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304 Stainless Steel Cartridge Heater 1.3" OD 3.3 - 24" Long

Low Density Cartridge Heater with 304 Stainless Steel Sheath 1 1/4 (31.75 mm) Nominal Diameter


Item# LDC00403

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $79.57
5-9 $75.59
10-24 $74.00
25-49 $70.82
50-99 $69.23
100+ $67.63

In stock

Lead Time (If not in stock): 4 weeks
Low Density Cartridge Heater with 304 Stainless Steel Sheath 1 1/4 (31.75 mm) Nominal Diameter LDC00403 LDC00403
  • Cost Effective Cartridge Heaters of Uncompromised Quality
  • Low Watt Densities 3.1 to 7.0 W/cm2) (20 to 40 W/in2) (Depending on Heater Size and Operating Temperature)
  • Standard 304 Stainless Steel Sheath Material Provides High Temperature Strength, Good Thermal Conductivity and Resistance to Oxidation
  • U.L. Component Recognized*

LDC00403 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Power Density
Supply Voltage
Cartridge Length
Heater Diameter
lead length

  • Lead Material Nickel
  • Maximum Operating Temperature 1200°F
  • Sheath Material 304 Stainless Steel
Low Density Multi-Purpose cartridge heaters represent Omega's commitment to value-added customer service. Low-density cartridge heaters are an excellent, cost effective choice that does not compromise quality. They are ideal for Original Equipment Manufacturers (OEMs) that consume large quantities of cartridge heaters for their equipment.

Multi-purpose cartridge heaters are the solution for a multitude of original equipment manufacturers (OEMs) and maintenance (MRO) applications. Omega maintains over 65,000 semifinished cartridge heater substrates in stock, offering a combination of over 1000 sizes in industry standard diameters and lengths that match most customer requirements and applications.

Highly engineered specific purpose Omega cartridge heaters have been at the forefront of addressing the challenges of Original Equipment Manufacturers (OEMs) in a broad segment of diversified industries. As a company Omega is uniquely qualified and committed to providing value added expertise in engineering and manufacturing capabilities to assist our customers in developing highly engineered specific use cartridge heaters for dependable and reliable performance.

Let Omega provide the optimal solution to your thermal loop systems and cartridge heater design challenges.

*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.

Low Density Cartridge Heater 1¼" Diameter, Actual 1.245" ±0.002" (31.62 mm)
Sheath Length Model No. Watts Watt Density
inch mm 120V 240V Watt/cm2 Watt/in2
82.6 LDC00403 LDC00404 400 5.7 37
5 127.0 LDC00405 LDC00406 450 3.9 25
6 152.4 LDC00407 LDC00408 500 3.6 23
6 152.4 LDC00409 LDC00410 800 5.7 37
7 177.8 LDC00411 LDC00412 550 3.3 22
7 177.8 LDC00413 LDC00414 1000 6.1 39
9 228.6 LDC00415 LDC00416 675 3.1 20
10 254.0 LDC00417 LDC00418 1000 4.2 27
12 304.8 LDC00419 LDC00420 1000 3.4 22
14 355.6 LDC00421 2000 5.8 38
15 381.0 LDC00422 1250 3.4 22
16½ 419.1 LDC00423 LDC00424 1000 2.5 16
22½ 571.5 LDC00425 2200 3.9 25
24 609.6 LDC00426 2400 4.0 26
Model Numbers listed are cartridge heaters terminated with Type F flexible leads, 254 mm (10") long.
For other terminations and options contact Omega for Model Numbers and pricing.
Caution: These products are not recommended for direct immersion liquid heating applications.
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Can I use it to heat in a dry environment or an enclosed environment? If so, what is the accuracy?

Asked by: Anonymous
Thank you for the inquiry. This is not correct heater for air or enclosure. It is designed to be embedded i a metal block. For enclosure heaters please try following search term; Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2020-11-24
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