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Enclosure Heaters-Silicone Rubber & Metal Sheath Enclosure Heaters

Silicone Enclosure Heater Electrical Panel Silicone Enclosure Heaters
Silicone Rubber Enclosure Heaters with Thermostat   Silicone Rubber Electrical Panel Heaters


NPH silicone rubber enclosure heaters are designed for easy installation and safe operation. These rectangular-shaped wire wound silicone rubber heaters are vulcanized to an aluminum mounting plate with mounting holes. They provide superior protection for enclosures of all types against condensation, humidity and freezing. It is recommended that the enclosure heaters be used with a thermostat either built-in or mounted remotely to limit the maximum temperature reached and conserve energy.

A wire wound silicone rubber heater with ambient sensing thermostat and aluminum mounting plate are designed to prevent humidity and moisture accumulation in electrical and mechanical enclosures. Enclosure heaters can be supplied with thermostat separate from heater or without mounting plate.

With built-in ambient sensing thermostat, the minimum width is 2". Available lengths are from 5" to 40" at 5 watts/square inch. Aluminum mounting plate is 1/2" wider than heater. Mounting slots are conveniently located. The suggested mounting is vertical with the thermostat at the bottom as shown.

Available thermostat setting is 40°F (4°C) 40°/55°F (4°C/13°C). Consult NPH for other settings available. Minimum quantity may apply.
Silicone Rubber Enclosure Heaters- Wire WoundUsing evenly spaced resistance wires laminated between sheets of silicone, wire wound silicone rubber heater mats are ideal for prototyping or problem solving applications. Manufactured to customer specifications they can be made in a limitless range of shapes and sizes. High flexibility can be obtained using tough, robust silicone materials which are finding ever increasing applications in the industry. Silicone's wide temperature range, tolerance of -60 to +230 °C and superb electrical properties give it a distinct advantage over other forms of heating.

Silicone rubber heaters are extremely versatile and operate efficiently in many environments.  Some distinct advantages of silicone rubber heaters are:
  •   Moisture resistance,
  •   Oil and solvent resistance,
  •   Chemical resistance,
  •   Outdoor exposure ,
  •   Extremely thin profiles,
  •   Conform to almost any shape.

All silicone rubber heaters are built to order, but rush delivery is available. In most cases, NPH can deliver custom silicone rubber heaters within 48-96 hours. All NPH flexible heaters are available with custom design modification. Custom designs are welcome. Please contact us with your requirements.

Silicone Flexible Heaters - The particular application conditions of aerospace, medical, composite fabrication, optical equipment and computers often require flexible heating elements. NPH offers a wide assortment of in-stock and custom flexible heaters in Kapton® and silicone rubber materials to suit most any of these needs. Silicone Rubber heaters permit composite bonding and curing, as well as repair and fabrication operations. Equal length circuits and a cool tab are provided, while a fiberglass reinforced heater cover means long service life and increased durability. Standard watt density is 5W/in2 (0.8W/cm2). All standard heaters are UL Recognized. Many sizes in stock from 6" x 6" to 20" x 20" (152.4 mm x 152.4 mm to .508 m x .508 m).
Enclosure Heaters-Panel Heaters both Metal & Silicone Heaters

Metal Sheath Enclosure Heaters-Tubular and Ceramic Styles

Finned Panel/Enclosure Heaters

Finned Strip/Channel Enclosure Heater

Tubular Enclosure Heaters:
This construction uses tubular heaters-Incoloy, stainless steel and titanium sheaths are available
Finned Channel Strip Enclosure Heaters:
The finned strip heater construction uses a ceramic/mineral insulated strip/channel heater that is lined with fins for faster and more efficient heat transfer
Edison Screw In Ceramic Cabinet Enclosure Heaters:
Enclosre Heater with Ceramic Screw Base Sgrew In Bulb

Metal Enclosure Heater-With Ceramic Base Screw In Bulb

Edison Base Ceramic Screw In Bulb

Ceramic Edison Base Screw-In Bulb

This Edison Screw-In Bulb Style E-Mitter® is a hollow tube-shaped ceramic heater. The heater's unique 360° radiating pattern makes it ideal for use as an enclosure heater. The unique thin wall construction and geometrical shape of the EHC style heater facilitates very fast heating and cooling rates.

Silicone Rubber And Metal Sheath Enclosure Heaters: Specifications, Manuals, Technical Letters & Tips:

  •  Heating of Electronic Components- ATM's and Photocopiers
  •  Heating of Control Panels
  •  Heating of Electrical and Mechanical Enclosures
  •  Automated Teller Machines
  •  Switch Gear
  •  Clothing Lockers
  •  Control Valve Housings
  •  Traffic Signal Control Boxes
National Plastic Heater supplies silicone rubber heaters for many different applications such as industrial catering, battery warming, environmental control or electronics (particularly telecommunications), laboratory equipment and anti-condensation. The uses for polyimide heaters are infinite as they can suit any application requiring surface heating up to 200°C. Their suitability for arduous conditions has been proven in applications from polar expedition to space exploration.
NPH silicone rubber heaters can be supplied with factory fitted sensors and switches to suit all types of instrumentation. Available from stock are PT100's, J, K and T type thermocouples, bi-metal thermostats and thermal fuses. We also fit customer specified thermistors and other resistance temperature devices as well as extruded pockets for customers to fit their own sensors. Separate mechanical or digital thermostats can be supplied for process control.

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How To Order Silicone Rubber Enclosure Heaters
  1. Specify length and width
  2. Specify watts and Volts
  3. Specify type of temperature control required-Thermocouple, RTD, Pre-Set T-stat etc
  4. Specify with or without sticky back (PSA-pressure sensitive adhesive)
  5. Specify holes, notches, cutouts etc.
  6. Provide drawing and or image or sample when required
  7. Specify length of leads
  8. Specify type of application and its parameters
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We Ship Our Kapton & Process Heaters To OEM’s & Industry World Wide

Inquiries & Technical Support

Telephone: 905-859-8225 Facsimile: 905-859-4691

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Toll Free: 1-877-674-9744