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TEMPCO Swaged Cartridge Heater: 300 W Watts, 3 1/2 in Lg, 12 in Lead Lg, 120V - Cartridge Heaters
TEMPCOCartridge Heaters

TEMPCO Swaged Cartridge Heater: 300 W Watts, 3 1/2 in Lg, 12 in Lead Lg, 120V

The TEMPCO Swaged Cartridge Heater (MPN HDC20540) is a 300 W cartridge heater with a watt density of 127 W/sq in and a heater voltage of 120V. It features a 3 1/2 in length and 12 in lead length.

SKU 3G-OTH-69537

Also listed as: HDC 20540 · HDC-20540

Brand
TEMPCO
Item
Swaged Cartridge Heater: 300 W Watts, 3 1/2 in Lg, 12 in Lead Lg, 120V
Category
Cartridge Heaters
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

TEMPCO
Manufacturer Part Number
HDC20540
Type
120V, 127 W/sq in
Lg
3 1/2 in
Lead Lg
12 in
Watt Density
127 W/sq in
Heater Voltage
120V

Technical Documents

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TEMPCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The TEMPCO Swaged Cartridge Heater (MPN HDC20540) is a 300 W cartridge heater with a watt density of 127 W/sq in and a heater voltage of 120V. It features a 3 1/2 in length and 12 in lead length.

Frequently Asked Questions

What is a TEMPCO swaged cartridge heater used for?

A TEMPCO swaged cartridge heater is used for direct immersion heating in industrial applications such as plastic injection molds, hot-runner systems, packaging machinery, and process equipment. Its swaged construction provides high watt density and efficient heat transfer in confined spaces.

What are the specifications of the TEMPCO HDC20540 cartridge heater?

The TEMPCO HDC20540 swaged cartridge heater delivers 300 W at 120V with a watt density of 127 W/sq in. It measures 3 1/2 in long with 12 in lead length. This model is designed for applications requiring concentrated heat in a compact form factor.

Where to buy TEMPCO cartridge heaters worldwide?

3G Electric supplies TEMPCO cartridge heaters worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner, we provide genuine TEMPCO parts like the HDC20540 to industrial buyers across 14 departments, including machining and electrical.

How to install a TEMPCO swaged cartridge heater?

Install the TEMPCO swaged cartridge heater by inserting it into a clean, close-tolerance hole for optimal heat transfer. Ensure the lead wires are properly insulated and the voltage matches the 120V rating. Avoid exceeding the maximum operating temperature to prevent damage.

Used in

Common applications for TEMPCO
Industrial ovens — TEMPCO finned strip heaters (CSF00027) for uniform heat distribution in drying and curing processes.
Plastic processing — TEMPCO swaged cartridge heaters (HDC20556) for precise heating in injection molds and extrusion dies.
Liquid heating — TEMPCO screw-plug immersion heaters (TSP03262) for heating water, oils, and chemicals in tanks.
Packaging machinery — TEMPCO rigid strip heaters (CSH01257) for sealing bars and heat tunnels.
HVAC systems — TEMPCO flexible strip heaters (SHS80373) for duct heating and freeze protection.
Radiant heating — TEMPCO linear infrared ceramic heaters (CRA10025) for indoor process heating and comfort heating.

TEMPCO Products

3G Electric supplies TEMPCO cartridge heaters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
TEMPCO Swaged Cartridge Heater: 300 W Watts, 3 in Lg, 12 in Lead Lg, 240V, 153 W/sq in, 1/4 in Dia (MPN HDC20539)
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TEMPCO Swaged Cartridge Heater: 300 W Watts, 3 in Lg, 12 in Lead Lg, 240V, 153 W/sq in, 1/4 in Dia (MPN HDC20539)
TEMPCO Swaged Cartridge Heater: 300 W Watts, 4 in Lg, 12 in Lead Lg, 120V, 109 W/sq in, 1/4 in Dia (MPN HDC20542)
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TEMPCO Swaged Cartridge Heater: 300 W Watts, 4 in Lg, 12 in Lead Lg, 120V, 109 W/sq in, 1/4 in Dia (MPN HDC20542)
TEMPCO Swaged Cartridge Heater: 300 W Watts, 3 in Lg, 12 in Lead Lg, 120V, 153 W/sq in, 1/4 in Dia (MPN HDC07930)
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TEMPCO Swaged Cartridge Heater: 300 W Watts, 3 in Lg, 12 in Lead Lg, 120V, 153 W/sq in, 1/4 in Dia (MPN HDC07930)
TEMPCO Swaged Cartridge Heater: 200 W Watts, 4 in Lg, 12 in Lead Lg, 120V, 73 W/sq in, 1/4 in Dia (MPN HDC20541)
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TEMPCO Swaged Cartridge Heater: 200 W Watts, 4 in Lg, 12 in Lead Lg, 120V, 73 W/sq in, 1/4 in Dia (MPN HDC20541)
TEMPCO Swaged Cartridge Heater: 200 W Watts, 3 in Lg, 12 in Lead Lg, 120V, 102 W/sq in, 1/4 in Dia (MPN HDC12674)
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TEMPCO Swaged Cartridge Heater: 200 W Watts, 3 in Lg, 12 in Lead Lg, 120V, 102 W/sq in, 1/4 in Dia (MPN HDC12674)
TEMPCO Swaged Cartridge Heater: 100 W Watts, 1 1/2 in Lg, 12 in Lead Lg, 120V, 127 W/sq in (MPN HDC20531)
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TEMPCO Swaged Cartridge Heater: 100 W Watts, 1 1/2 in Lg, 12 in Lead Lg, 120V, 127 W/sq in (MPN HDC20531)

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