Allen Bradley Overload Heater Table

The old style type n heater elements are used with bulletin 709 motor starters and overload relay blocks.

Allen bradley overload heater table.

Fuse rating a. Parts listed below are only a small sample of our extensive. Allen bradley heater elements. Thermal overload heaters allen bradley cutler hammer general electric siemens ite square d.

Heater element selection the full load amps listed in the tables are to be used for heater element selection. Allen bradley motor starter thermal overload heater units. Bulletin 592 eutectic alloy overload relays are thermal type devices. For application regarding class 10 and 30 overload relays consult local allen bradley office.

Motor flc a thermal unit number max. This provides class 20. 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. Type w heater elements for bulletin 509 starters table 150.

The rating of the relay in amperes at 40 c is 115 of the full load. 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. Allen bradley standard overload relay protection is provided using type w heater elements for the 500 line. The trip free mechanism provides overload protection even when the reset button is pressed.

A class 30 overload relay will trip in 30 seconds or less at a current equal to 600 percent of its rating. Southland electrical supply is not an authorized distributor for allen bradley asea brown boveri benshaw bryant bussmann control techniques control technology. When used with the proper short circuit protection these relays protect the motor motor controller and power wiring against overheating due to excessive overcurrents. A class 20 overload relay will trip in 20 seconds or less at a current equal to 600 percent of its rating.