Bussmann 170M6237 Eaton Series 800A High Speed Square Body Fuse, Class aRThe Bussmann 170M6237 is an Eaton Bussmann series high speed square body fuse engineered for demanding semiconductor protection applications. Rated 800A with a voltage rating of 700V (UL) / 690V (IEC) and a listed voltage rating of 1250V AC, this fuse carries a Class aR utilization category for accompanied semiconductor protection. Its square body design with slotted center bolted tags delivers a secure, low-resistance connection for power electronics, drive systems, and industrial converter circuits.Key FeaturesAmperage & Voltage Rating: 800A fuse rated 700V (UL) / 690V (IEC), with a listed voltage rating of 1250V AC for high-power circuit protection.High Speed Fuse Design: Eaton Bussmann series high speed construction delivers fast-acting current-limiting response in demanding power electronics applications.Class aR Semiconductor Protection: Utilization category aR (accompanied semiconductor protection) is purpose-built for semiconductor protection duty.Square Body Construction: Square body fuse shape with slotted center bolted tags provides a secure, low-resistance connection point.Compact Footprint: Measures 168 mm (length/depth) x 95 mm (width) x 76 mm (height) with a weight of 915 g.Standard Packaging: Supplied in standard packaging type for straightforward stocking and handling.Gripping Lug Configuration: Does not include insulated metal gripping lugs (IMGL), per manufacturer specification.Technical SpecificationsAmperage Rating: 800 AApplication: semiconductor protectionCompliances: Contact factoryFuse Shape: Square body, slotted center bolted tagsInsulated Metal Gripping Lugs (IMGL): NoPackaging Type: StandardProduct Height: 76 mmProduct Length/Depth: 168 mmProduct Weight: 915 gProduct Width: 95 mmUtilization Category: aR (accompanied semiconductor protection)Voltage Rating: 1250 VVoltage Type: ACTypical ApplicationsSemiconductor Device Protection (Rectifiers, Thyristors, IGBTs)Power Electronics and Variable Frequency Drive SystemsIndustrial Motor Drives and AC/DC ConvertersAC Power Distribution Requiring Accompanied Semiconductor ProtectionHigh-Speed Circuit Protection in Industrial EquipmentWhy Bussmann?Eaton Bussmann series fuses are engineered for the demanding current-limiting performance that semiconductor protection requires, and the 170M6237 carries that same high speed, Class aR design philosophy into an 800A square body package. With its bolted tag connection and defined 700V (UL) / 690V (IEC) / 1250V AC ratings, this fuse is built for reliable, code-compliant performance in industrial power electronics and drive applications.