Watlow Electric Mica Strip Heater Fascicule

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.

• 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/in

2

(8.5 W/cm

2

)

• Maximum voltage 480V

Å

(ac)

• Vulcanizing presses

•

Thermoforming

• Sealing equipment

•

Tin melting

• Hot plates

•

Packaging equipment

• Hot stamping

•

Food warming equipment

• Dies and molds

12001 Lackland Road
St. Louis, Missouri  63146  USA
Phone:  (314) 878-4600
FAX:  (314) 878-6814
Internet:  www.watlow.com
e-mail: info@watlow.com

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

Optional stainless steel sheath
• Available for more corrosive atmosphere

Nickel-plated steel terminal posts
• Posts are securely riveted to ensure a positive,trouble-free

connection to the resistance circuit

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

UL

®

is a registered trademark of Underwriter’s Laboratories, Inc.