Tempco Channel Strip Heaters
Type 304 Stainless Steel sheath provides physical strength and resistance to high temperatures of up to 1200°F (650°C) and chemical corrosion. Helically wound resistance wire coil made from nickel-chrome wire is evenly stretched and precisely strung through the ceramic insulator, providing uniform heat. A custom mixture of several high purity magnesium oxide grain sizes, chosen to increase thermal conductivity and dielectric strength, are used to fill all remaining space inside and around the ceramic insulator. Channel strip heaters are available with or without mounting tabs. If without, the ends are silver soldered shut to prevent moisture and contaminants from entering the heater.
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Construction Styles
Channel Strip Heater With Mounting Tabs
Heaters are available with mounting tabs. When supported by mounting tabs, the terminal end should be secured firmly. Opposite end should be loose to allow for thermal expansion.
Mounting Slot Size
Standard 5/16″ × 1/2″
Special Bushings 1/2″ × 5/8″
Channel Strip Heater Without Mounting Tabs
Heaters without mounting tabs have ends that are silver soldered shut to prevent moisture and contaminants from entering the heater.
For surface mounting installations, Channel Strip heaters must be securely clamped along their entire length to a smooth metal surface.
Electrical Terminations
Type L1: Flexible Lead Wires at Top
Flexible lead wires exit from top of heater. 10″ long leads standard; if longer leads are required, specify.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Type L1: Flexible Lead Wires at Top with Mounting Tabs
Flexible lead wires exit from top of heater. 10″ long leads standard; if longer leads are required, specify.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Type L: Flexible Lead Wires at Heater End
Flexible lead wires exit from end of heater. 10″ long leads standard; if longer leads are required, specify. Recommended only for tight quarters or where flexibility of the lead wire is required.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Type R1: Armor Cable at Top
Armor cable provides strength and prevents contamination from getting into the heater. 10″ of armor over 12″ long leads are standard; if longer leads or armor are required, please specify.
Maximum Amps: 10 at 240VA
Maximum Volts: 480
Type R1: Armor Cable at Top with Mounting Tabs
Armor cable provides strength and prevents contamination from getting into the heater. 10″ of armor over 12″ long leads are standard; if longer leads or armor are required, please specify.
Maximum Amps: 10 at 240VA
Maximum Volts: 480
Type R2: Right-Angle Armor Cable at Top
Right-angle armor cable prevents contamination from getting into the heater. 10″ of armor over 12″ long leads is standard; if longer leads or armor are required, please specify.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Type R2: Right-Angle Armor Cable at Top with Mounting Tabs
Right-angle armor cable prevents contamination from getting into the heater. 10″ of armor over 12″ long leads is standard; if longer leads or armor are required, please specify.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Type T1: Screw Terminals at each end
10-32 Screw Terminals at each end
Type T1: Screw Terminals at each end with Mounting Tabs
10-32 Screw Terminals at each end
Type T2: Screw Terminals at one end
10-32 Screw Terminals (Tandem) at one end
Type T2: Screw Terminals at one end with Mounting Tabs
10-32 Screw Terminals (Tandem) at one end
Type T3: Screw Terminals at one end
10-32 Screw Terminals (Parallel) at one end
Type T3: Screw Terminals at one end with Mounting Tabs
10-32 Screw Terminals (Parallel) at one end
Type T4: Screw Terminals at one end
10-32 Screw Terminals offset (Diagonal) at one end
Type T4: Screw Terminals at one end with Mounting Tabs
10-32 Screw Terminals offset (Diagonal) at one end
Type W1: Wire Braid at Top
Wire braid provides strength and protection to the lead wire insulation, offering sharp bending not possible with armor cable. 10″ of wire braid over 12″ long leads is standard; if longer leads or braid are required, specify.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Type W1: Wire Braid at Top with Mounting Tabs
Wire braid provides strength and protection to the lead wire insulation, offering sharp bending not possible with armor cable. 10″ of wire braid over 12″ long leads is standard; if longer leads or braid are required, specify.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Type W2: Wire Braid at Heater End
Stainless steel braid over each lead wire offers sharp bending not possible with armor cable, as well as abrasion protection. 10″ long leads standard; if longer leads are required, specify. Not available on heaters with tabs.
