Named for its 0.375 in. (9.5 mm) thickness, the Watlow® 375 strip
heater is a rugged heater capable of both high temperatures and high
watt densities.
The 375 strip heater's ruggedness comes from the design and use of
choice materials. Watlow begins construction of the strip heater by
accurately placing a coiled, nickel-chromium element wire in the center
of the heater. The element wire is then embedded in MgO-based insulation
compacted into a solid mass resulting in excellent heat conductivity
and high dielectric strength. Finally, the strip heater is enclosed in
aluminized steel sheathing.
