PM554-TP-ETH工控模块机器人备件
不应超过列出的电压和电流范围。电路频率公告1489-M断路器可应用于50 Hz和60 Hz的频率，无需降额。对于60 Hz以上的应用，请联系罗克韦尔自动化公司，了解断路器降额的具体应用信息。可用短路电流公告1489-M断路器仅适用于可用短路（或故障）电流小于或等于10 kA（美国/加拿大）和15 kA（IEC）的应用。应用注意事项跳闸特性跳闸曲线特性如下页所示。每个断路器显示的跳闸带代表断路器的电流跳闸限值，且在UL规定的限值范围内。公告1489-M的标准跳闸特性为C型。C型具有在断路器额定电流的5-10倍时激活的磁跳闸。热跳闸特性的参考温度为30°C。C型特性适用于大多数应用。当C型特性不完全满足应用时，D型磁跳闸特性可用，允许瞬变大约是标准C型的两倍。对于30°C下的特定电流，断路器将在曲线所示的最小和最大时间内的某个总时间内自动打开（“清除电路”）。例如，一个单极、15 a、公告1489-M断路器在30 a电流下，在不少于1秒且不超过200秒内跳闸。因为UL标准定义了这个时间范围，所以用户不应该指定准确的跳闸时间。曲线的下电流部分（左上）描述了由于热作用而跳闸的时间，并反映了电线和连接负载的过载保护。曲线的较高电流部分（右下）描述了由于断路器的磁性作用而引起的跳闸，并反映了由于短路电流而引起的保护。以下是与北美应用相关的应用注意事项的讨论。当将产品应用于IEC区域要求时，请遵循IEC实践和指南。特定应用的特定安培额定值的选择取决于负载类型和占空比，并受国家电气规范（加拿大电气规范）和UL/CSA的管辖。一般来说，这些规范要求在电流供应处和电线尺寸减小的地方提供过电流保护。此外，规范规定，导体应根据其载流能力进行保护。有些特定情况需要考虑应用，例如电机电路和
should not exceed the listed voltage and current range. Circuit Frequency The Bulletin 1489-M circuit breakers may be applied to frequencies of 50 Hz and 60 Hz without derating. For applications above 60 Hz, contact Rockwell Automation with specific application information for the derating of the circuit breakers. Available Short Circuit Current The Bulletin 1489-M circuit breakers should only be applied in those applications in which the available short-circuit (or fault) current is less than or equal to 10 kA (US/Canada) and 15 kA (IEC). Application Considerations Tripping Characteristics The trip curve characteristics are shown on the following pages. The trip bands shown for each breaker represent current tripping limits for a circuit breaker and are within the limits established by UL. The standard tripping characteristic for Bulletin 1489-M is Type C. Type C has a magnetic trip activated at 5-10 times the rated current of the circuit breaker. The reference temperature for the thermal tripping characteristics is 30 °C. The Type C characteristic will suit most applications. In rare occurrences when the Type C characteristic does not fully meet the application, Type D magnetic trip characteristic is available, allowing for transients approximately twice as high as the standard Type C. For a specific current at 30 °C, a circuit breaker will open ("clear the circuit") automatically at some total time that will be within the minimum and maximum time shown on the curves. For example, a one-pole, 15 A, Bulletin 1489-M circuit breaker trips in not less than 1 s and not more than 200 s on a 30 A current. Because the UL standard defines this time spread, users should not specify exact tripping time. The lower current portion of the curves (upper left) depicts the time to trip due to thermal action and reflect overload protection of the wire and connect load. The higher current portion of the curves (lower right) depicts the trip due to magnetic action of the circuit breaker and reflects protection due to short circuit level currents. The following is a discussion of application considerations related to North American applications. When applying product to IEC regional requirements, follow IEC practices and guidelines. The selection of a specific ampere rating for a specific application is dependent on the type of load and duty cycle and is governed by the National Electrical Code (Canadian Electrical Code) and UL/CSA. In general, the codes require that overcurrent protection is at the current supply and at points where wire sizes are reduced. In addition, the codes state that conductors be protected according to their current carrying capacity. There are specific situations that require application consideration, such as motor circuit, and guidelines for the
