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Watlow Firerod

The FIREROD Cartridge Heater revolutionized the heating element industry in 1954 when it was patented as the first swaged cartridge heater. The mechanical procedure of swaging reduces the diameter of the heater by compacting the unit; this directly improves the heat transfer and efficiency of the heater.

Watlow FIREROD Cartridge Heaters Brochure (PDF)

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Firerod

441 items

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  • Watlow firerod cartridge heaters J5A45-E12
    J5A45-E12 Watlow Cartridge Heater 1/2" O.D. x 5", 240V, 500 W
    J5A45-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2" O.D. x 5" Sheath, 240 VAC, 500 Watts Total @ 72W/in² Density, 6" Solid Copper Pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J5A121-E12
    J5A121-E12 Watlow Cartridge Heater 1/2ODx5L 120V 750W
    J5A121-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 5 in sheath, 120VAC, 750 Watts total @ 108W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J4J70-E12
    J4J70-E12 Watlow Cartridge Heater 1/2ODx4.5L 120V 750W
    J4J70-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 4-1/2 in sheath, 120VAC, 750 Watts total @ 120W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J4J69-E12
    J4J69-E12 Watlow Cartridge Heater 1/2ODx4.5L 120V 500W
    J4J69-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 4-1/2 in sheath, 120VAC, 500 Watts total @ 80W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J4J57-E12
    J4J57-E12 Watlow Cartridge Heater 1/2ODx4.5L 240V 500W
    J4J57-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 4-1/2 in sheath, 240VAC, 500 Watts total @ 80W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J4J32-E12
    J4J32-E12 Watlow Cartridge Heater 1/2ODx4.5L 240V 750W
    J4J32-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 4-1/2 in sheath, 240VAC, 750 Watts total @ 120W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J4A92-E12
    J4A92-E12 Watlow Cartridge Heater 1/2ODx4L 240V 500W
    J4A92-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 4 in sheath, 240VAC, 500 Watts total @ 92W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J4A90-E12
    J4A90-E12 Watlow Cartridge Heater 1/2ODx4L 240V 250W
    J4A90-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 4 in sheath, 240VAC, 250 Watts total @ 46W/in2 density, 6 in solid copper pins. No flexible lead options available.
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