Maximum Work Temperatures from 107 to 295°C (225 to 565°F)
•
Available with Rust- Resistant Iron or Chrome-Steel Sheath
•
APPLICATIONS •For mounting across air stream within forced air ducts •For use in dryers, ovens and other process air heating equipment •For comfort heating applications, principally ducts, load banks and humidity controls •A wide range of air blast and convection requirements can be accommodated by the wide range of lengths, wattages, and watt densities available
FEATURES Durability is assured by rugged OMEGALUX™ strip heaters with locked-on aluminized steel fins. Fast heat transfer to air from large finned area. Large selection of lengths, wattages and watt densities. UL Component Recognized Finned elements (exclusive construction. High-quality, coiled nickel-chrome resistor wire is uniformly spaced over the width and length of the finned strip element, then embedded in high-grade refractory material which both insulates the wire and transfers heat rapidly. The refractory is then compressed to rock hardness and maximum density under tremendous hydraulic pressure to improve heat transfer from coil to sheath. Elements are oven baked at high temperature to semi-vitrify and mature the refractory. Sheath material is either rust-resisting iron or chrome steel. Fins of aluminized steel are provided to improve heat transfer to the air. Elements are individually replaceable.
CAUTION AND WARNING! Fire and electrical shock may result if products are used improperly or installed or used by non-qualified personnel. See inside back cover for additional warnings.
OTF Series — Rust-resistant iron sheath for sheath temperatures up to 400°C (750°F)
Model No.
Watts
W/in2
Dimensions cm (in)
Wt. (Lb)
A
B
F
OTF-102/*
250
10
26.7 (10 1/2)
24.1 (9 1/2)
15.2 (6)
2
OTF-103/*
350
15
26.7 (10 1/2)
24.1 (9 1/2)
15.2 (6)
2
OTF-106/*
600
25
26.7 (10 1/2)
24.1 (9 1/2)
15.2 (6)
2
OTF-125/*
500
17
30.5 (12)
27.9 (11)
19 .1(7 1/2)
2
OTF-127/*
750
25
30.5 (12)
27.9 (11)
19 .1(7 1/2)
2
OTF-122/240
250
8
30.5 (12)
27.9 (11)
19 .1(7 1/2)
2
OTF-149/*
900
25
35.6 (14)
33 (13)
24.1 (9 1/2)
2
OTF-153/120
325
8
38.7 (15 1/4)
36.2 (14 1/4)
27.3 (10 3/4)
3
OTF-151/*
1000
25
38.7 (15 1/4)
36.2 (23 3/4)
27.3 (10 3/4)
3
OTF-185/*
500
10
45.4 (17 7/8)
42.9 (16 7/8)
34.0 (13 3/8)
3
OTF-181/*
1000
19
45.4 (17 7/8)
42.9 (16 7/8)
34.0 (13 3/8)
3
OTF-182/*
1300
25
45.4 (17 7/8)
42.9 (16 7/8)
34.0 (13 3/8)
3
OTF-191/240
1000
18
49.5 (19 1/2)
45.0 (18 1/2)
38.1 (15)
3
OTF-192/*
1500
25
49.5 (19 1/2)
45.0 (18 1/2)
38.1 (15)
3
OTF-211/240
1000
16
53.3 (21)
50.8 (20)
41.9 (16 1/2)
3
OTF-212/240
1550
25
53.3 (21)
50.8 (20)
41.9 (16 1/2)
3
OTF-247/240
750
10
60.3 (23 3/4)
57.8 (22 3/4)
48.9 (19 1/4)
4
OTF-241/240
1000
14
60.3 (23 3/4)
57.8 (22 3/4)
48.9 (19 1/4)
4
OTF-242/240
1800
25
60.3 (23 3/4)
57.8 (22 3/4)
48.9 (19 1/4)
4
OTF-251/240
1250
16
64.8 (25 1/2)
62.2 (24 1/2)
53.3 (21)
4
OTF-252/240
2000
26
64.8 (25 1/2)
62.2 (24 1/2)
53.3 (21)
4
OTF-267/*
700
9
67.9 (26 3/4)
65.4 (25 3/4)
56.5 (22 1/4)
4
OTF-261/240
1350
17
67.9 (26 3/4)
65.4 (25 3/4)
56.5 (22 1/4)
4
OTF-262/240
2000
24
67.9 (26 3/4)
65.4 (25 3/4)
56.5 (22 1/4)
4
OTF-301/240
1500
17
77.2 (30 1/2)
74.6 (29 3/8)
63.5 (25)
4
OTF-302/240
2350
26
77.2 (30 1/2)
74.6 (29 3/8)
63.5 (25)
4
OTF-361/240
1000
9
91.1 (35 7/8)
88.6 (34 7/8)
77.2 (30 3/8)
5
OTF-363/240
1800
16
91.1 (35 7/8)
88.6 (34 7/8)
77.2 (30 3/8)
5
OTF-362/240
2850
26
91.1 (35 7/8)
88.6 (34 7/8)
77.2 (30 3/8)
5
OTF-382/240
2000
17
97.8 (38 1/2)
96.2 (37 7/8)
83.8 (33)
5
OTF-383
3100
26
97.8 (38 1/2)
96.2 (37 7/8)
83.8 (33)
5
OTF-43/240
3450
26
108 (42 1/2)
106 (41 7/8)
94.0 (37)
6
/* Specify voltage, insert 120 for 120 Vac or 240 for 240 Vac. Model numbers containing /120 or /240 are only available in that voltage.