Maximum Amps: 10 at 240VAC
Maximum Volts: 480
Termination Options
Igloo Ceramic Covers with Mounting Tabs
Igloo Ceramic terminal covers consist of two individual ceramic parts. With a tight-fitting cap and a solid base, an Igloo cover will fully insulate any standard 10-32 terminal lug used for electrical wiring hookups. Igloo covers can be assembled on all Channel Strip heaters with Type T1 and Type T4 screw terminals.
Three different types of Igloo bases are available for your wiring convenience. Double Port In-Line, Double Port 90° and Single Port. When ordering, specify the type of Igloo.
Type C: Terminal Box (General Purpose) with Mounting Tabs
Terminal box has a 1/2″ trade size knockout (actual diameter 7/8″). Box provides excellent protection to exposed terminals. If armor-protected lead wires are required, specify armor and lead length.
Type P: Quick Disconnect Plugs with Mounting Tabs
High-Temperature Quick Disconnect Plug. If armor protected lead wires are required, specify armor and lead length.
Maximum Amps: 10 at 240VA
Maximum Volts: 250
Igloo Ceramic Covers
Igloo Ceramic terminal covers consist of two individual ceramic parts. With a tight-fitting cap and a solid base, an Igloo cover will fully insulate any standard 10-32 terminal lug used for electrical wiring hookups. Igloo covers can be assembled on all Channel Strip heaters with Type T1 and Type T4 screw terminals.
Three different types of Igloo bases are available for your wiring convenience. Double Port In-Line, Double Port 90° and Single Port. When ordering, specify the type of Igloo.
Type C: Terminal Box (General Purpose)
Terminal box has a 1/2″ trade size knockout (actual diameter 7/8″). Box provides excellent protection to exposed terminals. If armor-protected lead wires are required, specify armor and lead length.
Type MP: Welded Terminal Box
Specially designed box is welded to the Channel Strip Heater and potted with epoxy. The ends of the heater are also welded. Leads exit through a 1/2″ NPT nut that can be located at the top or in the front of the box. Armor cable can be supplied with the male fitting, providing a completely sealed Channel Strip. Available on 11⁄2″ wide heaters only.
10″ long leads standard; if longer leads are required, specify.
Maximum Amps: 25
Maximum Volts: 480
Type P: Quick Disconnect Plugs
High-Temperature Quick Disconnect Plug. If armor protected lead wires are required, specify armor and lead length.
Maximum Amps: 10 at 240VA
Maximum Volts: 250
Request Other Termination Option
If your filter selections do not return your desired results from our standard configurations, please continue to select your Specifications.
When you are finished, save your selections in the Wish List (using the button at the right of this page) and follow the steps to submit them to Tempco.
Agency Approvals (if required)
CSA Standard
Channel Strip and Finned Channel Strip Heaters have been certified as Recognized Components by Underwriters Laboratories (File Number E65652) under CCN KSOT2/8 to meet UL standard 499.
This file specifies the end use limitations and conditions of acceptability for the use of this type of heater. For additional information consult Tempco.
Mica Strip heaters are UL recognized and CSA certified in many design variations.
Tempco’s UL file number is E65652 and CSA file number is 043099.
UL Standard
Channel Strip and Finned Channel Strip Heaters have been certified as Recognized Components by Underwriters Laboratories (File Number E65652) under CCN KSOT2/8 to meet UL standard 499.
This file specifies the end use limitations and conditions of acceptability for the use of this type of heater. For additional information consult Tempco.
Mica Strip heaters are UL recognized and CSA certified in many design variations.
Tempco’s UL file number is E65652 and CSA file number is 043099.