Heater Catalog (Section) - Immersion Heaters - Watlow

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Immersion HeatersWATROD and FIREBAR Screw PlugImmersion HeatersApplication: Lightweight Oilsand Heat Transfer Oils• 2 1 /2 inch NPT screw plug• WATROD elements2.50" WATROD19• With thermostat (DPST)Note: Higher amperage products requirea pilot duty thermostat with separatepower controller. Please see followingpages for available heaters withoutthermostats.• General purpose or moisture/explosionresistantenclosureDescription Volts kW Ph23 W/in 2 6Steel Plug3-SteelElements(3.6 Wcm 2 )2.50" WATROD2.50" WATROD19205½ in. Dia.(140 mm)General Purpose67⁄8 in. Dia.(174.6 mm)5½ in. Dia.(140 mm)67⁄8 in. Dia.(174.6 mm)Moisture/Explosion-Resistant75⁄8 in. Dia.(193.7 mm)¾ in. NPT Knockout0.475 in. (12.1 mm) Dia. Elements®Thermowell¾ in. NPT 23⁄16 Knockout in. (55.6 mm) Cold (Ref.)"B" 0.475 in. (12.1 mm) Dia. ElementsThermowell1½ in. NPT Hubs23⁄16 in. (55.6 mm) Cold (Ref.)"B"2½ in.(64 mm)Bundle0.475 in. (12.1 mm) Dia. ElementsThermowell2½ in.(64 mm)Bundle2½ in.(64 mm)Bundle1½ in. NPT Hubs23⁄16 in. (55.6 mm) Cold (Ref.)0.475 in. (12.1 mm) Dia. Elements85⁄16 in. Dia.(211.1 mm)"B" Thermowell2.50" WATROD2½ in.75⁄8 in. Dia.(64 mm)20(193.7 Type mm) 4 (30 to 110°F) Type 5A (60 to 250°F) Type 7A (100 to Bundle 550°F)“B” Dim. Ship Wt. PartPartPartin. (mm) lbs (kg) Number Del. Number 23⁄16 in. (55.6 Del. mm) Cold (Ref.) Number Del.85⁄16 in. Dia.General Purpose Enclosure"B"(211.1 mm)240 3.0 3 17 1 /4 (438) 10 (5) BLS717E3S4 RS BLS717E3S5A RS BLS717E3S7A RS480 3.0 3 17 1 /4 (438) 10 (5) BLS717E5S4 RS BLS717E5S5A RS BLS717E5S7A RS240 4.5 3 24 3 /4 (629) 13 (6) BLS724N3S4 RS BLS724N3S5A RS BLS724N3S7A RS480 4.5 3 24 3 /4 (629) 13 (6) BLS724N5S4 RS BLS724N5S5A RS BLS724N5S7A RS240 6.0 3 32 1 /4 (819) 15 (7) BLS732E3S4 RS BLS732E3S5A RS BLS732E3S7A RS480 6.0 3 32 1 /4 (819) 15 (7) BLS732E5S4 RS BLS732E5S5A RS BLS732E5S7A RS240 7.5 3 39 3 /4 (1010) 16 (8) BLS739N3S4 RS BLS739N3S5A RS BLS739N3S7A RS480 7.5 3 39 3 /4 (1010) 16 (8) BLS739N5S4 RS BLS739N5S5A RS BLS739N5S7A RS240 9.0 3 47 1 /4 (1200) 18 (9) BLS747E3S4 RS BLS747E3S5A RS BLS747E3S7A RS®23 W/in 2 6Steel Plug3-SteelElements(3.6 Wcm 2 )RAPID SHIP• RS - Next day shipmentup to 5 piecesMoisture/Explosion-Resistant Enclosure 7240 3.0 3 17 1 /4 (438) 13 (6) BLS717E3C4 RS BLS717E3C5A RS BLS717E3C7A RS480 3.0 3 17 1 /4 (438) 13 (6) BLS717E5C4 RS BLS717E5C5A RS BLS717E5C7A RS240 4.5 3 24 3 /4 (629) 16 (8) BLS724N3C4 RS BLS724N3C5A RS BLS724N3C7A RS480 4.5 3 24 3 /4 (629) 16 (8) BLS724N5C4 RS BLS724N5C5A RS BLS724N5C7A RS240 6.0 3 32 1 /4 (819) 18 (9) BLS732E3C4 RS BLS732E3C5A RS BLS732E3C7A RS480 6.0 3 32 1 /4 (819) 18 (9) BLS732E5C4 RS BLS732E5C5A RS BLS732E5C7A RS240 7.5 3 39 3 /4 (1010) 19 (9) BLS739N3C4 RS BLS739N3C5A RS BLS739N3C7A RS480 7.5 3 39 3 /4 (1010) 19 (9) BLS739N5C4 RS BLS739N5C5A RS BLS739N5C7A RS240 9.0 3 47 1 /4 (1200) 21 (10) BLS747E3C4 RS BLS747E3C5A RS BLS747E3C7A RSNote: All screw plug bundles are designed to fit the inside diameter ofthe equivalent mating coupling. They will not fit into the equivalent pipeinside diameter.6 Can be rewired to produce 1 ⁄3 of original kW and watt density(3-phase only)7 CSA certified only214 WATLOW ®
