微型斷路器，電氣行業(yè)簡稱為MCB，適用于交流50/60Hz額定電壓230/400V，額定電流至63A線路的過載和短路保護之用，也可以在正常情況下作為線路的不頻繁操作轉(zhuǎn)換之用。

Miniature circuit breaker, abbreviated as MCB in the electrical industry, is suitable for overload and short-circuit protection of AC 50/60hz lines with rated voltage of 230/400v and rated current of 63A. It can also be used for infrequent operation and conversion of lines under normal conditions.

剩余電流保護裝置(電氣行業(yè)簡稱RCD)，又稱“漏電開關”，是一種利用檢測被保護電網(wǎng)內(nèi)所發(fā)生的相線對地漏電或觸電電流的大小，而作為發(fā)出動作跳閘信號，并完成動作跳閘任務的保護電器。在裝設漏電保護器的低壓電網(wǎng)中，正常情況下，電網(wǎng)相線對地泄漏電流（對于三相電網(wǎng)中則是不平衡泄漏電流）較小，達不到漏電保護器的動作電流值，因此漏電保護器不動作。

Residual current protection device (RCD for short in the electrical industry), also known as "leakage switch", is a kind of protection appliance that detects the magnitude of phase line earth leakage or electric shock current in the protected power grid, and acts as an action tripping signal to complete the action tripping task. In the low-voltage power grid equipped with leakage protectors, under normal circumstances, the phase line to ground leakage current of the power grid (unbalanced leakage current in the three-phase power grid) is small and cannot reach the operating current value of the leakage protectors, so the leakage protectors do not operate.

當被保護電網(wǎng)內(nèi)發(fā)生漏電或人身觸電等故障后，通過漏電保護器檢測元件的電流達到其漏電或觸電動作電流值時，則漏電保護器就會發(fā)生動作跳閘的指令，使其所控制的主電路開關動作跳閘，切斷電源，從而完成漏電或觸電保護的任務。RCD具有過載和短路保護功能，可用來保護線路或電動機的過載和短路，亦可在正常情況下作為線路的不頻繁轉(zhuǎn)換啟動之用。

In case of leakage or personal electric shock and other faults in the protected power grid, when the current of the detection element through the leakage protector reaches its leakage or electric shock action current value, the leakage protector will give an action tripping command to make the main circuit switch controlled by it act to trip and cut off the power supply, so as to complete the task of leakage or electric shock protection. RCD has overload and short-circuit protection functions, which can be used to protect the overload and short-circuit of lines or motors, and can also be used for infrequent switching and starting of lines under normal conditions.

二者都起線路過載保護作用。微型斷路器是控制電氣回路的分合開關，若以空氣為滅弧介質(zhì)的稱空氣開關。一般以額定電流（負荷）選擇，做為電氣回路的總開關使用。漏電開關是集過載、短路和漏電保護于一體，可獨立安裝，相當于漏電保護器加微型斷路器或漏電附件加微型斷路器。

Both play the role of line overload protection. Miniature circuit breaker is the on-off switch that controls the electrical circuit. If air is used as the arc extinguishing medium, it is called air switch. Generally, the rated current (load) is used as the main switch of the electrical circuit. The leakage switch integrates overload, short circuit and leakage protection and can be installed independently, which is equivalent to leakage protector plus miniature circuit breaker or leakage accessories plus miniature circuit breaker.

ABB微型斷路器價格廠家提醒，可以簡單理解為當一個微型斷路器帶有漏電保護功能時，稱之為漏電保護開關。如果是一個單單用于漏電保護的電氣裝置，則稱之為漏電保護器。

The price of ABB miniature circuit breaker is reminded by the manufacturer. It can be simply understood that when a miniature circuit breaker has leakage protection function, it is called leakage protection switch. If it is an electrical device only used for leakage protection, it is called leakage protector.

微型斷路器與剩余電流保護斷路器的異同內(nèi)容分析就是如此了，您可以關注我們網(wǎng)站www.haoyuanxb.com咨詢了解更多關于該設備的信息。

This is the content analysis of the similarities and differences between miniature circuit breaker and residual current protection circuit breaker. You can follow our website www.jntongyu Com for more information about this device.