Watlow Strip Heaters
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375 Finned StripThe 375 finned strip heater from Watlow is constructedof highly-compacted magnesium oxide (MgO) basedinsulation, which conducts heat efficiently from the nickelchromium element wire to the sheath. Two-inch wide(51 mm) nickel plated fins are attached to maximizesurface contact allowing heat to transfer into the airfaster. Lower sheath temperature and element life aremaximized by this finned construction.MI StripThe MI strip heater is a thin, responsive heater that usesthe most advanced heater construction techniques.A nickel-chromium element wire is embedded in Watlow’sexclusive mineral insulation material, which has a muchhigher thermal conductivity than the mica and hard ceramicinsulators used in conventional heaters. This thin layer ofinsulation brings the element wire closer to the heater sheath.The result is heat flows easily from the element wire to thesheath allowing the wire to run cooler than conventionalheaters and increasing heater life.
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375 Strip Performance Capabilities•Aluminized steel sheath temperatures up to 1100°F (595°C)•430 stainless steel sheath temperatures up to 1200°F (650°C)•Watt densities up to 100 W/in•UL approved up to 240VAC (File No. E52951)•CSA approved up to 600VAC (File No. LR7392)Features and Benefits•Nickel-chromium element wire is centered in the heater Assures uniform heatAluminized steel sheath•Operates at higher temperatures and resists corrosionbetter than iron-sheathed heaters•Minimizes heat-up time Optional 430 stainless steel sheath• Meets temperature requirements that reach up to1200°F (650°C)•Post terminals, welded to the element wire•Produces strong, trouble-free connectionsRigid 3/8″ (9.5 mm) thick design•Enables the heater to fit into many existing applicationsOver 100 in-stock models in popular sizes and ratings•Allows next day shipment Available dimensions are 1in. (38 mm) wide and 5.5″to 48 in. (140 to 1219 mm) long•Fits a variety of application needsMI Strip Performance Capabilities•Sheath temperatures up to 1400°F (760°C)•Watt densities up to 140 W/in (21.7 W/cm•Maximum voltage up to 480VAC•UL component recognition for most 240VAC or less de-signs (UL File No. E52951)Features and BenefitsHigher watt densities than any other strip heater•Provides faster heat upExclusive mineral insulation•Combines dielectric strength and superior thermalconductivity•Transfers heat rapidly to the sheath304 stainless steel sheath•Maintains the high compaction of mineral insulation•Produces a rigid heater