OTF Series — Chrome-steel sheath for sheath temperatures up to 510°C (950°F)
Model No.
Watts
W/in2
Dimensions cm (in)
Wt. (Lb)
A
B
F
OTF-1004/*
475
23
26.7 (10 1/2)
24.1 (9 1/2)
15.2 (6)
2
OTF-1007/*
725
35
26.7 (10 1/2)
24.1 (9 1/2)
15.2 (6)
2
OTF-1003/240
350
17
26.7 (10 1/2)
24.1 (9 1/2)
15.2 (6)
2
OTF-1207/*
700
27
30.5 (12)
27.9 (11)
19 .1(7 1/2)
2
OTF-1209/*
900
34
30.5 (12)
27.9 (11)
19 .1(7 1/2)
2
OTF-1407/*
750
21
35.6 (14)
33 (13)
24.1 (9 1/2)
2
OTF-1401/*
1100
33
35.6 (14)
33 (13)
24.1 (9 1/2)
2
OTF-1508/240
850
21
35.6 (15 1/4)
36.2 (14 1/4)
27.3 (10 3/4)
3
OTF-1501/240
1250
33
38.7 (15 1/4)
36.2 (14 1/4)
27.3 (10 3/4)
3
OTF-1807/240
750
16
38.7 (17 7/8)
42.9 (16 7/8)
34.0 (13 3/8)
3
OTF-1801/240
1000
21
45.4 (17 7/8)
42.9 (16 7/8)
34.0 (13 3/8)
3
OTF-1802/240
1550
33
45.4 (17 7/8)
42.9 (16 7/8)
34.0 (13 3/8)
3
OTF-1901/240
1000
19
45.4 (19 1/2)
45.0 (18 1/2)
38.1 (15)
3
OTF-1902/240
1250
24
45.4 (19 1/2)
45.0 (18 1/2)
38.1 (15)
3
OTF-1903/240
1700
32
49.5 (19 1/2)
45.0 (18 1/2)
38.1 (15)
3
OTF-2101/240
1250
21
49.5 (21)
50.8 (20)
41.9 (16 1/2)
3
OTF-2107/240
750
13
53.3 (21)
50.8 (20)
41.9 (16 1/2)
3
OTF-2102/240
1900
32
53.3 (21)
50.8 (20)
41.9 (16 1/2)
3
OTF-2402/240
2200
32
60.3 (23 3/4)
57.8 (22 3/4)
48.9 (19 1/4)
4
OTF-2401/240
1000
15
60.3 (23 3/4)
57.8 (22 3/4)
48.9 (19 1/4)
4
OTF-2403/240
1450
21
60.3 (23 3/4)
57.8 (22 3/4)
48.9 (19 1/4)
4
OTF-2501/240
1500
20
64.8 (25 1/2)
62.2 (24 1/2)
53.3 (21)
4
OTF-2502/240
2400
32
64.8 (25 1/2)
62.2 (24 1/2)
53.3 (21)
4
OTF-2601/240
1600
20
67.9 (26 3/4)
65.4 (25 3/4)
56.5 (22 1/4)
4
OTF-2602/240
2500
32
67.9 (26 3/4)
65.4 (25 3/4)
56.5 (22 1/4)
4
OTF-3001/240
1800
20
67.9 (30 1/2)
74.6 (29 3/8)
63.5 (25)
4
OTF-3002/240
2800
31
77.2 (30 1/2)
74.6 (29 3/8)
63.5 (25)
4
OTF-3302/240
2100
20
85.1 (33 1/2)
83.5 (32 3/8)
71.1 (28)
5
OTF-3303/*
3150
31
85.1 (33 1/2)
83.5 (32 3/8)
71.1 (28)
5
OTF-3601/240
1500
14
91.1 (35 7/8)
88.6 (34 7/8)
77.2 (30 3/8)
5
OTF-3602/240
2300
21
91.1 (35 7/8)
88.6 (34 7/8)
77.2 (30 3/8)
5
OTF-3603/240
3450
31
91.1 (35 7/8)
88.6 (34 7/8)
77.2 (30 3/8)
5
OTF-3802/240
2450
21
97.8 (38 1/2)
95.3 (37 1/2)
83.8 (33)
5
OTF-3803/240
3600
31
97.8 (38 1/2)
95.3 (37 1/2)
83.8 (33)
5
OTF-430/240
4150
31
108 (42 1/2)
106 (41 5/8)
94.0 (37)
6
OTF-480/240
2250
14
122 (48)
119 (47)
108 (42 1/2)
8
/* Specify voltage, insert 120 for 120 Vac or 240 for 240 Vac. Model numbers containing /120 or /240 are only available in that voltage.
† All dollar amounts on this site are shown in Singapore currency.
Keywords:OTF Series Finned Strip Heaters For Fast Heat Transfer
