Heater Catalog (Section) - Immersion Heaters - Watlow

4"-150# FLANGEImmersion Heaters35½ in.(140 mm)Thermowell0.475 in. (12.1 mm) Dia. Element37⁄8 in. O.D.(98.4 mm)WATROD and FIREBAR ANSI FlangeImmersion Heaters8 in.(203 mm)4 in. (102 mm) Cold (Ref.)“B”®®Application: Bunker C, Asphalt and#6 Fuel Oil• 4 inch - 150 lb ANSI flange• FIREBAR elements• Without thermostat• General purpose ormoisture-resistant enclosuresGeneral Purpose and4"-150# FIREBAR FLANGE Moisture Resistant45½ in.(140 mm)83⁄8 in.(212.7 mm)Thermowell4 in. (102 mm) Cold (Ref.)“B”1 in. (25 mm)FIREBAR Element37⁄8 in. O.D.(98.4 mm)Description Volts kW Ph8 W/in 2 3304 SS Flange6-Alloy 800Elements(1.3 W/cm 2 )RAPID SHIP• RS - Next day shipmentup to 5 pieces#Circ.“B” Dim.in. (mm)1 The number and size of the conduit opening will comply with theNational Electrical Code ® standards.Ship Wt.lbs (kg)PartNumber Del.General Purpose EnclosurePartNumber Del.Moisture-Resistant Enclosure240 2.50 3 1 16 1 /2 (420) 35 (16) FONF16J22S RS FONF16J22W RS240 3.25 3 1 19 1 /2 (495) 38 (17) FONF19J22S RS FONF19J22W RS240 4.25 3 1 24 1 /2 (622) 41 (19) FONF24J22S RS FONF24J22W RS480 4.25 3 1 24 1 /2 (622) 41 (19) FONF24J21S RS FONF24J21W RS240 5.25 3 1 30 (762) 44 (20) FONF30A22S RS FONF30A22W RS480 5.25 3 1 30 (762) 44 (20) FONF30A21S RS FONF30A21W RS240 6.38 3 1 35 (889) 46 (21) FONF35A22S RS FONF35A22W RS480 6.38 3 1 35 (889) 46 (21) FONF35A21S RS FONF35A21W RS240 8.50 3 1 45 1 /2 (1156) 50 (23) FONF45J22S RS FONF45J22W RS480 8.50 3 1 45 1 /2 (1156) 50 (23) FONF45J21S RS FONF45J21W RS240 10.75 3 1 56 (1422) 54 (25) FONF56A22S RS FONF56A22W RS480 10.75 3 1 56 (1422) 54 (25) FONF56A21S RS FONF56A21W RSNotes: • All flange bundles are designed to fit the inside diameterof the equivalent standard schedule pipe• For ANSI flange dimensions, reference chart on page 2413 Wired for 3-phase operation only298 WATLOW ®