Watlow Electric Electric Heater Mica Strip Heater User Manual

M I C A  
S T R I P  
H E A T E R S  
Economical and  
Reliable Source for  
Industrial  
Equipment  
The Watlow mica strip heater is an economical and reliable  
source of heat for industrial equipment. A mere 15 mils  
(0.4 mm) thick mica insulator on both sides of the resistance  
element provides complete electrical insulation and offers little  
resistance to efficient heat flow. Plus mica withstands high voltage  
spikes, resists moisture and is inert to most chemicals. UL®  
component recognition is available for applications to 900˚F  
(480˚C) sheath temperature, file number E52951.  
Features and Benefits  
Low mass construction  
• Heats up fast to provide quick response to control input  
Flat resistance ribbon  
• Heat is generated over a broad area; this design solution  
puts the heat source closer to the work  
Rust-resistant, zinc-coated steel sheath  
• Material gives the heater rigidity and improves emissivity  
Performance Capabilities  
• Sheath temperatures to 900˚F (480˚C) on zinc-coated units  
• Sheath temperatures of 1200˚F (650˚C) on stainless steel units  
• Watt densities to 55 W/in2 (8.5 W/cm2)  
Optional stainless steel sheath  
• Available for more corrosive atmosphere  
• Maximum voltage 480VÅ(ac)  
Nickel-plated steel terminal posts  
• Posts are securely riveted to ensure a positive,trouble-free  
connection to the resistance circuit  
Applications  
• Vulcanizing presses  
• Sealing equipment  
• Hot plates  
• Hot stamping  
• Dies and molds  
Thermoforming  
Tin melting  
Packaging equipment  
Food warming equipment  
Computer-aided design engineering  
• Design combination of ribbon gauge, total wattage and  
winding spacing maximizes heat transfer and life of the  
heater  
Excellent dielectric strength guaranteed  
• All incoming mica receives a quality control inspection  
12001 Lackland Road  
St. Louis, Missouri 63146 USA  
Phone: (314) 878-4600  
FAX: (314) 878-6814  
e-mail: info@watlow.com  
UL® is a registered trademark of Underwriter’s Laboratories, Inc.  
© 2001 Watlow Electric Manufacturing Company  
FAX-1901-1100  
 

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