OEM: When controller is mounted, discard either Table 151 or Table 154 before attaching lower portion of the instruction sheet to your equipment. Table 151 should remain when the controller is mounted in a small enclusure(a volume of 860 cubic inches or less), or in the proximity of heat producing components which have the same effect as a small enclosure. Select Table 154 for use on open panels or in very large enclosures. BULLETIN 520, SIZE 2, 3-PHASE, heater Table 151 element selection table for controllers with Table 154 two Bulletin 592 3-pole overload relays. Heater Full Heater Full Type Load WARNING:To provide continued protec- Type Load No. Amps. tion against fire or shock hazard, the No. Amps. complete overload relay must be replaced W50 8.45 if burnout of any heater element occurs. W50 8.58 W51 9.32 W51 9.48 W52 10.3 W52 10.6 W53 11.3 IMPORTANT: When ordering heater W53 11.7 W54 12.3 elements for this controller, always specify W54 12.8 W55 13.4 the desired “Heater Type No.’ W55 14.1 W56 14.5 W56 15.4 W57 15.8 Motors Rated for Continuous Duty with W57 16.9 W58 16.7 Marked Service Factor Not Less Than 1.15 or W58 18.3 W59 18.1 Marked Temperature Rise Not Over 40°C. W59 19.9 W60 20.0 Select the ”Heater Type No.” with the listed W60 21.9 W61 22.0 “Full Load Amps.” nearest the full load W61 24.2 W62 24.5 current value shown on the motor W62 26.8 W63 27.3 nameplate when the ambient temperature W63 29.6 W64 29.2 at the controller and the motor is the same. W64 32.5 W65 31.5 If the ambient temperature at the W65 35.0 W66 34.5 controller is higher than at the motor and W66 37.5 W67 37.0 the nameplate full load current is between W67 41.0 W68 39.5 the values listed, select the “Heater Type W68 45.0 W69 42.5 No.” with the higher value 1 . If the W70 46.0 ambient temperature at the controller is lower than at the motor and the nameplate full load current is between the values listed, select the “Heater Type No.” with the lower value 1 . 1 When temperature differece exceeds 10°C (18°F), consult local Allen-Bradley Office. All Other Motors Rated for Continuous Duty (includes Motors With Marked Service Factor Of 1.0) Select the “Heater Type No.” one rating smaller than determined by the above rules. This will provide protection at current levels 10% lower. Motors Rated For Intermittent Duty: Consult Local Allen-Bradley Office. The rating of the relay at 40°C is 115% of the “Full Load Amps.” listed for the “Heater Type No.” Select the motor branch circuit overcurrent protection in accordance with the National Electrical Code. RENEWAL PARTS LIST Overload Relay without N.O. Auxiliary Contact (Less Elements) . Part No. 40185-800-01 Auxilary Contact for Overload Relay (Normally Open) . Catalog No 595-A02 Single Pole Contact Kit . Part No. 40420-322-51 Power Pole Adder Kit (including Load Balancer) Size 2 (Normally Open Contact) . Catalog No. 599-P2A Operating Coil . (Specify number and rating on coil label.) When ordering, specify Catalog Number and Series Letter of the device. 40050-515-02 (B) ALLEN-BRADLEY Printed in U.S.A. Milwaukee, Wisconsin 53204 DieÊline doesÊnotÊprint This is a converted file. Please check before making the next change..