Description Space Saving-Typical 3-Pole Class T Fuse Blocks Require Less Than 50 Percent of the Panel Area Required for Class R Fuse Blocks; Reliable Interruption of All Overcurrents; Extremely Current Limiting-Stops Damaging Short Circuit Current Faster than Any Mechanical Protective Device; Fast Acting-Provides Fast-Acting Overload Protection to Equipment Such as Variable Speed Drives, Rectifiers and Other Equipment Containing Surge-Sensitive Components; Current Limiting Design Greatly Reduces Damage to Equipment Caused by Heating and Magnetic Effects of Short Circuit Currents Specifications: Type: Class T Characteristics: Fast Acting Voltage Rating: 300 VAC/125 VDC Current Rating: 150 Ampere Interrupting Rating: 200000 Ampere (Symmetrical), 20000 Ampere (DC) Terminal Type: Blade Diameter: 1.062 Inch Length: 2.437 Inch Approval: UL 248-15, CSA, CE