Part JLS250 carries a 250A rating within the Littelfuse JLS Series. Its electrical envelope is 600V AC, paired with 200kA AC interruption. The fast-acting, current-limiting design targets surge-sensitive industrial and power-conversion equipment. For installation, the listed format is Class J; mounting is Cartridge \/ Clip, with ferrule \/ blade (amp-dependent) terminals. Published dimensions are 181.0mm overall length; 50.8mm body diameter. Typical applications include Power Electronics, Variable Speed Drives, Rectifiers, Resistive Loads, Solid-State Devices. Check the official Littelfuse datasheet before final coordination.<\/p>\n","protected":false},"excerpt":{"rendered":"
JLS250 is Littelfuse’s 250A selection in the JLS Series. The electrical envelope is 600V AC, supported by 200kA AC breaking capability. The fast-acting, current-limiting design targets surge-sensitive industrial and power-conversion equipment. Use the linked Littelfuse datasheet to confirm coordination, approvals and installation details.<\/p>\n","protected":false},"featured_media":55881,"template":"","product_category":[117],"product_tag":[269,1500,292,5860,5859,5882,4052],"product_brand":[230],"product_voltage":[812],"fuse_speed":[11],"fuse_class":[240],"package_size":[1449],"mounting_type":[30],"product_application":[3766,792,5855,5856,5854],"product_standard":[5271,250],"product_current_type":[75],"product_series":[5857],"product_approval":[33,256,35,488],"product_availability":[501],"class_list":["post-211278","product","type-product","status-publish","has-post-thumbnail","hentry","product_category-class-j-fuses","product_tag-250a","product_tag-600v","product_tag-class-j","product_tag-fast-acting-class-j-current-limiting-fuse","product_tag-jls-series","product_tag-jls250","product_tag-littelfuse","product_brand-littelfuse","product_voltage-600v","fuse_speed-fast-acting-f","fuse_class-class-j","package_size-class-j","mounting_type-cartridge-clip","product_application-power-electronics","product_application-rectifiers","product_application-resistive-loads","product_application-solid-state-devices","product_application-variable-speed-drives","product_standard-federal-specification-wf-1814","product_standard-ul-248-8","product_current_type-ac","product_series-jls-series","product_approval-ce","product_approval-csa","product_approval-rohs","product_approval-ul-listed","product_availability-contact-for-availability"],"_links":{"self":[{"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product\/211278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/media\/55881"}],"wp:attachment":[{"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/media?parent=211278"}],"wp:term":[{"taxonomy":"product_category","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_category?post=211278"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_tag?post=211278"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_brand?post=211278"},{"taxonomy":"product_voltage","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_voltage?post=211278"},{"taxonomy":"fuse_speed","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/fuse_speed?post=211278"},{"taxonomy":"fuse_class","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/fuse_class?post=211278"},{"taxonomy":"package_size","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/package_size?post=211278"},{"taxonomy":"mounting_type","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/mounting_type?post=211278"},{"taxonomy":"product_application","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_application?post=211278"},{"taxonomy":"product_standard","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_standard?post=211278"},{"taxonomy":"product_current_type","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_current_type?post=211278"},{"taxonomy":"product_series","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_series?post=211278"},{"taxonomy":"product_approval","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_approval?post=211278"},{"taxonomy":"product_availability","embeddable":true,"href":"https:\/\/fusestock.com\/es\/wp-json\/wp\/v2\/product_availability?post=211278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}