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Low Density Cartridge Heaters
Low Density Cartridge Heaters
An Economical and Reliable Cartridge Heater, Used in Applications Requiring
Lower Operating Temperatures and Watt Densities
LDC Series
*
Typical Applications
l Heat Sealing Equipment
l Laminating Equipment
l Packaging Equipment
l Labeling Machines
l Molds and Dies
l Food Processing
l Refrigeration
l Shoe Machinery
l Glue Guns
l Wax Pots
l Heating Liquids
l Heating Gases
Low-density cartridge heaters are an
excellent, cost effective choice without
compromising quality for Original
Equipment Manufacturers (OEMs)
consuming large quantities of cartridge
heaters for their equipment.
Standard Specifications
and Tolerances
Performance Ratings
Maximum Temperature: 650°C
(1200°F)
Maximum Watt Density:
3.1 to 7.0 Watt/cm2 (20 to 45 Watt/in2)
depending on heater size and
operating temperature
The standard termination for low-density
cartridge heaters is Type F, consisting of
254 mm (10") internally connected flexible
lead wires with high temperature insulation,
UL approved for 300 or 600V service and
temperature rated to 250°C (482°F).
Note: To meet the requirements of your application we
offer over 40 standard termination styles to select from
that will solve many of the most common application
problems.
Ceramic end cap protects the cartridge
internally from outside contamination.
Resistance wire and lead wires are
mechanically spliced with heavy wall
nickel connectors for a positive electrical
connection.
Helically wound Nickel-Chrome resistance
wire is evenly stretched and strung through
ceramic insulators.
Alloy 304 stainless steel is used to provide
high temperature strength, good thermal
conductivity and resistance to oxidation
up to 650°C (1200°F). Alloy 304 is a
Nickel-Chromium stainless steel. For
immersion heating of corrosive solutions
contact OMEGA.
Specially selected grain size high purity
Magnesium Oxide (MgO) is used to fill all
remaining space inside the ceramic insulator,
thus increasing thermal conductivity,
dielectric strength and heater life.
Sheath is roll crimped over a 304 stainless
steel end disc. A mica spacer electrically
insulates the heater core from the end disc.
This style end seal is not moisture proof.
Dimensional Specifications
Nominal Diameter
3
⁄16
Actual Diameter inch 0.185 0.247 0.372 0.496 0.621 0.745 0.870 0.933 0.995 1.250
Actual Diameter mm 4.70 6.27 9.45 12.60 15.77 18.92 22.10 23.70 25.27 31.75
Diameter Tolerance 0.051 mm (±0.002")
Length Tolerance 1.59 mm ( ±1⁄16") up to 152 mm (6") long; 3.18 mm (±1⁄8") over 152 mm (6") long
Camber Tolerance 0.254 mm (0 .010") per foot of length
1
⁄4
3
⁄8
1
⁄2
5
⁄8
3
⁄4
7
⁄8
15
⁄16 1 11⁄4
0.127 mm
(
±0.005"
Electrical Specifications
Nominal Diameter
3
⁄16
Maximum Voltage 240 240 240 240 480** 480** 480** 480** 480** 480**
Maximum Amperage 1.5 3.5 6 8 10 15 15 15 25 30
Maximum Wattage Contact OMEGA
Wattage Tolerance Plus 5%, minus 10%
Resistance Tolerance Plus 10%, minus 5%
* Low density cartridge heaters are UL recognized and CSA certified in many design variations under UL File Number E65652 and CSA File Number 043099.
If you require UL and/or CSA Agency Approval, please specify when ordering.
**480V when applicable. Contact OMEGA.
To order, call 1-800-826-6342 or shop online at omega.com
1
⁄4
3
⁄8
1
⁄2
5
⁄8
3
⁄4
7
⁄8
15
⁄16 1 11⁄4
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Low Density Cartridge Heaters
7
⁄8" Diameter, Actual 22.10 mm (0.870")
To Order Visit omega.com/ldc7 for Pricing and Details
Model No. Sheath Length
120V 240V mm inch Watt/cm
LDC00316 LDC00317
LDC00318 LDC00319
LDC00320 LDC00321
LDC00322 LDC00323
LDC00324 LDC00325
LDC00326 LDC00327
LDC00328 LDC00329
LDC00330 LDC00331
LDC00332 LDC00333
LDC00334 LDC00335
LDC00336 LDC00337
LDC00338 LDC00339
LDC00340 LDC00341
— LDC00342
Note: Model numbers above are for low density cartridge heaters terminated with Type F flexible leads, 254 mm (10") long.
Ordering Example: LDC00328, 600 W, 120 Vac, cartridge heater.
88.9 31⁄2 250 4.7 30
101.6 4 300 4.8 31
127.0 5 400 5.0 32
152.4 6 475 4.9 31
177.8 7 525 4.6 29
203.2 8 550 4.1 27
254.0 10 600 3.6 23
279.4 11 600 3.2 21
279.4 11 700 3.8 24
304.8 12 850 4.2 27
330.2 13 900 4.1 26
381.0 15 950 3.7 24
457.2 18 1000 3.2 21
1
546.1 21
⁄2 1000 2.7 17
Watts
Watt Density
2
Watt/in
2
Order by model number from the
standard sizes and ratings list on
the preceding pages. Note that
model numbers shown are for
heaters with Type F Termination
[254 mm (10") leads].
Custom Engineered/Manufactured Heaters
Because an electric heater can be very application specific, for sizes and
ratings not listed, OMEGA will design and manufacture a low-density cartridge
heater to meet your requirements.
Please Specify the Following:
l Diameter l Termination Types l Application Type
l Length l Lead Length l Operating Temperature
l Wattage l Cable/Braid Length
l Voltage l Special Features
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To order, call 1-800-826-6342 or shop online at omega.com
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