Model No. STH-511-20-SS: 500W @ 120V 1-1/2" Wide X 19-1/2" Length Stainless Steel Channel Strip Heater With Mounting Tabs and (2) #10-32 or #10-24 Screw Terminals Offset (Diagonal) At One End

. Therm Coil Drawing Number: 394A-2001-028 Model Number: STH-511-20-SS Product Description Channel heaters are most commonly used in the surface heating of tanks and in industrial ovens as the heat source via flat-surface mounting and have hundreds of commercial and industrial applications. Channel heaters are a heavy-duty type of strip heater and differ from regular strip heaters in that their housing is constructed from a singular piece of rectangular tubing which makes them moisture-resistant. Whenever the voltage to ground exceeds 300V, secondary insulators must be used. All strip heaters may be used at voltages lower than rated for reduced wattage. NOTE: For Units With Mounting Tabs: When supported by mounting tabs, the terminal end should be secured firmly. The opposite end should be loose to allow for thermal expansion. Model STH-511-20-SS Specifications: Rating: 500W @ 120V Total Length: 19-1/2" (A) DIM. On Diagram Width: 1-1/2" Mounting Tabs With Mounting Holes Center-to-Center: 18-1/2" (B) DIM. On Diagram 304 Stainless Steel Sheath: Superior corrosion protection for long life and clean appearance. Suitable for applications where the sheath temperature does not exceed 1200°F MAX. Moisture-Resistant Housing: this channel heater's housing is comprised of a stainless steel rectangular tubing and is moisture-resistant. Mounting Tabs (2x) At One End & Offset (Diagonal) Positioning: #10-32 or #10-24 Screw Terminals Model STH-511-20-SS Specific Cross-References Chromalox: OT-1905 (120V), OT1905 (120V), 129875 Tempco: CSH00100 Vulcan: OS1419-500A Watlow: SGA1J19J07 Wellman: SS2301 Disclaimers: Chromalox is a registered trademark of Chromalox Inc. Tempco is a registered trademark of Tempco Electric Heater Corporation. Vulcan is a registered trademark of Vulcan Electric Company. Watlow is a registered trademark of Watlow Electric Manufacturing Company. Wellman is a registered trademark of Precious Technology Group, LLC. Therm Coil MFG. Co. is not affiliated with any of the aforementioned trademark owners, affiliates, manufacturers, or their subsidiaries.