User Manual

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Thermal Solutions Design Guide | Specifications subject to change
Silicone Rubber Wire-Wound Heaters
Uniform heating to 220°C
Overview
• These silicone rubber heaters have a wire-
wound element and are economical in large
sizes.
• Mean time between failure (MTBF) of 100,000
hours+
provides longer heater life under continuous
operation
• Rugged construction and high ductility allows
repeated
flexing for easier installation
• Element wires sealed inside silicone rubber
protects electrical connections from moisture preventing
costly downtime for field repairs
• Uniform heating to 220°C (428°F) 235°C (220 for UL)
• Heater lengths to 90” (1.8 m)
• Mount to flat or curved surfaces
• 2.5, 5, 10, 15 watts/in² (0.39, 0.78,1.55, 2.33 watts/cm²)
at 120 or 240 VAC
• Lower leakage current due to reduce capacitive coupling
Typical Applications
• Prevent condensation in motors and generators
• Protect instrument cabinets from cold and humidity
• De-icing
• Control fluid viscosity in valves and vessels
• Industrial ovens and thermal processing equipment
• Platens
• Medical devices
Options
• Shapes and sizes to 22” × 90” (560 × 2285 mm)
• Resistance to 150 Ω/in²
• TÜV and UL component recognition marking are available
• Heaters can include thermostats, temperature sensors and
cutouts, wiring harnesses, and connectors
• RoHS compliance
Specifications
• Temperature range: -45 to 235°C (-50 to 455°F).
With UL component recognition: -45 to 220°C
(-50 to 428°F).
• Overall Thickness: 0.055” ±0.005” (1.4 ±0.13 mm).
0.250” (6.4 mm) maximum over leadwires.
• Maximum voltage rating: UL rating is 600 VAC, TÜV
recognition up to 250 VAC.
• Leadwires: AWG 20 except where noted, PTFE insulated
per UL 1199/CSA. Length on standard models is 12”
(305 mm).
• Current capacity (based on 100°C max. ambient temp.):
AWG 20 - 13.5 A
AWG 18 - 16.0 A
• Approvals: Can be configured to comply with UL
Standard 499 and Canadian Standard C22.2, No. 72-M1984
and European Standard EN60335 and may bear the
corresponding recognition marks.
• Wattage tolerance: ±5%.