Watlow Heater Catalog

High-Temperature Heaters

Ceramic Fiber Heaters

B

C

A

Full Cylinder Double-Twisted Leads

Full Cylinder Units

Dimensions, in. (mm)

Heated Area

Overall

Electrical Ratings

I.D. (A)

Length (B)

O.D. (C) in. (mm) ± 1 / 8 (±3.2)

Power (Watts)

Surface

5 (0.14) 10 (0.28) 8 (0.23) 13 (0.37) 9 (0.26) 13 (0.37) 11 (0.31) 18 (0.51) 12 (0.34) 20 (0.57) 12 (0.34) 23 (0.65) 13 (0.37) 25 (0.71) A Approx. Net Wt. oz (kg)

18.6 (2.9) 18.6 (2.9) 14.2 (2.2) 14.2 (2.2) 11.7 (1.8) 11.7 (1.8) 11.7 (1.8) 11.7 (1.8) 10.6 (1.6) 10.6 (1.6) 10.6 (1.6) 10.6 (1.6) 11.3 (1.8) 11.3 (1.8) Loading 1 W/in 2 (W/cm 2 )

in. (mm) ± 1 / 16 (±1.6)

in. (mm)

± 1 / 16 (±1.6)

Volts

±5%

Lead Width

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

(13)

6

(152) (305) (152) (305) (152) (305) (152) (305) (152) (305) (152) (305) (152) (305)

2 2 3 3 3 3

(51) (51) (76) (76) (76) (76)

60

175 350 200 400 220 440 275 550 300 600 350 700 425 850

(13) 12

120

(19)

6

60

B

(19) 12

120

1 1

(25)

6

60

C

B

(25) 12

120

Full Cylinders (“Round Radiants”) Style A Leads Illustrated (Default Lead Style)

60 A

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

3 1 / 2 (89) 3 1 / 2 (89) 3 1 / 2 (89) 3 1 / 2 (89) 4 (102) 4 (102) 4 (102) 4 (102)

(32)

6

Double Twisted C

C

120 Full Cylinder Double-Twisted Leads

(32) 12

(38)

6

60

Leads

(38) 12

120 120 120 120 120

(45)

6

(45) 12

2 2

(51)

6

(51) 12

B

B

Full Cylinders (“Round Radiants”) Style A Leads Illustrated (Default Lead Style)

Full Cylinders (“Round Radiants”) Style B Leads Illustrated

C

C

A

A

Full Cylinder Units

Dimensions, in. (mm)

Heated Area

Overall

Electrical Ratings

I.D. (A)

Length (B)

7 (178) 8 (203) 8 (203) 9 (229) 9 (229) 10 1 / 2 (267) 10 1 / 2 (267) 12 (305) 12 (305) O.D. (C) in. (mm) ± 1 / 8 (±3.2)

Power (Watts)

Surface

Approx. Net Wt.

11.5 (1.8) 11.9 (1.8) 14.6 (2.3) 13.7 (2.1) 14.9 (2.3) 12.2 (1.9) 16.3 (2.5) 11.9 (1.8) 17.2 (2.7) W/in 2 (W/cm 2 ) Loading 1

in. (mm) ± 1 / 16 (±1.6)

in. (mm)

3 / 8 (10) Lead Width in. (mm)

± 1 / 16 (±1.6)

Volts

±5%

lbs (kg)

3 4 4 5 5

(76)

6 6 6 6 6 6 6 6 6

(152) (152) (152) (152) (152) (152) (152) (152) (152)

120 120 120 120 120 120 120 120 120

650 900

2.5 (1.1) 3.1 (1.4) 3.1 (1.4) 3.5 (1.6) 3.6 (1.6) 4.9 (2.2) 4.9 (2.2) 5.7 (2.6) 5.8 (2.6)

1 / 2 3 / 8 1 / 2 3 / 8 3 / 4 1 / 2 3 / 4 3 / 4

(102) (102) (127) (127) (165) (165) (203) (203)

(13) (10) (13) (10) (19) (13) (19) (19)

1100 1250 1400 1500 2000 1800 2600

6 1 / 2 6 1 / 2

8 8

1 Units with watt densities between 10.6 to 14.2 W/in 2 (1.6 to 2.2 W/cm 2 ), are coil designs suitable for use up to 2000°F (1093°C) maximum surface temperature. Units with watt densities between 14.6 to 17.2 W/in 2 (2.3 to 2.7 W/cm 2 ) are “round radiants” with sinuated element designs and high emissivity coating that are suitable for use up to 1800°F (982°C) maximum surface temperature. 2 For unheated insulation tubes, select the appropriate size during quoting process.

431