剩余电流动作断路器是一种用于保护人员和设备的电气保护装置。当电路中的电流超过设定值时，剩余电流动作断路器会自动切断电路，以防止电击和火灾等危险。IEC 62423:2009标准规定了剩余电流动作断路器的技术要求和试验方法，以确保其符合国际标准和安全要求。

该标准规定了两种类型的剩余电流动作断路器：F型和B型。F型剩余电流动作断路器带有过电流保护功能，可以在电路中出现过电流时自动切断电路。B型剩余电流动作断路器不带过电流保护功能，只能在电路中出现剩余电流时自动切断电路。两种类型的剩余电流动作断路器都有其适用范围和特点，用户可以根据实际需要选择合适的类型。

IEC 62423:2009标准还规定了剩余电流动作断路器的额定电压、额定电流、额定短路能力、动作时间、灵敏度、耐电压能力、机械寿命等技术要求。同时，该标准还规定了剩余电流动作断路器的试验方法，包括静态试验、动态试验、热试验、机械试验等，以确保其符合标准要求和安全要求。

IEC 62423:2009标准适用于家庭和类似用途的剩余电流动作断路器，包括住宅、商业和工业建筑物等。该标准旨在确保剩余电流动作断路器的安全性、可靠性和互换性，以保护人员和设备的安全。

相关标准
- IEC 61008-1:2010 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses - Part 1: Circuit-breakers
- IEC 61009-1:2010 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses - Part 1: Circuit-breakers
- IEC 62423:2013 Amment 1 - Type F and type B residual current operated circuit-breakers with and without integral overcurrent protection for household and similar uses
- IEC 61009-2-1:2016 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses - Part 2-1: Applicability of the general rules to RCBO functionally indepent of line voltage
- IEC 61009-2-2:2016 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses - Part 2-2: Applicability of the general rules to RCBOs for which the rated residual operating current does not exceed 100 mA