Immersion HeatersWATROD and FIREBAR Screw PlugImmersion Heaters®®Application: Lightweight Oilsand Heat Transfer Oils• 2 1 /2 inch NPT screw plug• WATROD elements• Without thermostat• General purpose or moisture/explosionresistantenclosure2.50" WATROD1718General Purpose45⁄8 in. Dia.(117.5 mm)Moisture/Explosion-Resistant53⁄8 in. Dia.(136.5 mm)4½ in. Dia.(114 mm)¾ in. NPT Knockout0.475 in. (12.1 mm) Dia. ElementsThermowell¾ in. NPT Hubs23⁄16 in. (55.6 mm) Cold (Ref.)"B"0.475 in. (12.1 mm) Dia. ElementsThermowell2½ in.(64 mm)Bundle2½ in.(64 mm)Bundle411⁄16 in. Dia.(119.1 mm)23⁄16 in. (55.6 mm) Cold (Ref.)"B"“B” Dim. PartShip Wt.PartShip Wt.Description Volts kW Ph in. (mm) Number Del. lbs (kg) Number 7 Del. lbs (kg)General Purpose Enclosure Moisture /Explosion-Resistant Enclosure23 W/in 2 6 120 3.0 1 17 1 /4 (438) BLS717E1S RS 9 (4) BLS717E1C RS 12 (6)Steel Plug3-Steel240 3.0 3 17 1 /4 (438) BLS717E3S RS 9 (4) BLS717E3C RS 12 (6)Elements 480 3.0 3 17 1 /4 (438) BLS717E5S RS 9 (4) BLS717E5C RS 12 (6)(3.6 Wcm 2 ) 120 4.5 1 24 3 /4 (629) BLS724N1S RS 12 (6) BLS724N1C RS 15 (7)240 4.5 3 24 3 /4 (629) BLS724N3S RS 12 (6) BLS724N3C RS 15 (7)480 4.5 3 24 3 /4 (629) BLS724N5S RS 12 (6) BLS724N5C RS 15 (7)240 6.0 3 32 1 /4 (819) BLS732E3S RS 14 (7) BLS732E3C RS 17 (8)480 6.0 3 32 1 /4 (819) BLS732E5S RS 14 (7) BLS732E5C RS 17 (8)240 7.5 3 39 3 /4 (1010) BLS739N3S RS 15 (7) BLS739N3C RS 18 (9)480 7.5 3 39 3 /4 (1010) BLS739N5S RS 15 (7) BLS739N5C RS 18 (9)240 9.0 3 47 1 /4 (1200) BLS747E3S RS 17 (8) BLS747E3C RS 20 (9)480 9.0 3 47 1 /4 (1200) BLS747E5S RS 17 (8) BLS747E5C RS 20 (9)240 12.5 3 63 3 /4 (1619) BLS763N3S RS 20 (9) BLS763N3C RS 23 (11)480 12.5 3 63 3 /4 (1619) BLS763N5S RS 20 (9) BLS763N5C RS 23 (11)240 15.0 3 76 1 /4 (1937) BLS776E3S RS 23 (11) BLS776E3C RS 26 (12)480 15.0 3 76 1 /4 (1937) BLS776E5S RS 23 (11) BLS776E5C RS 26 (12)RAPID SHIP• RS - Next day shipmentup to 5 piecesNote: All screw plug bundles are designed to fit the inside diameter ofthe equivalent mating coupling. They will not fit into the equivalent pipeinside diameter.6 Can be rewired to produce 1 ⁄3 of original kW and watt density(3-phase only)7 CSA certified onlyWATLOW ®215
Page 1 and 2: Immersion HeatersMax. Operating Typ
Page 3 and 4: Immersion HeatersWATROD and FIREBAR
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Page 25 and 26: Thermowell2.50" WATROD195½ in. Dia
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Immersion HeatersExtendedCapability
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Immersion HeatersOver-the-Side Heat
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Immersion HeatersOver-the-Side Heat
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Immersion HeatersFIREROD ® Immersi
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Immersion HeatersFIREROD Immersion
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Heater Catalog (Section) - Immersion Heaters - Watlow

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