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Metric FIREROD® Cartridge Heaters

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The Watlow FIREROD® not only sets the industry standard for cartridge heaters, but continues to make improvements in construction and design. Among those improvements is the metric FIREROD®, a variation of the FIREROD® cartridge heater built to meet the exact specifications of the global market.
Like its counterpart, the metric FIREROD® consistently outperforms other cartridge heaters with its design solutions such as its exclusive resistance wire winding and swaging process. These processes bring the resistance wire closer to the sheath and compacts the MgO insulation to maximize heat transfer. The end result is longer service life and better efficiency.

Tolerances
Diameter: - 0.02 mm, - 0.08 mm (- 0.0008 in., - 0.0031 in.)
Length: ± 2% with ± 2.4 mm (± 3/32 in.) min.
Wattage: + 10%, - 5%, wattage decreases approximately 5% with temperature. Wattage tolerances are for heaters at operating temperature.
Resistance: + 5%, - 10%, resistance is measured at room temperature following first heater operation.
Camber: 0.25 mm (0.01 in.) max. on any length to 300 mm (12 in.). For lengths over 300 mm: [Heater Length (mm)]2/182,900


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Termination Options for Metric FIREROD® Cartridge Heaters-2

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  Results 1 - 6 of 6 Unit of Measure: Imperial | Metric | Both  1 

Code No.

Nominal Diameter

Max. Voltage

Max. Crimped on Leads

Max. Crimped on Leads @ 230V

Max. Crimped on Leads @ 400V

FRCH-6.5MM 0.256 in 250 V 7.2 Amp 1650 W N/A
FRCH-M-8MM 0.315 in 250 V 7.2 Amp 1650 W N/A
FRCH-M-10MM 0.394 in 250 V 16.1 Amp 3700 W N/A
FRCH-M-12.5MM 0.492 in 400 V 16.1 Amp 3700 W 6440 W
FRCH-M-16MM 0.630 in 480 V 21 Amp 4830 W 8400 W
FRCH-M-20MM 0.787 in 480 V 21 Amp 4830 W 8400 W
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