Round Cable

Heating element is embedded in MgO insulation inside a round tube.

Square Cable

Heating element is embedded in MgO insulation inside a square tube. Because of the flat surface, in some applications square cable allows better heat conduction and a faster start-up time.

Rectangular Cable

Heating element is embedded in MgO insulation inside a square tube. Because of the flat surface, in some applications rectangular cable allows better heat conduction and a faster start-up time.

Straight Wire

Tempco-Pak heaters are made from M.I. cable having 2 straight heating element wires insulated from the sheath by high purity MgO.
Available in nominal sheath diameters from 0.040" to 0.375" (1mm to 9.5mm) in 304 stainless steel and Inconel® 600 for Tempco-Pak heaters with straight wire. Optional cold nickel lead spliced to heating element wire is available in 0.125" diameter or larger depending on conductor material.

Straight Wire & Built-In Thermocouple

Tempco-Pak heaters with 0.125" or larger diameter are also made from M.I. cable having 2 straight heating element wires and 2 straight thermocouple wires insulated from the sheath by high purity MgO. Optional cold nickel lead spliced to heating element wire is available in 0.125" diameter or larger depending on conductor material.

Helically Wound Coil

Hi-Density Tempco-Pak heaters are manufactured from sheathed M.I. cable having 2 coiled heating element wires or 2 coiled heating element wires and 2 straight thermocouple wires. The non-heated portion has the largest possible diameter solid nickel cold pins attached to the heating element wires, providing maximum current carrying capacity within the same continuous sheath.
Available in nominal sheath diameters from 0.120" to 0.153" (3.05 mm to 3.9 mm) including 0.125" O.D., 0.132" O.D. and 0.143" O.D.

Type A: Stainless Steel Armor Cable

Type A1 – Rated to 482°F (250°C)
Type A2 – Rated to 450°F (232°C)
Type A3 – Rated to 842°F (450°C)

Flexible SS armor cable protects the leads against abrasion and contamination. Special plugs can be attached to heater leads and thermocouple leads.

Type B: Stainless Steel Overbraid

Type B1 – Rated to 482°F (250°C)
Type B2 – Rated to 450°F (232°C)
Type B3 – Rated to 842°F (450°C)

SS overbraid protects the leads against abrasion and allows more aggressive bending, which is not possible with armor cable.
Special plugs can be attached to heater and thermocouple leads.

Type C: Galvanized Armor Cable

Type C1 – Rated to 482°F (250°C)
Type C2 – Rated to 450°F (232°C)
Type C3 – Rated to 842°F (450°C)

Flexible galvanized armor cable protects the leads against abrasion and contamination. Special plugs can be attached to heater leads and thermocouple leads.

Type M: Plain Leads

Standard
M1 – High temperature cement potting with TGGT (Teflon® tape, fiberglass, Teflon® treated fiberglass overbraid) insulated lead wire for 482°F (250°C) and silicone sealed is standard.
Optional
M2 – High temperature epoxy potting rated 450°F (232°C) for a better moisture seal.
Optional
M3 – High temperature cement potting with MGT (mica tape, Teflon® treated fiberglass overbraid) insulated lead wire for 842°F (450°C) and silicone sealed.

Type S: Fiberglass Sleeve

Type S1 – Rated to 482°F (250°C)
Type S2 – Rated to 450°F (232°C)
Type S3 – Rated to 842°F (450°C)

Fiberglass sleeve protects the leads against abrasion and allows more flexibility of lead wires. Special plugs can be attached to heater and thermocouple leads.

Type J

Built-In Type J Thermocouple

Type K

Built-In Type K Thermocouple

None

No Thermocouple needed