Finned Strip Heaters For Fast Heat Transfer

OTF Strip Heater Series

Finned Strip Heaters

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Rugged, Reliable Premium Quality
250 to 4150 Watts
120, 240 Volt Single Phase
3.8 cm (1 1/2") Strip with 5 cm (2") Wide Fins
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

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Descrição

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)
Model No.	Watts	W/in2	A	B	F	Wt. (Lb)
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)
Model No.	Watts	W/in2	A	B	F	Wt. (Lb)
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.