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Tempco's standard leads are 10" long, Teflon® insulated, flexible, stranded, plated copper wire. Stripped: 1/4"
A two-conductor neoprene cord and plug set can be vulcanized to the heater.
Standard Length: 6 ft. (1.83 M), 7 ft. (2.13M), or custom length as specified.
Supplied with standard straight blade ungrounded plug, or grounded plug. 120Vac only.
SJO heavy duty power cord and plug set can be attached to the heaters. Standard Length: 6 ft. (1.83 M), or custom length as specified. Supplied with standard straight blade ungrounded plug, or grounded plug. 120Vac only. (For 240Vac see page 15-15 for optional plugs)
Crimp Connectors: insulated or non-insulated
Used to encase lead exit and optional snap action thermostat.
Shown with SJO cord rated -50°C to 105°C.
Various materials can be put over Teflon® or Silicone Rubber leads to provide mechanical or abrasion protection. The leads exit the heater as a single unit.
For ease of attachment, specify PSA. Installation is simple: just peel off the protective liner and apply. It will adhere to most clean smooth surfaces. Care must be taken when installing to attain a smooth, consistent, uniform bond to achieve maximum results.
Continuous – 300°F (149°C)
Intermittent – 500°F (260°C)
Recommended Watt Density:
Under 5 W/in2 (0.78 W/cm2)
A layer of aluminum foil is vulcanized to the back of the heater for added
heat dissipation prior to the application of PSA.
Flexible heaters can be factory vulcanized to bare or anodized aluminum, Stainless Steel, Marble, or other hard surfaces for permanent attachment and excellent heat transfer.
The uncured silicone rubber heater is placed on the metal part and placed in the vacuum oven where the heater vulcanizes and adheres to the part in one operation. This procedure forms an extremely strong permanent bond with most metals due to the fact that the silicone rubber flows into and fills the micro structure in the surface of the metal. The metal part can be manufactured by Tempco or supplied by the customer. Consult Tempco for other materials including granite.
For a field applied permanent bond, a room temperature and ambient humidity curing silicone rubber adhesive is recommended. Tempco offers two types that will retain physical and electrical properties up to 500°F (260°C).
When using RTV adhesive, cover the heater completely with a thin layer of RTV, position the heater in place, and use a small roller to remove air bubbles, which could cause hot spots and lead to premature failure of the heater.
Tempco has developed the techniques necessary to permanently mount silicone rubber heaters to the outside diameters of pipes and medium size vessels. This technique is particularly useful for heated drums and air or gas heating.
Minimum Diameter: 0.5" (12.7 mm)
Maximum Diameter: 6" (152.4 mm)
Maximum Length: 20" (508.0 mm)
A temperature sensor is not needed for this heater.
Quick cutout on rise to temperature. The contacts will open on rise when the temperature increases to the snap point of the calibrated bimetal disc.
Setpoint (opens): available from 50 to 450°F in 10°F increments (most thermostats close 20 to 30°F below setpoint)
Electrical Ratings: 125 Vac, 15 Amp, 1875W,
250 Vac, 10 Amp, 2500W
Minimum Heater Width: 1.312"
Adjustable thermostats allow the user to dial-in a specific temperature and attain a desired result. The thermostat is enclosed in a molded silicone rubber housing and permanently attached to the heater. The adjustment shaft extends through a pre-formed hole. A high temperature knob is included.
Amps: 12.5A @ 125V, 6.5 A @ 250V
Watts: 1500W @ 120V, 1560W @ 240V
Adjustment Ranges Available:
Some applications may require the heater to be grounded. Due to the fact that the heater sheath is non-conductive, this can only be done artificially. A second layer of insulating material and a conductive grid can be added to the heater. A ground wire is attached to the grid.
A less expensive alternative for setting up a ground wire, especially for the required ground lead of a cordset, is to have a "flying ground lead" (6" long, green) exit the lead patch for attaching to the metal load surface, effectively grounding the process.
Due to the flexibility in circuit design for flexible heaters, heating circuits can be designed to accommodate dual voltage.
On dual voltage heaters, three leads, including a common in a different color, are provided for wiring the heater in series for the higher voltage and parallel for the lower voltage. 120/240 Vac or 240/480 Vac can be specified.
Three-phase circuits can also be designed for large high-current applications.
The alloy used for this heater's resistance wire has a high positive temperature
coefficient of resistance that allows the heater to reduce power as temperature increases. This self-regulating feature is ideal for many low temperature applications. This feature can also be beneficial when a fast start-up time is required before the heater power levels off to normal
See Chart for Ratio of Hot to Cold Resistance of the Heater wire at various wire temperatures.
To increase heater efficiency, silicone sponge rubber insulation can be bonded to the top side of the heater.
Available thicknesses are 1/16", 1/8", 1/4", 3/8" or 1/2".
Thermal Conductive Sponge can be use to transfer heat evenly to various surfaces. Available in 1/8" thickness.
See your Wish List.
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607 North Central Avenue
Wood Dale, IL 60191-1452 USA
Phone: 630.350.2252 Toll Free: 888.268.6396
Fax: 630.350.0232 Email: firstname.lastname@example.org
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