Insulated Channel Strip Heater Voltage 240V Overall Length 4 In. Mounting Dimension 3-3/8 In. Element Width 3 In. 120 Watts Watt Density 19W/sq. in. Terminals Tandem at One End Sheath Material Rust Resistant Coated Steel Material Mica 1 Phase Max Sheath Temp 900 Degrees F Slotted Hole Length 9/32 In. Slotted Hole Width 3/8 In. Screw Size 10-32 Standards UL Recognized