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COILED FINNED ELEMENTS
FOR ROUND DUCTWORK
U Rugged, Reliable,
Premium Quality
U Preformed Circular
Finned Strip Units for
Round Ducts
KSEF Series
U 1950 to 5000 Watts
U 120 and 240 Volt Units
U Excellent Heat Transfer
Capabilities
Dimensions cm (inches)
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.
B
A
22
(7/8)
j
FEATURES
KSEF Series is open construction;
requires mounting brackets to be
fabricated by user.
Elements may be nested inside
of each other, with adequate
clearance.
Controls. For thermostatic control
(AR thermostat) and overheat
protection (Type ARC), visit
OMEGA online
Alloy wire or bus bar should be
used for power connections
APPLICATION
Heating moving air or gas in a
round duct
SPECIFICATIONS
Sheath Material: iron or monel
Fin Material: iron sheath - aluminized
steel; monel sheath - monel
Power: 120 or 240 Vac
5
(2)
Maximum Sheath and Work
Temperatures: Free Air
Iron sheath 107°C (225°F)
Chrome-steel sheath 157°C (315°F)
Moving Air – air velocity at 16 fps
Iron sheath 238°C (460°F)
Chrome steel sheath 296°C (565°F)
To Order
Watts W/in
Type KSEF — Rust-Resistant Iron Sheath
1950 27 22.5 (87⁄8) 15.6 (61⁄8) KSEF-24/* 3
2500 26 27.3 (10
3100 27 31.8 (12
3700 26 57.2 (14
Type KSEF — Monel Sheath
1950 27 22.5 (87⁄8) 15.6 (61⁄8) KSEF-240M/* 3
2500 26 27.3 (10
3100 27 31.8 (12
3700 26 57.2 (14
4000 25 41.3 (16
4500 25 46.4 (18
5000 23 54.9 (21
/* Specify voltage, insert 120 for 120 Vac or 240 for 240 Vac. Model numbers containing
/120 or /240 are only available in that voltage.
OMEGALUX can supply other sizes and ratings. Call sales.
Dimensions cm (in) Wt.
2
A B Model Number (lb)
3
⁄4) 20.3 (8) KSEF-30/* 4
1
⁄2) 24.4 (93⁄4) KSEF-36/240 5
1
⁄2) 29.8 (113⁄4) KSEF-43/240 6
3
⁄4) 20.3 (8) KSEF-300M/* 4
1
⁄2) 24.4 (93⁄4) KSEF-360M/240 5
1
⁄2) 29.8 (113⁄4) KSEF-430M/240 6
1
⁄4) 34.3 (131⁄2) KSEF-480M/240 7
1
⁄4) 39.4 (151⁄2) KSEF-540M/240 8
5
⁄8) 47.9 (187⁄8) KSEF-640M/240 10
J-10
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