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Tempco Ceramic Insulated Channel Strip Heaters consist of a helically wound resistance coil evenly strung through specially designed ceramic insulators. The coil is mechanically connected to screw terminals or lead wires for a positive connection. Stainless steel rectangular tubing is used to house the heater assembly. All voids are densely packed with high purity magnesium oxide to increase thermal conductivity and dielectric strength.

The rectangular tube gives full surface contact when used in a milled slot to provide maximum heat transfer area. For surface mounting installations, Channel Strip heaters must be securely clamped along their entire length to a smooth metal surface. See this page for clamping devices. When supported by mounting tabs, the terminal end should be secured firmly. Opposite end should be loose to allow for thermal expansion.

5/8" wide by 1/4" thick Available without mounting tabs only.
1" wide by 5/16" thick Available with or without mounting tabs. When supplied with Type L lead wire termination, mounting tabs are not available.
1-1/2" wide by 5/16" thick Available with or without mounting tabs. When supplied with Type L lead wire termination, mounting tabs are not available.
1-1/2" wide by 3/8" thick Available with or without mounting tabs. When supplied with Type L lead wire termination, mounting tabs are not available.

Performance Ratings

Maximum Sheath Temperature: 1200°F (650°C)
Nominal Watt Density: 20 W/in2 (3.1 W/cm2)

Electrical Ratings

Maximum Voltage: 480VAC (dependent on design parameters)
Maximum Recommended Voltage w/Leads: 240VAC
Maximum Amperage: lead wire termination: 10 amp
screw terminations: 10-32UNF--25 amp
Resistance Tolerance: +10%, -5%
Wattage Tolerance: +5%, -10%

Physical Size Construction Limitations

Width
5/8" wide heaters+.000, -.005"
1" and 1-1/2"wide heaters+.000, -.010"
Thickness
1/4" thick heaters+.000, -.005"
5/16" and 3/8" thick heaters+.000, -.008"
Length
Up to 24"±1/16"
over 24"±1/8"
Mounting Slot Size
Standard5/16" x 1/2"
Special1/2" x 5/8"

	Standard Specifications and Tolerances of Channel Strip Heaters. If tighter tolerances are required, consult Tempco.