RS Components 731-243 Cartridge Heater 240V 100W 0.37" x 1.5" Made in USA

RS Components 731-243 Cartridge Heater 240V 100W 0.37" x 1.5" Made in USA

The RS Components 731-243 is a cylindrical cartridge heater rated at 240V and 100 watts, measuring 0.37 inches in diameter by 1.5 inches in length. Cartridge heaters of this type are designed to deliver concentrated, localized heat directly into drilled holes in metal tooling, platens, dies, and similar components. The heating element is housed in a compact stainless steel cylinder with a braided fiberglass lead wire, allowing installation in tight spaces where surface heaters cannot reach. This unit was manufactured in the USA by RS Components and is new and unused in its original bag.

Specifications & What's Included

• Part Number: 731-243
• Voltage: 240V
• Power Rating: 100W
• Diameter: 0.37" (approximately 9.5 mm)
• Length: 1.5"
• Lead Wire: Braided fiberglass insulation
• Country of Manufacture: USA
• Date Code: 9530 (stamped on heater body)
• Includes: Cartridge heater in original RS Components bag

Applications

Cartridge heaters are standard components in industrial process heating wherever localized heat must be introduced directly into a metal part. They are commonly used in plastic injection moulding dies and hot runner manifolds, rubber moulding platens, packaging and heat-sealing equipment, laboratory hot plates, medical device tooling, and precision machinery where temperature must be controlled in a restricted zone. The design — a resistive element compressed inside a metal sheath — allows the heater to be pressed or slid into a drilled hole in the workpiece, making direct thermal contact for efficient heat transfer. RS Components has long supplied cartridge heaters in standard sizes to engineering and manufacturing customers across the UK, Europe, and beyond; this 0.37" diameter size fits a common bore specification used in many standard die and platen designs.