Electric Heaters and Elements > Strip Heaters > Finned Channel Strip Heaters

Finned 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. The nickel-plated steel fins (SS optional) are mainly used for both forced air in a duct and natural convection air heating in a cabinet type oven.

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Construction Styles

Finned Channel Strip Heater with Mounting Tabs

Heaters are designed with Nickel-plated steel fins that are mounted to the rectangular tubing (Stainless Steel fins are optional) and mounting tabs.

Electrical Terminations

Type T1: Screw Terminals at each end

10-32 Screw Terminals at each end

Type T2: Screw Terminals at one end

10-32 Screw Terminals (Tandem) at one end

Type T3: Screw Terminals at one end

10-32 Screw Terminals (Parallel) at one end

Type T4: Screw Terminals at one end

10-32 Screw Terminals offset (Diagonal) at one end

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Request Other Electrical Termination

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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

Power Variations

Type DW: Distributed Wattage

Channel strip and finned channel strip heaters can be designed to vary the wattage along the length of the heater. Specify number of zones and the required watts and length per zone. Shown with T4 termination.

Type 3PH: Three Phase

In order to minimize the gauge of the wiring on high wattage channel strip and finned channel strip heaters, 3-phase elements can be designed.

Type DV_: Dual Voltage (1 and 2)

Channel strip and finned channel strip heaters can be designed using 3-wire series/parallel circuits for dual vltage applications. Whether the heater is run on the high or low voltage, the wattage will be the same.

DV1: 120/240 volts

DV2: 240/480 volts

Type DWV: Dual Circuits

Independent resistance elements can be designed in a single channel strip or finned channel strip heater for added versatility.

Type GL: Ground Lead/Sheath

For those applications requiring a separate ground lead attached to the channel strip or finned channgel strip heater sheath.

Additional Options

Secondary Insulating Bushings

Used to mount finned strip heaters in air heating applications. Also can be used when it is necessary to electrically isolate the heater from ground. When Insulating Bushings are required, a 1/2″ × 5/8″ slot is substituted for the standard slot size (5/16″ × 1/2″). Insulating Bushing Assembly Part Number: CERR-1001

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Stainless Steel Sheath

For corrosive atmospheres and/or sheath temperatures up to 1200°F (650°C), stainless steel sheath is available.

Agency Approvals (if required)

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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.

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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.