If the motor service factor is 1 0 or a maximum of 115 protection is wanted pick one size smaller heater than indicated.
Allen bradley heating element chart.
Refer to the specified table and use the controller size and motor amps to select the heater catalog number.
Pick heaters from the table below.
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Consult local allen bradley office.
Sizing heater elements for motor starters.
0 18 0 20 0 22 0 24 0 26.
The allen bradley heater tables below are two of the most common used for sizing standard overload relay protection for type n and type w heater elements.
Symbolic dirty blonde hair highlights n9 allen bradley overload heater motor control overload relays heater element specifications ladder diagram an overview.
If motor amps are not known an approximate value may be found.
Find heater table number below using the product class controller size and phase.
Rockwell automation sales office or allen bradley distributor for additional information.
Allen bradley overload relay heater tables for bulletin 709 509.
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The rating of the relay in amperes at 40 c is 115 of the full load amps listed for the heater type no.
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By eva august 1 2020.
Type w heater elements for bulletin 509 starters table 150.
Heater element selection the full load amps listed in the tables are to be used for heater element selection.
The old style type n heater elements are used with bulletin 709 motor starters and overload relay blocks.
Westinghouse a200 overload relay heater elements for motor protection.
Allen bradley 2100 centerline 709 2100 centerline 509 cutler hammer.
Heater table number is found in the column under the type of overload and phase.
Heater element selection procedure when temperature at controller is 10 c 18 f greater than temperature at motor ambient temperature correction the ambient temperature at the motor and controller is the same in most applications.
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Allen bradley heating element chart.
Sizing heater elements for motor starters.