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 J3A107-E12
    J3A107-E12 Watlow Cartridge Heater 1/2ODx3L 120V 250W
    J3A107-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 3 in sheath, 120VAC, 250 Watts total @ 64W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J2N43-E12
    J2N43-E12 Watlow Cartridge Heater 1/2ODx2.75L 240V 400W
    J2N43-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 2-3/4 in sheath, 240VAC, 400 Watts total @ 115W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J2J82-E12
    J2J82-E12 Watlow Cartridge Heater 1/2ODx2.5L 240V 400W
    J2J82-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 2-1/2 in sheath, 240VAC, 400 Watts total @ 128W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J2J81-E12
    J2J81-E12 Watlow Cartridge Heater 1/2ODx2.5L 120V 400W
    J2J81-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 2-1/2 in sheath, 120VAC, 400 Watts total @ 128W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J2J70-E12
    J2J70-E12 Watlow Cartridge Heater 1/2ODx2.5L 240V 500W
    J2J70-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 2-1/2 in sheath, 240VAC, 500 Watts total @ 161W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J2J68-E12
    J2J68-E12 Watlow Cartridge Heater 1/2ODx2.5L 120V 250W
    J2J68-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 2-1/2 in sheath, 120VAC, 250 Watts total @ 81W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J2J67-E12
    J2J67-E12 Watlow Cartridge Heater 1/2ODx2.5L 120V 100W
    J2J67-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 2-1/2 in sheath, 120VAC, 100 Watts total @ 32W/in2 density, 6 in solid copper pins. No flexible lead options available.
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  • Watlow firerod cartridge heaters J2J66-E12
    J2J66-E12 Watlow Cartridge Heater 1/2ODx2.5L 120V 500W
    J2J66-E12

    Watlow

    Product Type: Cartridge Heaters

    Watlow FIREROD Cartridge Heater, 1/2 in OD x 2-1/2 in sheath, 120VAC, 500 Watts total @ 161W/in2 density, 6 in solid copper pins. No flexible lead options available.
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