Heater Catalog - Watlow

Tubular HeatersThreaded Stud Terminal with HardwareCeramic InsulatorsStraight Length Annealed SheathPermits Field or Factory BendingExtendedCapabilityNo-HeatExtended Capabilities For1 in.(25 mm)WATROD Single/Double-Ended HeatersHeated LengthBASheath LengthNo-Heat1 in.(25 mm)OptionsTerminal EnclosuresGeneral purpose terminal enclosures, withoutthermostats, are standard on all screw plugThreaded Stud Terminalwith HardwareCeramic Insulatorsimmersion heaters. To meet specific applicationrequirements, Watlow offers the following optionalterminal enclosures:• General purpose with single or double pole thermostat• Moisture-resistant or corrosion resistant—available withoptional single or double pole thermostat• Explosion-resistant class 1, groups B, C and Dexplosion resistant—available with optional singleor double-pole thermostat.• Explosion and moisture-resistant combination—available with optional single- or double-polethermostatZoned HeatersMultiple zone heaters with up to (5) zones are available.5/8 Straight Length Annealed SheathFeatures and BenefitsStandard sheath materialsPermits Field or Factory Bending• Optional Bmaterials available which includetitanium, alloy 20, Hastelloy C276, 321 SS andalloy 4001" A1"SpecificationsDouble-Ended1"Single-EndedElement Diameters Dia. in 2 Dia. (mm) cm 2 Dia. in 2 Dia. (mm) cm 2in. (mm) 0.490 1.539 (12.45) (9.93) 0.490 1.539 (12.45) (9.930)and Surface Area per Linearin 2 (cm 2 )Diameter Tolerance± 0.005 in. (0.13 mm)Sheath Materials Extended: Alloy 400 Contact Watlow Extended: Alloy 600 1800°F (980°C)Max. Operating Titanium Contact Watlow Steel 750°F (400°C)TemperatureSheath Length By Diameter Sheath Sheath Sheath Sheathin. (mm) Dia. Length (in.) Dia. (mm) Length (mm) Dia. Length (in.) Dia. (mm) Length (mm)Extended:Extended:0.490 11 to 265 (12.45) (280 to 6731) 0.490 11 to 125 (12.45) (280 to 3175)Max. Voltage/Amperage Dia. Volts Ampere Dia. Volts AmpereBy Dia. 0.490 (12.45) 600VAC 40 0.490 (12.45) 480VAC 30in. (mm)Ohms Per Heated Inch Dia. Min. Max. Dia. Min. Max.By Dia. 0.490 0.035Ω 21Ω 0.490 0.150Ω 24ΩWATLOW ®79