请注意:此版本的所有临时修订版将在您购买时提供。固态过电流保护器UL 23671范围1。1本标准涵盖固态过电流保护器。这些设备是固态开关，当输出负载超过电流限制阈值或存在负载侧短路时，将输出电流限制在安全水平。固态过电流保护器用于隔离变压器、电源或电池的负载侧，以提供辅助保护。最大电流和功率水平见表1.1。1.2这些要求涵盖的装置为集成电路，装置内的电气间距未规定。1.3这些要求涵盖的设备本质上完全是电子设备，没有手动操作或重置的手段。1.4这些要求涵盖的设备端子仅用于工厂布线（拟安装在印刷线路板上）。 1.5这些要求涵盖的设备只能用于源于隔离变压器、电源或电池的供电电路，其最大电流和功率水平有限，如表1.1所示。在功率容量较高的电源电路上使用时，需要对可靠性进行额外评估，例如采用固态控制的安全相关控制标准UL 991.1.6中包含的要求。这些要求所涵盖的设备将输出电流限制在小于5安培过流保护额定值的值。1.7这些要求涵盖的设备仅针对变压器、电源或电池负载侧提供的二次电路的补充过电流保护进行了评估，而未针对分支电路保护进行评估。1.8本标准可涵盖拟用于电信应用的设备。然而，最终应评估拟连接到具有外部工厂连接的电信网络的设备- 按照信息技术设备安全标准第1部分:一般要求UL 60950-1或通信电路二次保护器标准UL 497A（视情况而定）的要求使用。

Please note: All interim revisions for this edition available at time of your purchase will be included.Solid State Overcurrent ProtectorsUL 23671 Scope1.1 This standard covers solid-state overcurrent protectors. These devices are solid-state switches that limit the output current to a safe level when the output load exceeds the current-limit threshold or when a load-side short-circuit is present. Solid-state overcurrent protectors are intended to be used on the load-side of an isolating transformer, power supply or battery to provide a means of supplementary protection. See Table 1.1 for maximum current and power levels.1.2 The devices covered by these requirements are integrated circuits, and electrical spacings within the devices are not specified.1.3 The devices covered by these requirements are entirely electronic in nature and have no means for manual operation or reset.1.4 The terminals of the devices covered by these requirements are for factory wiring only (intended to be mounted on a printed wiring board).1.5 The devices covered by these requirements shall only be used on supply circuits originating from an isolating transformer, a power supply or a battery with limited maximum current and power levels as noted in Table 1.1. Use on supply circuits with a higher power capability requires additional evaluation for reliability, such as those requirements contained in the Standard for Safety-Related Controls Employing Solid-State Controls, UL 991.1.6 The devices covered by these requirements limit output currents to values less than the overcurrent protection rating of 5 amperes.1.7 The devices covered by these requirements have only been evaluated for supplementary overcurrent protection of secondary circuits supplied by the load side of a transformer, power supply or battery and have not been evaluated for branch-circuit protection.1.8 This standard may cover devices intended for use in telecommunications applications. However, devices intended for connection to telecommunications networks with outside plant connections should be evaluated in the end-use in accordance with the requirements of the Standard for Information Technology Equipment Safety - Part 1: General Requirements, UL 60950-1, or the Standard for Secondary Protectors for Communication Circuits, UL 497A, as appropriate.