【应用】Littelfuse的延时熔断保险丝用于大功率工程热水器电源输入过流防护设计,满足欧美安规认证要求
为避免大功率工程热水器因负载短路异常造成燃烧甚至爆炸风险,一般需要在电源输入加入一颗延时熔断、高分断电流能力保险丝做过流保护设计,电源输入一般为220Vac,以1.5倍过压考量,建议选择330Vac以上;最大额定输入电流一般在40A,以1.5倍过流考量,建议选择额定工作电流为60A的保险丝,同时,为满足欧美出口需求,还需要通过UL、CE等安规认证。
针对如上的设计需求,推荐选择LITTELFUSE(力特)紧凑型SLC系列G类保险丝0SLC060.T,标准额定电压480Vac,额定工作电流60A,分断电流能力高达100kA,通过CE(欧洲)、UL(美国)、CSA(加拿大)等安规认证,满足欧美出口需求,设计选型时,需要搭配LFG系列G类保险丝盒,型号为LFG480603CDINR(可放置3颗保险丝),相关参数及实物图参考如下图1所示。
图1:Littelfuse(力特)LFG系列G类保险丝盒LFG480603CDINR实物图及相关参数
推荐Littelfuse(力特)紧凑型SLC系列G类保险0SLC060.T理由如下:
1、 通过CE、UL、CSA等安规认证,满足欧美出口需求;
2、 分断电流能力达100kA,提供高安全的过流防护能力;
3、 搭配G类保险丝盒(LFG480603CDINR)采用DIN导轨安装,通用安装孔使更换更容易;
4、 市面上有成熟的应用,产品性能得到验证,可靠性高;
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器件选型 发布时间 : 2023-01-05
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