Watlow Heater Catalog

Immersion Heaters

WATROD and FIREBAR Screw Plug Immersion Heaters

®

®

¾ in. NPT Knockout

Application: Bunker C, Asphalt and #6 Fuel Oil • 2 1 / 2 inch NPT screw plug

General Purpose

0.475 in. (12.1 mm) Dia. Elements

Thermowell

2 ½ in. (64 mm) Bundle

4 ⁄ in. Dia. (117.5 mm)

17

• WATROD elements • Without thermostat • General purpose enclosure

2 ⁄ in. (55.6 mm) Cold (Ref.)

4 ½ in. Dia. (114 mm)

"B"

• Moisture/Explosion-Resistant enclosure (suitable for use in non-classified areas only) 2.50" WATROD

Moisture/Explosion- Resistant

¾ in. NPT Hubs

0.475 in. (12.1 mm) Dia. Elements

Thermowell

2 ½ in. (64 mm) Bundle

18

5 ⁄ in. Dia. (136.5 mm)

2 ⁄ in. (55.6 mm) Cold (Ref.) "B"

4 ⁄ in. Dia. (119.1 mm)

WATCONNECT Part Number

WATCONNECT Part Number

“B” Dim.

Part Number

Ship Wt. lbs (kg)

Part Number 5

Ship Wt. lbs (kg)

Description Volts kW Ph

in.

(mm)

Type J T/C

Type K T/C

Type J T/C

Type K T/C

General Purpose Enclosure

Moisture/Explosion- Resistant Enclosure

8 W/in 2 3 Steel Plug 3-Steel Elements (1.3 W/cm 2 )

240 1.0 3 17 1 / 4 (438) BLS717E12S 480 1.0 3 17 1 / 4 (438) BLS717E13S 240 1.5 3 24 3 / 4 (629) BLS724N12S 480 1.5 3 24 3 / 4 (629) BLS724N13S 240 2.0 3 32 1 / 4 (819) BLS732E12S 480 2.0 3 32 1 / 4 (819) BLS732E13S 240 2.5 3 39 3 / 4 (1010) BLS739N12S 480 2.5 3 39 3 / 4 (1010) BLS739N13S 240 3.0 3 47 1 / 4 (1200) BLS747E12S 480 3.0 3 47 1 / 4 (1200) BLS747E13S 240 4.0 3 63 3 / 4 (1619) BLS763N12S 480 4.0 3 63 3 / 4 (1619) BLS763N13S 240 5.0 3 76 1 / 4 (1937) BLS776E12S 480 5.0 3 76 1 / 4 (1937) BLS776E13S

C2-50 C2-92 BLS717E12C C2-43 C2-35 BLS717E13C C2-50 C2-92 BLS724N12C C2-43 C2-35 BLS724N13C C2-50 C2-92 BLS732E12C C2-43 C2-35 BLS732E13C C2-50 C2-92 BLS739N12C C2-43 C2-35 BLS739N13C C2-50 C2-92 BLS747E12C C2-43 C2-35 BLS747E13C C2-50 C2-92 BLS763N12C C2-43 C2-35 BLS763N13C C2-50 C2-92 BLS776E12C C2-43 C2-35 BLS776E13C

C3-94 C3-93 C3-116 C3-118 C3-94 C3-93 C3-116 C3-118 C3-94 C3-93 C3-116 C3-118 C3-94 C3-93 C3-116 C3-118 C3-94 C3-93 C3-116 C3-118 C3-94 C3-93 C3-116 C3-118 C3-94 C3-93 C3-116 C3-118

9 (4) 9 (4) 12 (6) 12 (6) 14 (7) 14 (7) 15 (7) 15 (7) 17 (8) 17 (8) 20 (9) 20 (9) 23 (11) 23 (11)

12 (6) 12 (6) 15 (7) 15 (7) 17 (8) 17 (8) 18 (9) 18 (9) 20 (9) 20 (9) 23 (11) 23 (11) 26 (12) 26 (12)

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. 3 Wired for 3-phase operation only 5 No third party recognition

212