Document 7OYVayzVVNjGG1LvQ6R7E1zaE

86 a! SAFETY SWITCHES a= I-- CQzK HqW DqW oS-J "oS2 o--I JO 00 0 @ Selection Table For Motor Branch Circuits Cutler-Hammer Catalog Numbers of proper switches for use with motors based on using standard types of fuses as specified by the fusing tables of the National Electrical Code. The table below is based on the ratings in horsepower of switches with stand ard types of fuses as covered by N. E. C. fusing tables. For motors larger than 50 Hp switches (non-hp rated switches) may be used in accordance with Article 430--109 d, 1962 N. E. C. and may be selected as follows: Fusible--Based on maximum fuse values as shown in Table 430--146, 1962 N. E. C. for standard fuses but the switch rating should be at least 25% in excess of the motor load full current. Non-Fusible--The switch rating should be at least 115% of the motor full load current. NEMA recommends the selection of fusible switches rated at least 50% in excess of load, especially for continuous duty. "g 1 Q_ WQ o" o. CO UxJ ^< U5<C^J > --} CO jcis UJ O zo 1-- s OS Motor Hp V4-3 5 m 10 Squirrel Cage and Synchronous X-Line resis. and react. starting 4105H301 4105H302 041O5H3O2 4105H303 Catalog Number 4105 Catalog Number 4131 or 4143 Squirrel Cage and Synchronous Autotrans. start, and high react. starting Wound Rotor Squirrel Cage and Synchronous X-Line resis. and react. starting Squirrel Cage and Synchronous Autotrans. start, and high react starting Wound Rotor FUSIBLE SAFETY SWITCHES FOR 220 VOLT, 3 PHASE MOTORS 4105H301 4105H302 4105H302 4105H303 4105H301 O 4105H302 4105H302 0 4105H303 4131H301 4143H301 4131H302 4143H302 04131H3O2 4143H302 4131H303 4143H303 4131H3014143H301 4131H301 4143H301 4131H302 4143H302 O4131H302 4143H302 4131H302 4143H302 4131H302 4143H302 4131H303 4143H303 O4131H303 4143H303 15 . 041O5H3O3 20 4105H304 25 4105H304 30 O4105H305 4105H303 4105H304 4105H304 O4105H305 4105H303 4105H304 4105H304 0 4105H305 04131H3O3 4143H303 4131H304 4143H304 4131H304 4143H304 0 4131H305 4131H303 4143H303 4131H304 4143H304 4131H304 4143H304 O 4131H305 4131H303 4143H303 4131H304 4143H304 4143H304 4131H304 O4131H305 40 4105H305 4105H305 O4105H305 4131H305 0 4131H305 O4131H305 50 4105H305 4105H305 O4105H305 4131H305 4131H305 O4131H305 60 4105H306 4105H305 4105H305 4131H306 4131H305 4131H305 75 4105H306 4105H305 4105H305 4131H306 4131H305 , 4131H305 100 4105H306 4105H305 4131H306 4131H305 125 4105H306 4131H306 150 4105H306 4131H306 FUSIBLE SWITCHES FOR 220 VOLT, 3 PHASE MOTORS--ON 3 PHASE LINES WITH 1 PHASE GROUNDED Vi-3 5 Wi 10 4105H341 4105H342 041O5H342 4105H343 4105H341 4105H342 4105H342 4105H343 4105H341 0 4105H342 4105H342 O4105H343 4131H341 4131H342 04131H342 4131H343 4131H341 4131H342 4131H342 4131H343 4131H341 0 4131H342 4131H342 4131H343 15 041O5H343 20 4105H344 25 4105H344 30 4105H345 4105H343 4105H344 4105H344 4105H345 4105H343 4105H344 4105H344 O4105H345 04131H343 4131H344 4131H344 4131H345 4131H343 4131H344 4131H344 04131H345 4131H343 4131H344 4131H344 0 4131H345 40 4105H345 0 4105H345 4105H345 4I31H345 04131H345 04131H345 50 4105H345 0 4105H345 4105H345 4131H345 4131H345 0 4131H345 . 60 4105H346 75 . 4105H346 4105H345 4105H345 4105H345 4105H345 4131H346 4131H346 4131H345 4131H345 4131H345 4131H345 100 4105H346 4105H345 4131H346 4131H345 125 4105H346 4131H346 150 4105H346 4131H346 VS-5 m 10 15 20 25 30 40 4105H311 4105H312 4105H312 4105H312 4105H313 4105H313 O4105H314 4105H314 , FUSIBLE SAFETY SWITCHES FOR 440 VOLT, 3 PHASE MC)TORS 4105H311 4105H312 4105H312 4105H312 4105H311 O4105H312 O4105H312 O4105H312 4131H311 4131H312 4131H312 4131H312 4131H311 O 4131H312 4131H312 4131H312 0 4105H313 4105H313 0 4105H314 0 4105H314 0 4105H313 4150H313 4105H314 0 4105H314 4131H313 4131H313 04131H314 4131H314 04131H313 4131H313 04131H314 4131H314 4131H311 . 0 4131H312 0 4131H312 4131H312 0 4131H313 O 4131H313 0 4131H314 0 4131H314 50 4105H314 4105H314 0 4105H314 4131H314 4131H314 0 4131H314 60 4105H315 4105H314 4105H314 75 4105H315 4105H314 4105H314 100 4105H315 4105H315 4105H314 4131H314 4131H314 4131H314 4131H314 4131H314 125 4105H316 4105H315 4105H315 150 4105H316 4105H315 4105H315 200 4105H316 4105H315 NOTE: Switches above 50 Hp are intended for disconnect service only. OTo comply with National Electrical Code requirements on motor branch circuit fusing, fuse reducers may be required with these switches. 0For squirrel cage and synchronous motors (full voltage, reactor and resistor starting) the next larger size switch should be used if the maximum permitted fusing is desired. CUTLER'HAMMER 86