Allen Bradley Overload Heater Table

Heater element selection the full load amps listed in the tables are to be used for heater element selection.

Allen bradley overload heater table.

The old style type n heater elements are used with bulletin 709 motor starters and overload relay blocks. The rating of the relay in amperes at 40 c is 115 of the full load. Southland electrical supply is not an authorized distributor for allen bradley asea brown boveri benshaw bryant bussmann control techniques control technology. A class 20 overload relay will trip in 20 seconds or less at a current equal to 600 percent of its rating.

For application regarding class 10 and 30 overload relays consult local allen bradley office. Parts listed below are only a small sample of our extensive. Fuse rating a. Bulletin 592 eutectic alloy overload relays are thermal type devices.

Allen bradley heater elements. Allen bradley motor starter thermal overload heater units. Due to the large volume of heater elements available please call us with your inquiry or view the allen bradley heater tables available on our e commerce site to easily order online anytime. A class 30 overload relay will trip in 30 seconds or less at a current equal to 600 percent of its rating.

When used with the proper short circuit protection these relays protect the motor motor controller and power wiring against overheating due to excessive overcurrents. Thermal overload heaters allen bradley cutler hammer general electric siemens ite square d. Allen bradley standard overload relay protection is provided using type w heater elements for the 500 line. 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.

This provides class 20. Allen bradley overload relay heater tables for bulletin 709 509. Square d heater table 104. The trip free mechanism provides overload protection even when the reset button is pressed.