MODULAR ACCESSORY SYSTEM FOR PANEL BOARD

A modular accessory system is structured to be mounted in a panel board including a housing assembly and a number of conductors with each conductor having a number of stabs extending therefrom. The modular accessory system includes an interface assembly structured to be selectively coupled to the panel board and a number of modules disposed on the interface assembly. Each module is structured to at least monitor or regulate one or more attributes of the panel board. 1. A modular accessory system structured to be mounted in a panel board including a housing assembly and a number of conductors , each conductor including a number of stabs , the modular accessory system comprising:an interface assembly structured to be selectively coupled to the panel board; anda number of modules disposed on the interface assembly, each module being structured to at least monitor or regulate one or more attributes of the panel board.2. The modular accessory system of wherein the interface assembly comprises a number of fastening mechanisms claim 1 , each fastening mechanism being structured to selectively couple the interface assembly to the panel board.3. The modular accessory system of wherein each module of the number of modules is selectively coupled to the interface assembly.4. The modular accessory system of wherein a portion of each module of the number of modules cooperatively engages a corresponding portion of the interface assembly.5. The modular accessory system of wherein the interface assembly is formed from at least one of: urea claim 1 , glass polyester claim 1 , or thermoplastic.6. The modular accessory system of wherein one of the number of modules is structured to detect an electrical surge in the panel board.7. The modular accessory system of wherein one of the number of modules is structured to detect a loss of neutral in the panel board.8. The modular accessory system of wherein at least one of the modules comprises a user interface including a visual display.9. ...

Ground fault current interrupter/arc fault current interrupter circuit breaker with fail safe mechanism

A circuit breaker includes a pair of separable contacts forming a pole, an operating mechanism for operating the electrical contacts, an electronic tri p circuit responsive to currents flowing through the pole for operating the operating contacts, and a fail-safe mechanism for operating the operating mechanism in solenoid that is electrically connected to be energized in response to a failure in the electronic trip circuit and a linkage that operates the operating mechanism in response to operation of the solenoid. A n operating arm that moves in response to the solenoid, interacts with operati ng mechanism to prevent resetting of the operating mechanism following actuatio n of the solenoid.

Arc fault detector with protection against nuisance trips and circuit breaker incorporating same

An arc fault detector (29) of the type which generates a trip signal when a time attenuated accumulation of pulses produced each time an arc is struck reaches a selected value, includes a pulse conditioner (105) which discriminates against false trips induced by phenomena such as tungsten bulb burn out and turn on of a cold tungsten bulb (101) controlled by a dimmer (111). The pulse conditioner (105) includes a zener diode (107) which limits the amplitude of the pulses applied to the integrator, and stretches all of the pulses to reduce the variation in pulse duration. The latter can be accomplished by a peak detector (109) which stretches pulses which reach the zener limit to a duration of at least about a half cycle.

Circuit breaker with sense bar to sense current from voltage drop across bimetal

The stray inductance created by the loop formed by voltage sensing conductors connected to opposite ends of the bimetal in a miniature circuit breaker for determining load current is reduced by joining a voltage sense bar to the free end of the bimetal. The voltage sense bar extends beside the bimetal toward the fixed end of the bimetal where an insulated wire connected to the free end of the sense bar forms a twisted pair with an insulated wire secured to the fixed end of the bimetal.

Arc fault detector with protection against nuisance trips and circuit breaker incorporating same

Circuit breaker and device to detect arc faults.

"DISJUNTOR E APARELHO PARA DETECTAR FALHAS DE ARCO". Detector de falha de arco (29) do tipo que gera um sinal de disparo quando um acúmulo atenuado de tempos de pulsos produzidos cada vez que um arco é criado alcança um valor selecionado, inclui um condicionador de pulsos (105) que distingue entre disparos falsos induzidos por fenómenos tais como queima de lâmpada de tungstênio e ligar de uma lâmpada de tungstênio fria (101) controlada por um reostato (111). O condicionador de pulsos (105) inclui um diodo zener (107) que limita a amplitude dos pulsos aplicados ao integrador, e prolonga todos dos pulsos para reduzir a variação na duração de pulso. O último pode ser realizado por um detetor de picos (109) que prolonga pulsos que alcançam o limite zener para uma duração de pelo menos meio ciclo.

Circuit breaker

(57)【要約】 【課題】 アーク故障の誤表示を惹き起こすタングステ ン電球（１０３）の焼損や低温タングステン電球の点灯 のような他の現象の影響を最小限に抑えるアーク故障検 知器を組み込んだ回路遮断器を提供する。 【解決手段】 アークが発生するたびに生じる電流パル スの時間減衰積分値が所定レベルになるとトリップ信号 を発生するアーク故障検知器（２９）は、積分器（７ １）に印加されるパルスの振幅を制限するツェナーダイ オード（１０７）よりなるパルス調整手段（１０５）を 有する。このパルス調整手段はさらに、パルスを引き伸 ばすことによりパルスの持続時間のばらつきを減少させ るパルス引き伸ばし手段を有する。パルス引き伸ばし手 段は、ツェナーダイオードよる振幅制限値に到達したパ ルスの持続時間を少なくとも約一半サイクルに引き伸ば すピーク検出器（１０９）よりなる。

回路遮断器

(57)【要約】 【課題】 相導体中性導体間のような回路遮断器のトリ ップ回路に金属酸化物バリスタのような過電圧検知回路 を用いた回路遮断器を提供する。 【解決手段】 過電圧検知回路は、トリップコイルがサ ージテスト時の高電圧サージをブロックするのを可能に し、また十分な大きさの相導体中性導体間電圧が適当な 持続時間の間回路遮断器に印加されると、トリップコイ ルを付勢して回路遮断器をトリップする。

Modular accessory system for panel board

A modular accessory system is structured to be mounted in a panel board including a housing assembly and a number of conductors with each conductor having a number of stabs extending therefrom. The modular accessory system includes an interface assembly structured to be selectively coupled to the panel board and a number of modules disposed on the interface assembly. Each module is structured to at least monitor or regulate one or more attributes of the panel board.