Watlow Heater Catalog

Air Heaters

Duct Heaters D SERIES Application: High Temperature Air 800°F (427°C) • Removable alloy 840 WATROD elements • Without thermostat • General purpose enclosure • Steel flange 1 6 and 12 element heaters have (1) 1 inch NPT conduit opening; 18, 24, 30 and 42 element heaters have (2) 1 inch NPT conduit openings; 36, 48, 54 and 60 element heaters have (2) 1 inch NPT and (2) 1 1 / 4 inch conduit openings 2 All flanges are 12 inches wide

®

®

G Typical

D

C

a b

3 ½ in. (89 mm) Typical

11 ⁄ in. (295 mm)

E

9 in. (229 mm)

10 ½ in. (267 mm)

8 ¾ in. (222 mm)

F

3 ½ in. (89 mm)

B

⁄ in. (10 mm) Diameter

A

7 ⁄ in. (200 mm)

¼ in. (6 mm)

# of Elem. Volts kW Ph

# Circ

Part Number

WATCONNECT P/N J T/C K T/C

Ship Wt. lbs. (kg)

“A” Dim. in. (mm)

“B” Dim. in. (mm)

“C” Dim. in. (mm)

“D” Dim. in. (mm)

“E” Dim. in. (mm)

“F” Dim. in. (mm)

“G” Dim. in. (mm)

20 W/in 2 (3.1 W/cm 2 ) 6 240 6.0 1 1 6 240 6.0 3 1 6 480 6.0 1 1 6 480 6.0 3 1 12 240 12.0 1 1 12 240 12.0 3 1 12 480 12.0 1 1 12 480 12.0 3 1 18 240 18.0 1 2 18 240 18.0 3 1 18 480 18.0 1 1 18 480 18.0 3 1 24 240 24.0 1 2 24 240 24.0 3 2 24 480 24.0 1 1 24 480 24.0 3 1 30 240 30.0 3 2 30 480 30.0 1 2 30 480 30.0 3 1

50 (23) 27 7 / 8 (708) 20 (508) 2 3 / 4 (70) 6 1 / 2 (165) 3 (76) 5 3 / 4 (146) 2 1 / 2 (64) 50 (23) 27 7 / 8 (708) 20 (508) 2 3 / 4 (70) 6 1 / 2 (165) 3 (76) 5 3 / 4 (146) 2 1 / 2 (64) 50 (23) 27 7 / 8 (708) 20 (508) 2 3 / 4 (70) 6 1 / 2 (165) 3 (76) 5 3 / 4 (146) 2 1 / 2 (64) 50 (23) 27 7 / 8 (708) 20 (508) 2 3 / 4 (70) 6 1 / 2 (165) 3 (76) 5 3 / 4 (146) 2 1 / 2 (64) 55 (25) 27 7 / 8 (708) 20 (508) 4 3 / 4 (121) 8 1 / 2 (215) 5 (127) 7 3 / 4 (197) 3 1 / 2 (89) 55 (25) 27 7 / 8 (708) 20 (508) 4 3 / 4 (121) 8 1 / 2 (215) 5 (127) 7 3 / 4 (197) 3 1 / 2 (89) 55 (25) 27 7 / 8 (708) 20 (508) 4 3 / 4 (121) 8 1 / 2 (215) 5 (127) 7 3 / 4 (197) 3 1 / 2 (89) 55 (25) 27 7 / 8 (708) 20 (508) 4 3 / 4 (121) 8 1 / 2 (215) 5 (127) 7 3 / 4 (197) 3 1 / 2 (89) 65 (30) 27 7 / 8 (708) 20 (508) 6 3 / 4 (171) 10 1 / 2 (267) 7 (178) 9 3 / 4 (248) 3 (76) 65 (30) 27 7 / 8 (708) 20 (508) 6 3 / 4 (171) 10 1 / 2 (267) 7 (178) 9 3 / 4 (248) 3 (76) 65 (30) 27 7 / 8 (708) 20 (508) 6 3 / 4 (171) 10 1 / 2 (267) 7 (178) 9 3 / 4 (248) 3 (76) 65 (30) 27 7 / 8 (708) 20 (508) 6 3 / 4 (171) 10 1 / 2 (267) 7 (178) 9 3 / 4 (248) 3 (76) 95 (43) 27 7 / 8 (708) 20 (508) 8 3 / 4 (222) 12 1 / 2 (318) 9 (229) 11 3 / 4 (298) 2 3 / 4 (70) 95 (43) 27 7 / 8 (708) 20 (508) 8 3 / 4 (222) 12 1 / 2 (318) 9 (229) 11 3 / 4 (298) 2 3 / 4 (70) 95 (43) 27 7 / 8 (708) 20 (508) 8 3 / 4 (222) 12 1 / 2 (318) 9 (229) 11 3 / 4 (298) 2 3 / 4 (70) 95 (43) 27 7 / 8 (708) 20 (508) 8 3 / 4 (222) 12 1 / 2 (318) 9 (229) 11 3 / 4 (298) 2 3 / 4 (70) 120 (55) 27 7 / 8 (708) 20 (508) 10 3 / 4 (273) 14 1 / 2 (368) 11 (279) 13 3 / 4 (349) 3 1 / 4 (83) 120 (55) 27 7 / 8 (708) 20 (508) 10 3 / 4 (273) 14 1 / 2 (368) 11 (279) 13 3 / 4 (349) 3 1 / 4 (83) 120 (55) 27 7 / 8 (708) 20 (508) 10 3 / 4 (273) 14 1 / 2 (368) 11 (279) 13 3 / 4 (349) 3 1 / 4 (83)

D6S10S C/F

C/F

D6S3S C2-50 C2-92

D6S11S C/F

C/F

D6S5S C2-43 C2-35

D12S10S C/F

C/F

D12S3S C2-236 C2-214

D12S11S C/F

C/F

D12S5S C2-43 C2-35

D18S10S C/F

C/F

D18S3S C2-236 C2-214

D18S11S C/F

C/F

D18S5S C2-43 C2-35

D24S10S C/F

C/F

D24S3S C2-218 C2-224

D24S11S C/F

C/F

D24S5S C2-225 C2-226 D30S3S C2-218 C2-224

D30S11S C/F

C/F

D30S5S C2-225 C2-226

CONTINUED

Notes: • See Watt Density vs. Air Temperature/Velocity charts on page 379 to confirm suitability in the application.

C/F - Contact factory, go to www.watlow.com/en/contact-us

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