1 cm (0.375") DIAMETER
HEART CROSS-SECTION
⻬ Incoloy Sheath
⻬ 400 to 2500 Watts
⻬ 120, 208, 240, 275
and 480V
⻬ 40 W/in
2
⻬ 11⁄2" Cold End
(400 to 650 Watts)
⻬ 2
1
⁄8" Cold End
(800 to 2500 Watts)
⻬ 871°C (1600°F) Max
Sheath Temperature
⻬ Component of
Radiant Heater
(Type RAD and RADD)
ADVANTAGES
Specially constructed to provide
excellent service life in radiant
heating applications.
FEATURES
Type 8 Terminals: Standard with
threaded clip to facilitate wiring.
Retaining Rings locate elements
in radiant heater assemblies.
Work Temperatures: See Tubular
Heater Overview section on
omega.com/heaters
Bending: Customer’s minimum
inside bending radius is 3.8 cm
(11⁄2"). See bending requirements
in the Tubular Heater Overview
section on omega.com/heaters
1 (0.375) Dia. Incoloy Sheath
1.9
(0.75)
Dimensions: in (cm)
Incoloy Sheath
Sheath Heated Weight
Watts Volts W/In2 A B Model No. Price (lb)
400 120 40 101⁄4 (26) 71⁄4 (18) RTU-2063AX35/120V $70 0.8
650 120 40 165⁄8 (42) 135⁄8 (35) RTU-2063AX29/120V 69 0.8
800 120 40 211⁄16 (53) 163⁄16 (41) RTU-2083A/120V 89 0.8
800 208 40 211⁄16 (53) 163⁄16 (41) RTU-2083AV/208V 89 0.8
800 240 40 211⁄16 (53) 163⁄16 (41) RTU-2083A/240V 89 0.8
800 275 40 211⁄16 (53) 163⁄16 (41) RTU-2083AV/275V 89 0.8
1100 120 40 275⁄32 (69) 2229⁄32 (58) RTU-3113A/120V 96 1
1100 208 40 275⁄32 (69) 2229⁄32 (58) RTU-3113AV/208V 96 1
1100 240 40 275⁄32 (69) 2229⁄32 (58) RTU-3113A/240V 96 1
1100 275 40 275⁄32 (69) 2229⁄32 (58) RTU-3113AV/275V 96 1
1300 208 40 321⁄8 (82) 277⁄8 (71) RTU-3133AV/208V 107 1
1300 240 40 321⁄8 (82) 277⁄8 (71) RTU-3133A/240V 107 1
1300 275 40 321⁄8 (82) 277⁄8 (71) RTU-3133AV/275V 107 1
1300 480 40 321⁄8 (82) 277⁄8 (71) RTU-3133A/480V 107 1
1800 208 40 4227⁄32 (109) 3819⁄32 (98) RTU-4183AV/208V 125 1.3
1800 240 40 4227⁄32 (109) 3819⁄32 (98) RTU-4183A/240V 125 1.3
1800 275 40 4227⁄32 (109) 3819⁄32 (98) RTU-4183AV/275V 125 1.3
1800 480 40 4227⁄32 (109) 3819⁄32 (98) RTU-4183A/480V 125 1.3
2150 208 40 501⁄32 (127) 4517⁄32 (116) RTU-5213AV/208V 153 1.4
2150 240 40 501⁄32 (127) 4517⁄32 (116) RTU-5213A/240V 153 1.4
2150 275 40 501⁄32 (127) 4517⁄32 (116) RTU-5213AV/275V 153 1.4
2150 480 40 501⁄32 (127) 4517⁄32 (116) RTU-5213A/480V 153 1.4
2500 208 40 5715⁄32 (146) 537⁄32 (135) RTU-5253AV/208V 184 1.5
2500 240 40 5715⁄32 (146) 537⁄32 (135) RTU-5253A/240V 184 1.5
2500 275 40 5715⁄32 (146) 537⁄32 (135) RTU-5253AV/275V 184 1.5
2500 480 40 5715⁄32 (146) 537⁄32 (135) RTU-5253A/480V 184 1.5
2500 480 40 57
15
⁄32 (146) 537⁄32 (135) RTU-5253M/480V 184 1.5
Ordering Examples: RTU-4183AV/208V, 1800 W, 208V heater, $125.
RTU-2063AX35/120V, 400 W, 120V heater, $70.
To Order
(Specify Model Number)
RTU Style
Starts at
$
70
MOST POPULAR MODELS HIGHLIGHTED!
Dimensions: cm (in)
RTU-2083A/120V, $89,
shown smaller than actual size.
A ± 1/2%
APPLICATIONS
⻬ Radiant Heating
in
Room Ambient
⻬ Heating High
Velocity Air
⻬ Low Temperature
Clamp-ons
B