CIRCUIT INDICATOR MODULE FOR AN ELECTRICAL SWITCHING DEVICE AND ELECTRICAL SWITCHING DEVICE - A short circuit indicator module is disclosed for an electrical switching device, in particular for a circuit breaker. The electrical switching device is configured to interrupt a current flow in the event of a short circuit and/or an overload in a subordinate power circuit. The module includes a housing, a display facility for indicating tripping of the electrical switching device in the event of a short circuit and a movable unlatching element, it being possible for the display facility to be activated by a movement of the unlatching element and the unlatching element being configured to form a functional connection between the short circuit indicator module and the electrical switching device. The module is configured to test the activatability of the display facility of the short circuit indicator module and/or to test the functional connection between the short circuit indicator module and the electrical switching device. | 09-12-2013 |
20140139302 | THERMAL-MAGNETIC TRIP DEVICE FOR TRIPPING A MULTIPHASE CIRCUIT BREAKER - A trip device comprises a first transmission bar pivoting around the same pivoting axis as a ratchet by any one of several thermal actuators. The first transmission bar drives the ratchet from a latched position to a released position, and makes a first indicator change state. A second transmission bar can be pivoted around the same pivoting axis as the ratchet by any one of several magnetic actuators. This second transmission bar drives the ratchet from its latched position to its released position, and makes a second indicator change state. | 05-22-2014 |