Appleton EDS Series, N1 Series, Contender Series Instruction Sheet

Instruction Sheet

EDS, N1 and Contender Series

Manual Motor Starter Heater Selection Table

503406

Warning:

Electrical power must be turned OFF before and
during installation of heater. Failure to follow
safety instructions may cause ignition of hazard­ous atmospheres resulting in serious personal
injury and/or property damage.

Heater Selection Guideline

The “Full Load Motor Current” listed on Table 1 and 2
are ratings which determine the proper heater element
that should be used with in conjunction with the motor
starter. Refer to the motor nameplate for its full load
motor current. For normal operating condition, we rec­ommend that heater element selected should have a
capacity of 20 to 25% greater than the full load motor
current at 40˚C ambient temperature. For 50˚C rise, a
heater not greater than 115% of full load current
should be selected.

The above information is an approximation only due to
the difference between full load currents of various
motor manufacturer of the same size motor.

If selection of heater element is uncertain as might be
in the case of a motor subject to frequent starting and
intermittent load, it is advisable to contact the starter
manufacturer giving full particulars, such as motor
horsepower, voltage, phase cycles or other pertinent
data that may aid in the selection of proper heater ele­ment.

NOTE: Use copper conductors only rated at 60˚C or
75˚C.

Warning:

Tripping or opening of the circuit breaker or fuse(s)
could be an indication that a fault current has been
interrupted. If such a case happened, the starter must
be mechanically and electrically inspected, examined
and replaced if damaged. This action will provide con­tinued protection against fire or shock hazard. If heater
burnouts occurs, the complete starter and heater must
be replaced.

Table 1

(Westinghouse Heaters)

Full Load EDS/N1 Contender
Motor Current Series Series

Amperes Add Suffix Add Suffix

0.43 -WH1 -W1

0.48 -WH2 -W2

0.53 -WH3 -W3

0.58 -WH4 -W4

0.64 -WH5 -W5

0.71 -WH6 -W6

0.78 -WH7 -W7

0.87 -WH8 -W8

0.95 -WH9 -W9

1.03 -WH10 -W10

1.15 -WH11 -W11

1.27 -WH12 -W12

1.35 -WH13 -W13

1.51 -WH14 -W14

1.67 -WH15 -W15

1.83 -WH16 -W16

1.99 -WH17 -W17

2.23 -WH18 -W18

2.47 -WH19 -W19

2.71 -WH20 -W20

2.95 -WH21 -W21

3.27 -WH22 -W22

3.59 -WH23 -W23

3.99 -WH24 -W24

4.39 -WH25 -W25

4.79 -WH26 -W26

5.26 -WH27 -W27

5.83 -WH28 -W28

6.39 -WH29 -W29

7.03 -WH30 -W30

7.74 -WH31 -W31

8.46 -WH32 -W32

9.35 -WH33 -W33

10.30 -WH34 -W34

11.35 -WH35 -W35

12.47 -WH36 -W36

13.67 -WH37 -W37

15.12 -WH38 -W38

16.00 -WH39 -W39

Table 2

(Allen-Bradley Heaters)

Full Load EDS/N1 Contender
Motor Current Series Series

Amperes Add Suffix Add Suffix

0.17 -AB1 -P1

0.21 -AB2 -P2

0.25 -AB3 -P3

0.32 -AB4 -P4

0.39 -AB5 -P5

0.46 -AB6 -P6

0.57 -AB7 -P7

0.71 -AB8 -P8

0.79 -AB9 -P9

0.87 -AB10 -P10

0.98 -AB11 -P11

1.08 -AB12 -P12

1.19 -AB13 -P13

1.30 -AB14 -P14

1.43 -AB15 -P15

1.58 -AB16 -P16

1.75 -AB17 -P17

1.88 -AB18 -P18

2.13 -AB19 -P19

2.40 -AB20 -P20

2.58 -AB21 -P21

2.92 -AB22 -P22

3.09 -AB23 -P23

3.32 -AB24 -P24

3.77 -AB25 -P25

4.16 -AB26 -P26

4.51 -AB27 -P27

4.93 -AB28 -P28

5.43 -AB29 -P29

6.03 -AB30 -P30

6.83 -AB31 -P31

7.72 -AB32 -P32

8.24 -AB33 -P33

8.90 -AB34 -P34

9.60 -AB35 -P35

10.80 -AB36 -P36

12.00 -AB37 -P37

13.50 -AB38 -P38

15.20 -AB39 -P39

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