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RING HEATERS
“A” Series
U U.L. Component
Recognized
U CSA Certified
U For Flat Surfaces
U Rugged, Heavy-Duty
APPLICATIONS
U Tank Bottoms
U Glue and Lead
Melting Pots
U Dies
U Platens
U Valve Flanges
U Incubators
U Hot Plates
U Vulcanizers
FEATURES
Single-heat rings have two
terminals for single wattage,
ON-OFF switch or thermostat.
Three-heat rings have three
terminals which split the total rated
wattage into two equal circuits. By
using a three-heat switch 1⁄4, 1⁄2 or
full wattage may be obtained. Use
the two equal circuits in parallel to
obtain full wattage. Center terminal
is common.
Refractory-insulated construction
exclusively. By far the most rugged
and best for long, dependable service.
Easy installation. The circular
shape and the use of OMEGALUX
utility clamps simplifies the use of
ring heaters. Nesting rings to pack
heat in a small area can be done by
installing rings within each other. For
examples: A-651, A-802 and
A-903 provide 4050 watts within a
1031⁄32" (28 cm) circle.
Utility clamps.
Usually used in sets of 4 to clamp
ring elements on flat surfaces. 5⁄16"
(8 cm) flat-head machine screws are
normally used, with head brazed or
welded to work surface.
To order utility clamps, ask for model
number 6018 Clamp.
SPECIFICATIONS
Power: 120 or 240V
Wattage: 125 to 1800 watts
Sheath Material: Chrome steel
Max Sheath Temperature: 1200°F
Dimensions: inch (cm)
To Order
Watts W/In
300 12 331⁄32 (10) 111⁄16 (4) 5⁄16 (8) A-203/* A-20-33/* 0.7 (0.3)
400 15 331⁄32 (10) 111⁄16 (4) 5⁄16 (8) A-204/* A-20-34/* 0.7 (0.3)
500 19 331⁄32 (10) 111⁄16 (4) 5⁄16 (8) A-205/* A-20-35/* 0.7 (0.3)
450 14 45⁄8 (12) 21⁄4 (6) 5⁄16 (8) A-304/* A-30-34/* 0.8 (0.4)
500 15 45⁄8 (12) 21⁄4 (6) 5⁄16 (8) A-305/* A-30-35/* 0.8 (0.4)
550 17 45⁄8 (12) 21⁄4 (6) 5⁄16 (8) A-306/* A-30-36/* 0.8 (0.4)
500 12 57⁄16 (14) 3 (8) 5⁄16 (8) A-405/* A-40-35/* 0.8 (0.4)
660 16 57⁄16 (14) 3 (8) 5⁄16 (8) A-406/* A-40-36/* 0.8 (0.4)
750 18 57⁄16 (14) 3 (8) 5⁄16 (8) A-407/* A-40-37/* 0.8 (0.4)
400 10 61⁄16 (15) 45⁄16 (11) 5⁄16 (8) A-504/* A-50-34/* 0.9 (0.4)
450 11 61⁄16 (15) 45⁄16 (11) 5⁄16 (8) A-505/* A-50-35/* 0.9 (0.4)
500 13 61⁄16 (15) 45⁄16 (11) 5⁄16 (8) A-506/* A-50-36/* 0.9 (0.4)
660 12 61⁄8 (16) 3 (9) 5⁄16 (8) A-656/* A-65-36/* 1.0 (0.5)
®
750 14 61⁄8 (16) 3 (9) 5⁄16 (8) A-657/* A-65-37/* 1.0 (0.5)
1000 19 61⁄8 (16) 3 (9) 5⁄16 (8) A-651/* A-65-31/* 1.0 (0.5)
500 11 619⁄32 (17) 41⁄2 (11) 5⁄16 (8) A-605/* A-60-35/* 1.0 (0.5)
660 14 619⁄32 (17) 41⁄2 (11) 5⁄16 (8) A-606/* A-60-36/* 1.0 (0.5)
750 16 619⁄32 (17) 41⁄2 (11) 5⁄16 (8) A-607/* A-60-37/* 1.0 (0.5)
550 9 77⁄16 (19) 55⁄16 (13) 5⁄16 (8) A-705/* A-70-35/* 1.1 (0.5)
660 11 77⁄16 (19) 55⁄16 (13) 5⁄16 (8) A-706/* A-70-36/* 1.1 (0.5)
750 13 77⁄16 (19) 55⁄16 (13) 5⁄16 (8) A-707/* A-70-37/* 1.1 (0.5)
880 14 83⁄8 (21) 63⁄16 (16) 5⁄16 (8) A-808/* A-80-38/* 1.3 (0.6)
1050 16 83⁄8 (21) 63⁄16 (16) 5⁄16 (8) A-801/* A-80-31/* 1.3 (0.6)
1250 19 83⁄8 (21) 63⁄16 (16) 5⁄16 (8) A-802/* A-80-32/* 1.3 (0.6)
1000 10 1031⁄32 (28) 81⁄2 (22) 5⁄16 (8) A-901/* A-90-31/* 1.8 (0.6)
1500 16 1031⁄32 (28) 81⁄2 (22) 5⁄16 (8) A-902/* A-90-32/* 1.8 (0.6)
1800 19 1031⁄32 (28) 81⁄2 (22) 5⁄16 (8) A-903/* A-90-33/* 1.8 (0.6)
Designate voltage. Insert “120” for 120 Vac or “240” for 240 Vac. Lower wattages down to
*
125 watts and smaller outside diameters are also available. Contact OMEGALUX.
Ordering Examples: A-60-36/120, 3-element ring heater, 120 Vac, 660 W.
A-504/120, single-heat element heater.
Single Heat Ring
B
A
Dimensions: inch (cm)
2
0.53
1
1
(1.3)
⁄2 (3.8)
6018 Clamp
C
Single-Heat Element Three-Heat Element
Chrome Steel Sheath
A B C Model No. Model No.
Hole for
Dia. Stud
3
⁄8
(1)
Dimensions: inch (cm)
Chrome Steel Sheath
A-40-36/120
shown larger
than actual size.
5
⁄16 (0.8)
1
⁄2 (8.9)
3
Wt.
lb (kg)
1
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