Watlow Heater Catalog

Immersion Heaters

WATROD and FIREBAR Square Flange Immersion Heaters

Heater Dimension

in.

(mm)

1 / 4 in. (6 mm)

1 in. (25 mm) FIREBAR Element

(4) 13 / 32 in. dia. (10 mm)

C

1 1 / 2 2 1 / 2 2 1 / 2 1 3 / 4

A C D E H

(38) (64) (64) (44) (33)

H Bundle O.D.

1 5 / 16

A No-Heat Section B

D

E

Immersed Length

2 1 / 2 inch Square Flange—FIREBAR Element FIREBAR Immersed

Part Number

Est. Ship.

Description kW

B Dimension in. (mm)

208VAC 3-Phase

240VAC 1-Phase

240VAC 3-Phase

480VAC 1-Phase

480VAC 3-Phase

Wt.

lbs (kg)

Applications: Clean and Potable Water 100 W/in 2 5 11 1 / 2 (292) FHNFA11J26N

FHNFA11J10N FHNFA20N10N FHNFA24G10N

FHNFA11J3N FHNFA20N3N FHNFA24G3N FHNFA33S3N FHNFB22L3J

FHNFA11J11N FHNFA20N11N FHNFA24G11N FHNFA33S11N FHNFB22L11J

FHNFA11J5N FHNFA20N5N FHNFA24G5N FHNFA33S5N FHNFB22L5J

5 7 8 9

(3) (4) (4) (5) (5)

20 3 / 4 (527) FHNFA20N26N 24 3 / 8 (619) FHNFA24G26N 33 15 / 16 (862) FHNFA33S26N 22 5 / 8 (575) FHNFB22L26J

Steel Flange 1-Alloy 800 (15.5 W/cm 2 ) Steel Flange 1-Alloy 800 (12.4 W/cm 2 ) 80 W/in 2

8

10 15 16

FHNFB22L10J

10

(6) 3 / 8 in. dia. (10 mm) Holes Equally Spaced On a "C" dia. Bolt Circle

A No-Heat Section

Heater Dimension

in.

(25.0) (mm)

1 in. (25 mm) FIREBAR Element

A C D E H

1

3 13 / 16 (96.8)

H Bundle

4 1 / 2 2 1 / 4

(114.0)

(57.0) (81.8)

3 7 / 32

1 / 4 in. (6 mm)

B Immersed Length

D

E

4 1 / 2 inch Square Flange—FIREBAR Element FIREBAR Immersed

Part Number

Est. Ship.

Description kW

B Dimension in. (mm)

208VAC 3-Phase

240VAC 3-Phase

480VAC 3-Phase

Wt.

lbs (kg)

Applications: Clean and Potable Water 100 W/in 2 18 10 1 / 2 (267)

FGNFB10J26N

FGNFB10J3N

FGNFB10J5N

16

(8)

Steel Flange 2-Alloy 800 (15.5 W/cm 2 ) 70 W/in 2 Steel Flange 2-Alloy 800 (10.9 W/cm 2 )

10 1 / 2 (267)

FGNFB10J26P

FGNFB10J3P

FGNFB10J5P

12

16

(8)

288