Allen bradley heater element table. The rating of the relay in amperes at 40 c is 115 of the full load amps listed for the heater type no. This provides class 20. The old style type n heater elements are used with bulletin 709 motor starters and overload relay blocks. Selection table follow the heater element selection instructions and.
Nema eutectic alloy overload relays. Allen bradley heater tables. Allen bradley standard overload relay protection is provided using type w heater elements for the 500 line. Allen bradley parts southland electric carries an extensive supply of allen bradley replacement heater elements for all applications.
When used with the proper short circuit protection these relays protect the motor motor controller and power wiring against overheating due to excessive overcurrents. 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. Consult local allen bradley office. We have extensive allen bradley heater tables available on our e commerce site to help you determine the exact heater you require.
Allen bradley overload relay heater tables for bulletin 709 509. Bulletin 592 eutectic alloy overload relays are thermal type devices.