Heater Catalog - Watlow

Thermowell2.50" WATROD195½ in. Dia.(140 mm)2½ in.(64 mm)BundleImmersion Heaters67⁄8 in. Dia.(174.6 mm)23⁄16 in. (55.6 mm) Cold (Ref.)"B"WATROD and FIREBAR Screw PlugImmersion Heaters®Application: Deionized/Demineralized Water• 2 1 /2 inch NPT screw plug• WATROD elements 2.50" WATROD20• With thermostat (DPST)Note: Higher amperage products requirea pilot duty thermostat with separatepower controller. Please see followingpages for available heaters withoutthermostats.• Moisture/explosion-resistant enclosure75⁄8 in. Dia.(193.7 mm)85⁄16 in. Dia.(211.1 mm)1½ in. NPT Hubs0.475 in. (12.1 mm) Dia. ElementsThermowell23⁄16 in. (55.6 mm) Cold (Ref.)"B"2½ in.(64 mm)BundleDescription Volts kW Ph60 W/in 2316 SS Plug3-316 SSElements(9.3 W/cm 2 )(Passivated)RAPID SHIP• RS - Next day shipmentup to 5 pieces“B” Dim.in. (mm)Ship Wt.lbs (kg)Type 4 (30 to 110°F) Type 5A (60 to 250°F) Type 7A (100 to 550°F)PartPartPartNumber Del. Number Del. Number Del.Moisture/Explosion-Resistant Enclosure240 3.0 3 7 5 /8 (193.7) 10 (5) BLR77L3C4 RS BLR77L3C5A RS BLR77L3C7A RS480 3.0 3 7 5 /8 (193.7) 10 (5) BLR77L5C4 RS BLR77L5C5A RS BLR77L5C7A RS240 4.5 3 10 5 /8 (269.9) 11 (5) BLR710L3C4 RS BLR710L3C5A RS BLR710L3C7A RS480 4.5 3 10 5 /8 (269.9) 11 (5) BLR710L5C4 RS BLR710L5C5A RS BLR710L5C7A RS240 6.0 3 14 5 /8 (371.5) 13 (6) BLR714L3C4 RS BLR714L3C5A RS BLR714L3C7A RS480 6.0 3 14 5 /8 (371.5) 13 (6) BLR714L5C4 RS BLR714L5C5A RS BLR714L5C7A RS240 7.5 3 17 5 /8 (447.7) 13 (6) BLR717L3C4 RS BLR717L3C5A RS BLR717L3C7A RS240 9.0 3 20 5 /8 (523.9) 15 (7) BLR720L3C4 RS BLR720L3C5A RS BLR720L3C7A 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.WATLOW ®187