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 J3A173-E12
    J3A173-E12 Watlow Cartridge Heater 1/2ODx3L 120V 350W
    J3A173-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 120VAC, 350 Watts total @ 89W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J3A137-E12
    J3A137-E12 Watlow Cartridge Heater 1/2ODx3L 120V 750W
    J3A137-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 120VAC, 750 Watts total @ 193W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J3A132-E12
    J3A132-E12 Watlow Cartridge Heater 1/2ODx3L 120V 400W
    J3A132-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 120VAC, 400 Watts total @ 104W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J3A127-E12
    J3A127-E12 Watlow Cartridge Heater 1/2ODx3L 240V 600W
    J3A127-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 240VAC, 600 Watts total @ 154W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J3A112-E12
    J3A112-E12 Watlow Cartridge Heater 1/2ODx3L 240V 750W
    J3A112-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 240VAC, 750 Watts total @ 193W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J3A110-E12
    J3A110-E12 Watlow Cartridge Heater 1/2ODx3L 120V 500W
    J3A110-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 120VAC, 500 Watts total @ 129W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J3A109-E12
    J3A109-E12 Watlow Cartridge Heater 1/2ODx3L 240V 125W
    J3A109-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 240VAC, 125 Watts total @ 32W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J3A108-E12
    J3A108-E12 Watlow Cartridge Heater 1/2ODx3L 120V 125W
    J3A108-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 120VAC, 125 Watts total @ 32W/in2 density, 6 in solid copper pins. No flexible lead options available.
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