Watlow

375 finned strip

The 375 finned strip heater from Watlow is constructed of highly-compacted magnesium oxide (MgO) based insulation, which conducts heat efficiently from the nickel chromium element wire to the sheath. Two-inch wide (51 mm) nickel plated fins are attached to maximize surface contact allowing heat to transfer into the air faster. Lower sheath temperature and element life are maximized by this finned construction.

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)

375 features & benefits

• Nickel-chromium element wire is centered in the heater Assures uniform heat Aluminized steel sheath

• Operates at higher temperatures and resists corrosion better than iron-sheathed heaters

• Minimizes heat-up time Optional 430 stainless steel sheath

• Meets temperature requirements that reach up to 1200°F (650°C)

• Post terminals, welded to the element wire

• Produces strong, trouble-free connections

• Rigid 3/8″ (9.5 mm) thick design

• Enables the heater to fit into many existing applications over 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 needs

MI strip

The MI strip heater is a thin, responsive heater that uses the most advanced heater construction techniques. A nickel-chromium element wire is embedded in Watlow’s exclusive mineral insulation material, which has a much higher thermal conductivity than the mica and hard ceramic insulators used in conventional heaters. This thin layer of insulation brings the element wire closer to the heater sheath. The result is heat flows easily from the element wire to the sheath allowing the wire to run cooler than conventional heaters and increasing heater life.

MI 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 designs (UL File No. E52951)

MI features & benefits

• Higher watt densities than any other strip heater

• Provides faster heat up

• Exclusive mineral insulation

• Combines dielectric strength and superior thermal conductivity

• Transfers heat rapidly to the sheath 304 stainless steel sheath

• Maintains the high compaction of mineral insulation

• Produces a rigid heater