A circuit breaker that includes circuit breaker poles, an operating mechanism and a tripping system. Each circuit breaker pole includes a pole housing and a contact system that includes a moving contact mechanism and a static contact. The operating mechanism drives the moving contact mechanisms. The tripping system includes groups of tripping mechanisms and an adjusting mechanism. Each group of tripping mechanisms includes a conductive plate, a magnetic yoke and an armature. The conductive plate passes through the magnetic yoke. Each circuit breaker pole has a group of tripping mechanisms. Each contact system is electrically connected to a corresponding conductive plate Each adjusting mechanism includes a linkage rod. Each group of the tripping mechanisms includes an insulated transmission rod having one end inserted into the pole housing and connected to the armature, and another end that protrudes out of the pole housing and trips the operating mechanism.

A circuit breaker that includes circuit breaker poles, an operating mechanism and a tripping system. Each circuit breaker pole includes a pole housing and a contact system that includes a moving contact mechanism and a static contact. The operating mechanism drives the moving contact mechanisms. The tripping system includes groups of tripping mechanisms and an adjusting mechanism. Each group of tripping mechanisms includes a conductive plate, a magnetic yoke and an armature. The conductive plate passes through the magnetic yoke. Each circuit breaker pole has a group of tripping mechanisms. Each contact system is electrically connected to a corresponding conductive plate Each adjusting mechanism includes a linkage rod. Each group of the tripping mechanisms includes an insulated transmission rod having one end inserted into the pole housing and connected to the armature, and another end that protrudes out of the pole housing and trips the operating mechanism.

A trip device for a circuit breaker includes: a crossbar rotatably installed to perform the trigger function; and bimetal that is curved upon the occurrence of an abnormal current and presses and rotates the crossbar by means of a gap adjustment member. The crossbar is movable in the direction of a rotating shaft of the crossbar, and the gap adjustment member is attached to and detached from either the crossbar or the bimetal at varying angles so that a contact surface is parallel or at an angle to the direction of movement of the crossbar.

A switching device includes: a triggering unit; an actuator coupled to the triggering unit; a switching mechanism coupled to the actuator; and an interface module. The interface module includes: a signal processing unit coupled to the triggering unit; an interface circuit coupled to a transmitting and receiving circuit of the signal processing unit; a power supply input for feeding a first supply voltage; and a voltage converter connected on an input side to the power supply input and a power outlet for issuing a second supply voltage. The power outlet is coupled to the signal processing unit and to the triggering unit.

A switching device includes: a triggering unit; an actuator coupled to the triggering unit; a switching mechanism coupled to the actuator; and an interface module. The interface module includes: a signal processing unit coupled to the triggering unit; an interface circuit coupled to a transmitting and receiving circuit of the signal processing unit; a power supply input for feeding a first supply voltage; and a voltage converter connected on an input side to the power supply input and a power outlet for issuing a second supply voltage. The power outlet is coupled to the signal processing unit and to the triggering unit.

The disclosure relates to an energy supply apparatus for the overcurrent-protected electric power supply to an electric consumer, including a power supply device configured to provide an electric current for the electric consumer, and a controllable power protection element configured to disable a supply of electric current to the electric consumer when the electric current reaches a first current limit value, wherein the controllable power protection element comprises an adjustable second current limit value set by the power supply device, wherein the power supply device receives an increased power requirement of the electric consumer within a time interval and to control the controllable power protection element for a duration of the time interval to set the second current limit value, and wherein the controllable power protection element disables the supply of the electric current to the electric consumer upon reaching the second current limit value by the electric current.

A circuit breaker includes a short-circuit trip and an overcurrent trip. The short-circuit trip has a trip coil, and the overcurrent trip has a bimetallic element. A first terminal of the trip coil is conductively connected to a fixed contact carrier of the circuit breaker. The bimetallic element is connected in series with the trip coil. The bimetallic element is connected at least indirectly to a first connection terminal of the circuit breaker, and the first connection terminal is connected to the fixed contact carrier by a bypass line.

A circuit breaker is described herein. In one aspect, the circuit breaker includes a communication module, a non-transitory memory device, and a memory controller. The communication module is configured to receive protection settings and breaker information from a trip unit coupled to the communication module. The protection settings and the breaker information are received upon powering-on the trip unit. The non-transitory memory device is configured to store the protection settings and the breaker information associated with the circuit breaker. The memory controller is configured to cause the protection settings and the breaker information received to be written to the non-transitory memory device.

A circuit breaker is described herein. In one aspect, the circuit breaker includes a communication module, a non-transitory memory device, and a memory controller. The communication module is configured to receive protection settings and breaker information from a trip unit coupled to the communication module. The protection settings and the breaker information are received upon powering-on the trip unit. The non-transitory memory device is configured to store the protection settings and the breaker information associated with the circuit breaker. The memory controller is configured to cause the protection settings and the breaker information received to be written to the non-transitory memory device.

Embodiments of the present disclosure disclose a method for improving a performance of a pulsed-ultraviolet (PUV) device. The method includes monitoring an input current across a circuit breaker in communication with a UV lamp, where the input current is delivered by a power signal and is interrupted by the circuit breaker upon exceeding a predefined cut-off current; generating a pulse signal having a set of frequencies based on the power signal for driving the UV lamp, where the pulse signal is associated with a predetermined cut-off frequency that increases the input current beyond the cut-off current; determining a predefined threshold current less than the cut-off current; and configuring the pulse signal with multiple distinct pulse frequencies per second for a predefined configuration period based on the input current exceeding the threshold current. The distinct pulse frequencies per second include at least one pulse frequency greater than the cut-off frequency.