Allen Bradley Heater Element Selection Chart

Overload relay heater tables selection of heater elements for overload relays general formula approximate full load amps for other motors 208 volt full load amp p 230 volt current u 110 2 phase fla p 0 866 u the 3 phase fla 2 phase 3 wire current in common wire p 1 41 u that in. Bulletin 2100 heater element selection table for bulletin 2113 size 1 and 2 startfrs type w heater elements. 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.

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The heater element selection tables are based on a 40 c ambient temperature.

Allen bradley heater element selection chart.

The old style type n heater elements are used with bulletin 709 motor starters and overload relay blocks. Thermal overload heaters allen bradley cutler hammer general electric siemens ite square d westinghouse. In other words there is no correction factor at 40 c. Next in this heater element selection process is to adjust the motor nameplate full load current flc by the c f.

Southland electrical supply is not an authorized distributor for allen bradley asea brown boveri benshaw bryant bussmann control techniques control technology inc. Consult local allen bradley office. This means the correction factor for a 40 c is 1 00. Siæ 1 0 18 020 02 0 24 027 0 30 0 33 0 36 0 40 0 44.

The rating of the relay in amperes at 40 c is 115 of the full load amps listed for the heater type no. Consult local allen bradley office. Heater type number wii w12 w13 w14 w15 w16 w17 w18 w20 w21 w24 we w26 w27 w28 full load am s. Master page for square d heater element selection tables.

Bulletin 505 full vole reversing overload relay heater tables overload relay heater tables p38 allen bradley heater elements motor control overload relayssizing heater elements for motor startersw heater chart trinitysquare d manual motor starter heater chartpractical hinist largest manufacturing technology forum on theoverload relay heater tablesmotor control overload relaysoverload relay. Heater element to be used. Heater element selection the full load amps listed in the tables are to be used for heater element selection.