Watlow Heater Catalog
Immersion Heaters
WATROD and FIREBAR Screw Plug Immersion Heaters
®
®
¾ in. NPT Knockout
General Purpose
Thermowell 0.475 in. (12.1 mm) Dia. Elements
Application: Process Water • 2 inch NPT screw plug
2 ¼ in. (57 mm) Bundle
4 ⁄ in. Dia. (117.5 mm)
13
• WATROD elements • Without thermostat • General purpose enclosure
2 ⁄ in. (65.1 mm) Cold (Ref.)
4 ¼ in. Dia. (108 mm)
"B"
• Moisture/Explosion-Resistant enclosure (suitable for use in non-classified areas only) 2" WATROD
Moisture/Explosion- Resistant
¾ in. NPT Hubs
0.475 in. (12.1 mm) Dia. Elements
Thermowell
2 ¼ in. (57 mm) Bundle
5 ⁄ in. Dia. (136.5 mm)
14
2 ⁄ in. (65.1 mm) Cold (Ref.)
4 ⁄ in. Dia. (112.7 mm)
"B"
120V WATCONNECT Part Number
240V WATCONNECT Part Number
480V WATCONNECT Part Number
“B” Dim. in. (mm)
Part Number
Ship Wt. lbs (kg)
Description Volts
kW Ph
Type J T/C
Type K T/C
Type J T/C
Type K T/C
Type J T/C
Type K T/C
General Purpose Enclosure
120/240 2.0 1 9 3 / 4 (248) BGN79N6S 240/480 2.0 1 9 3 / 4 (248) BGN79N7S 120/240 3.0 1 13 1 / 4 (337) BGN713E6S 240/480 3.0 1 13 1 / 4 (337) BGN713E7S 120/240 4.0 1 17 3 / 4 (451) BGN717N6S 240/480 4.0 1 17 3 / 4 (451) BGN717N7S 120/240 5.0 1 20 1 / 4 (514) BGN720E6S 240/480 5.0 1 20 1 / 4 (514) BGN720E7S 240/480 6.0 1 25 1 / 4 (641) BGN725E7S 240/480 8.0 1 32 3 / 4 (832) BGN732N7S 240/480 10.0 1 40 1 / 4 (1022) BGN740E7S 120 3.0 1 9 3 / 4 (248) BHN79N1S 240 3.0 3 9 3 / 4 (248) BHN79N3S 480 3.0 3 9 3 / 4 (248) BHN79N5S 120 4.5 1 13 1 / 4 (337) BHN713E1S 240 4.5 3 13 1 / 4 (337) BHN713E3S 480 4.5 3 13 1 / 4 (337) BHN713E5S 240 6.0 3 17 3 / 4 (451) BHN717N3S 480 6.0 3 17 3 / 4 (451) BHN717N5S 240 7.5 3 20 1 / 4 (514) BHN720E3S 480 7.5 3 20 1 / 4 (514) BHN720E5S 240 9.0 3 25 1 / 4 (641) BHN725E3S 480 9.0 3 25 1 / 4 (641) BHN725E5S 240 12.0 3 32 3 / 4 (832) BHN732N3S 480 12.0 3 32 3 / 4 (832) BHN732N5S 240 15.0 3 40 1 / 4 (1022) BHN740E3S 480 15.0 3 40 1 / 4 (1022) BHN740E5S 240 18.0 3 47 3 / 4 (1213) BHN747N3S 480 18.0 3 47 3 / 4 (1213) BHN747N5S
48 W/in 2 4 304 SS Plug 2-Alloy 800 Elements (7.5 W/cm 2 )
C1-15 C1-12 C1-17 C1-13 N/A N/A
4 (2) 4 (2) 5 (3) 5 (3) 6 (3) 6 (3) 7 (4) 7 (4) 7 (4) 8 (4) 9 (4) 5 (3) 5 (3) 5 (3) 6 (3) 6 (3) 6 (3) 7 (4) 7 (4) 8 (4) 8 (4) 9 (4) 9 (4) 9 (4) 9 (4) 10 (5) 10 (5) 11 (5) 11 (5)
N/A N/A C1-17 C1-13 C/F
C/F
C/F
C/F
C1-17 C1-13 N/A N/A
N/A N/A C1-17 C1-13 C/F
C/F
C/F
C/F
C1-17 C1-13 N/A N/A
N/A N/A C1-17 C1-13 C/F
C/F
C/F
C/F
C/F
C/F C/F C/F C/F C/F
N/A N/A
N/A N/A C/F N/A N/A C/F N/A N/A C/F N/A N/A C/F
C/F C/F C/F C/F
C/F C/F C/F C/F
48 W/in 2 304 SS Plug 3-Alloy 800 Element (7.5 W/cm 2 )
C/F
C/F
N/A N/A N/A N/A
N/A N/A C2-50 C2-92 N/A N/A N/A N/A N/A N/A C2-43 C2-35
C/F
C/F
N/A N/A N/A N/A
N/A N/A C2-50 C2-92 N/A N/A N/A N/A N/A N/A C2-43 C2-35 N/A N/A C2-50 C2-92 N/A N/A N/A N/A N/A N/A C2-43 C2-35 N/A N/A C2-50 C2-92 N/A N/A N/A N/A N/A N/A C2-43 C2-35 N/A N/A C2-50 C2-92 N/A N/A N/A N/A N/A N/A C2-43 C2-35 N/A N/A C2-236 C2-214 N/A N/A N/A N/A N/A N/A C2-43 C2-35 N/A N/A C2-236 C2-214 N/A N/A N/A N/A N/A N/A C2-43 C2-35 N/A N/A C2-236 C2-214 N/A N/A N/A N/A N/A N/A C2-43 C2-35
C/F - Contact factory, go to www.watlow.com/en/contact-us N/A - Not available
Note: All screw plug bundles are designed to fit the inside diameter of the equivalent mating coupling. They will not fit into the equivalent pipe inside diameter.
4 Wired for higher voltage 5 No third party recognition
172
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