Siemens TIASTAR, Instruction Manual

Page: 41 / 44

Heaters shown in the table provide a maxi-
mum trip rating of 125% of the motor name-
plate amperes, which is suitable for 40°C
motors. For all other motors select heaters
one code number lower than specified in the
table, which
give a maximum trip rating of approximately
115%.
The tripping current of any heater in a 40°C
ambient is 25% greater than the lower value
of motor amperes shown in the table.
Starters do not provide protection from short
circuits. A protective device should be pro-
vided in accordance with the NEC (CEC in
Canada) and not exceed the values shown in
the table.
Note: If the rating specified is not a standard
size for the circuit breaker manufacturer, use
the next largest size.
Hazardous Voltage.
Can cause death or serious
personal injury.
Automatic reset will continue
to reset on two-wire control.
When not desired, use three-
wire control. Do not use manu-
al trip button when relay is set
in automatic reset position.
Siemens Energy & Automation, Inc. 41
E .Standard Trip. Heater Elements for Ambient Temp. Comp. Bimetal Relays
Full Load Heater Max. Rat.
Mo. Amps. Code of Prot.
Min. Max. No. Device*
Size 0 & 1
0.67 0.72 E14 3
0.73 0.80 E16 3
0.81 0.85 E17 3
0.86 0.92 E18 3
0.93 0.99 E19 3
1.00 1.08 E23 3
1.09 1.23 E24 3
1.24 1.37 E26 3
1.38 1.54 E27 3
1.55 1.69 E28 3
1.70 1.80 E29 3
1.81 1.94 E31 3
1.95 2.07 E32 3
2.08 2.26 E33 3
2.27 2.54 E34 7
2.55 2.69 E36 7
2.70 2.88 E37 7
2.89 3.14 E38 7
3.15 3.40 E39 7
3.41 3.81 E41 7
3.82 4.26 E42 7
4.27 4.62 E44 7
4.63 5.09 E46 7
5.10 5.61 E47 7
5.62 5.91 E48 7
5.92 6.15 E49 15
6.16 6.70 E50 15
6.71 7.54 E51 15
7.55 8.29 E52 15
8.30 8.99 E53 15
9.00 9.85 E54 15
9.86 10.4 E55 15
10.5 12.0 E56 15
12.1 13.6 E57 30
Full Load Heater Max. Rat.
Mo. Amps. Code of Prot.
Min. Max. No. Device*
Size 13/4
2.27 2.54 E34 7
2.55 2.69 E36 7
2.70 2.88 E37 7
2.89 3.14 E38 7
3.15 3.40 E39 7
3.41 3.81 E41 7
3.82 4.25 E42 7
4.26 4.62 E44 7
4.63 5.09 E46 7
5.10 5.61 E47 7
5.62 5.91 E48 7
5.92 6.15 E49 15
6.16 6.70 E50 15
6.71 7.54 E51 15
7.55 8.29 E52 15
8.30 8.99 E53 15
9.00 9.85 E54 15
9.86 10.4 E55 15
10.5 12.0 E56 15
12.1 13.6 E57 30
13.7 15.6 E60 30
15.7 17.0 E61 30
17.1 19.4 E62 30
19.5 20.9 E65 30
21.0 22.2 E66 30
22.3 25.3 E67 30
25.4 26.9 E69 50
27.0 30.2 E70 50
30.3 33.3 E72 50
D25556-3
Size 2 & 21/2
10.5 12.0 E56 50
12.1 13.6 E57 50
13.7 15.6 E60 50
15.7 17.1 E61 50
17.2 19.4 E62 50
19.5 20.9 E65 50
21.0 22.2 E66 50
22.3 25.3 E67 50
25.4 26.9 E69 50
27.0 30.2 E70 50
30.3 33.3 E72 50
33.4 35.3 E73 50
35.4 41.5 E74 50
41.6 45.0 E76 1 00
Full Load Heater Max. Rat.
Mo. Amps. Code of Prot.
Min. Max. No. Device*
Size 3 & 31/2
30.0 33.5 E69 100
33.6 36.4 E70 100
36.5 39.6 E71 100
39.7 43.6 E73 100
43.7 46.5 E73A 100
46.6 51.6 E74 100
51.7 54.4 E76 100
54.5 58.0 E77 100
58.1 63.0 E78 100
63.1 67.7 E79 100
67.8 72.4 E80 100
72.5 80.0 E94 100
Full Load Heater Max. Rat.
Mo. Amps. Code of Prot.
Min. Max. No. Device*
Size 41/2 & 5
88.0 98.0 E27 250
98.1 108 E28 250
109 114 E29 250
115 122 E31 250
123 130 E32 250
131 140 E33 250
141 155 E34 250
156 166 E36 250
167 177 E37 250
178 193 E38 400
13.7 15.8 E60 30
15.7 17.0 E61 30
17.1 18.4 E62 30
18.5 19.4 E65 30
19.5 21.3 E66 30
21.4 24.4 E67 30
24.5 25.9 E69 30
26.0 26.0 E70 30
Size 1 only
D25385-7
Size 21/2 only
D26069-5
Size 4
56.9 60.9 E89 150
61.0 63.9 E91 150
64.0 67.7 E92 150
67.8 72.4 E93 150
72.5 77.7 E94 150
77.8 85.9 E96 150
86.0 91.9 E97 150
92.0 96.7 E98 150
96.8 105 E99 150
106 115 E103 150
116 130 E104 150
D36024-2
Size 31/2 only
D26801-3
80.1 88.1 E96 100
88.2 91.5 E97 150
91.6 96.8 E98 150
96.9 99.0 E99 150
99.1 108 E101 150
Size 6
166 195 E27 400
196 217 E28 400
218 229 E29 400
230 245 E31 400
246 261 E32 400
262 281 E33 400
282 311 E34 400
312 331 E36 400
332 355 E37 400
356 387 E38 600
388 419 E39 600
420 467 E41 600
468 500 E42 600
D25665-3
194 209 E39 400
210 233 E41 400
234 248 E42 400
Size 5 only
D25651-5
Wye-delta starters: If the motor name-
plate shows the full load delta line current
only, divide this value by 1.73 or multiply by
.58 to select the proper heater rating.
*Ratings specified are for instantaneous
trip circuit breakers.
Maximum current rating for thermalmag-
netic circuit breakers is 250% of maximum
heater FLA.
Maximum current rating of fuses is:
a. 150% of maximum heater FLA for
Class R, K, or L (time delay).
b. 250% of maximum heater FLA for
Class K or L (non-time delay).
c. 300% of maximum heater FLA for
Class J (non-time delay).
If the calculated rating is between standard
sizes, the next larger size may be used. Fuse
size may not exceed switch size.