Bussmann 170M4064 High Speed Square Body Fuse, Class aR, 500AThe Bussmann 170M4064 is an Eaton Bussmann series high speed square body fuse engineered for semiconductor protection in demanding power electronics circuits. Rated 500A with a voltage rating of 1250V (IEC) and 1300V (UL), this Class aR fuse delivers a 200 kAIC interrupting rating along with a 690 V continuous AC voltage rating for reliable performance in industrial power systems. Built to DIN 43 620 dimensional standards with blade end X blade end connections and a top fuse status indicator, the 170M4064 is designed for fast, dependable clearing of high fault currents in accompanied semiconductor protection applications.Key FeaturesAmperage & Voltage Rating: 500A fuse rated 1250V (IEC) / 1300V (UL), with a 690 V AC continuous voltage rating for demanding power electronics circuits.Interrupting Capacity: 200 kAIC interrupting rating delivers robust short-circuit protection for high-fault-current applications.Class aR Utilization Category: Designed for accompanied semiconductor protection, working alongside other overcurrent devices to protect power semiconductors.Square Body Construction: Square body fuse shape with slotted center bolted tags and blade end X blade end connections, built to DIN 43 620 dimensional standards.Top Fuse Status Indicator: Integrated top-mounted status indicator provides quick visual confirmation of fuse condition.Fast-Clearing Performance: Pre-arc It rating of 25000 and clearing It of 170000 at 660 V, with a clearing loss of 72, supporting rapid current limitation.Application: Purpose-built for semiconductor protection in power conversion and control equipment.Certifications & ComplianceUL RecognizedCE MarkedTechnical SpecificationsAmperage Rating: 500 AApplication: semiconductor protectionCertifications: UL RecognizedClearing It: 170000 at 660 VClearing Loss: 72Compliances: CE MarkedFuse Shape: Square body, slotted center bolted tagsInsulated Metal Gripping Lugs (IMGL): NoPackaging Type: StandardPre-Arc It: 25000Product Height: 62 mmProduct Length/Depth: 245 mmProduct Weight: 152.3333333 gProduct Width: 142 mmUtilization Category: aR (accompanied semiconductor protection)Voltage Rating: 690 VVoltage Type: ACTypical ApplicationsSemiconductor Device ProtectionPower Electronics and Drive SystemsIndustrial Motor Control and Rectifier CircuitsPanelboard and Switchgear ProtectionWhy Bussmann?Bussmann is a recognized name in circuit protection, and the 170M4064 reflects that standard with UL Recognized and CE Marked compliance backing its 200 kAIC interrupting rating and Class aR construction. For engineers and electricians protecting semiconductor-based equipment, this Eaton Bussmann series high speed square body fuse delivers the fast-clearing, code-compliant performance professional power electronics applications demand.