【选型】圆筒保险丝CA433系列,最高额定电流30A,最大电压1000V,是工业电源输入保险丝国产化最佳选择
工业电源输入电压一般在AC380V-690V,其输入的保险丝选型时一般需要选高达1000V耐压的保险丝。目前1000VAC的高压保险丝多以进口为主,在目前国产化的需求下,电安科技推出的CA433系列高压大电流管状保险丝,解决了工业电源输入保险丝国产化的问题。
如图1所示,是一个工业电源的原理框图,也是一个典型的ACDC电源电路拓扑,其输入一般为交流三相电输入,经过三相整流后再IGBT逆变整流输出。ACDC工业电源输入的每相电需要串联一个保险丝,当后级比如三相整流或者IGBT出现直通短路等情况时,保险丝可以及时断开,防止产生二次损坏造成更大的损失。由于是在输入端,保险丝时刻面临雷击、开机瞬间等突发现象,因此所承受的瞬间峰值能量比较大,此时要求保险丝具备较高的分断能力。
图1 典型的三相电输入工业电源的原理框图
考虑以上选型需求,加上现在国产化的要求,电安科技推出了CA433系列高压大电流管状保险丝,其应用优势如下:
1、耐压高,同时覆盖范围广,耐压范围覆盖了500V/600V/660V/1000V AC/DC的产品,满足大部分工业输入的耐压需求。以输入AC380V的ACDC工业电源模块为例,选择电压500VAC等级的CA433 V3系列的保险丝,即可满足耐压等级要求;
2、额定电流大,最大高达30A,可满足10KW左右的电源的输入防护需求。以12KW的三相AC380V输入工业ACDC电源模块为例,其相电流计算I=P/(U*1.732)=12000/(380*1.732)=18A,考虑电压波动选择20A的保险丝,推荐20A保险丝料号CA433A020;
3、工业电源输入时刻面临雷击等各种浪涌冲击的考验,高达30KA的分断能力,大大提高保险丝在复杂的电网环境工作的可靠性;
4、封装采用6mm*32mm带引线和不带引线封装,兼容市场上进口品牌保险丝,可直接替换如Littelfuse的505系列保险丝,国产化器件,性价比和交期好;
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电安科技(DA TECHNOLOGY)圆筒形保险丝选型指南
目录- Cartridge Fuse Overview CA413 Cartridge Fuse CA414 Cartridge Fuse CA421 Cartridge Fuse CA424 Cartridge Fuse CA425 High Voltage Cartridge Fuse CA433 High Voltage Cartridge Fuse CA434 Cartridge Fuse CA435 Cartridge Fuse MF501 Midget Fuse Cartridge Fuse Applications Overview
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保险管Ca433
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The Cartridge fuse CA433 of DA Technology has been successfully applied in the overcurrent protection of the lithium battery formation system
When the overcurrent occurs, the MCU that controls the on and off of the MOS or relay has a software failure and cannot issue a command to open the circuit. The heat generated by the circuit is very likely to cause damage to the circuit of the formation device, or even fire. At this time, it is recommended to put a fuse (such as CA433) in series on the circuit to achieve complete physical disconnection, which can effectively prevent this danger from occurring.
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对照表 - 电安科技
【产品】5X20mm快熔断型玻璃管圆筒形保险丝CA421系列,电压250V、电流0.2A到20A
电安科技推出的CA421系列玻璃管圆筒形保险丝,采用5X20mm小封装,符合RoHS和无铅环保认证,是一款小型快熔断型玻璃管圆筒形保险丝。CA421系列玻璃管圆筒形保险丝有多种参数规格可选,性价比高,为产品提供安全可靠的保护。CA421系列玻璃管圆筒形保险丝工作温度范围为-50°C to 125°C ,可选择的电流范围0.2A-20A,最大额定电压为250VAC。
【应用】30A/500VAC陶瓷管状插件保险丝用于30KW充电桩模块,分断能力高达30KA
电安的西北某客户30KW充电桩模块上,考虑到电压波动下限和保险丝工作环境温度等方面的余量,需要选6x32mm,72A左右,500Vac的陶瓷管保险丝。综合考虑选择了CA433A030PV3(30A 500Vac 带引线封装),在每相线上各并了3个。
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描述- 本资料介绍了高压卡式熔断器CA433A040P50V3的特性、应用领域和相关技术规格。该产品符合RoHS标准,具有无铅和无卤素的特点,适用于电动汽车(EV)、充电桩(EV Charging Pile)和不间断电源(UPS)等领域。
型号- CA433A040P50V3
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