Recommended ITE MCP Type ETI Selection: 3ø 60Hz Squirrel Cage Motors
MCP Selection
G7
Siemens Energy & Automation, Inc. 1000 McKee Street Batavia, Illinois 60510
SFIM-7002A-0901
Section G, September, 2001
HP
0.9
2
1.3
2
1.7
2
0
2.4
3
2.7
3
3.9
5
6.1 10
1
9.0 25
11.0 25
17.0 30
2
22
40
27
40
32
50
3
41
50
52 100
62 100
4
77 125
99 150
125 250
5
144 250
192 250
242 400
6
289 400
336 600
382 600
St
ar
ter
Siz
e
FL
A
MCP
575V 60Hz
½
¾
1
1½
2
3
5
7½
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300
350
400
1.1
2
1.6
3
2.1
3
0
3
5
3.4
5
4.8 10
7.6
10
1
11.0 25
14
30
21
40
2
27
40
34
50
40
50
3
52 100
65 100
77 100
4
96 125
124 150
156 250
5
180 250
240 400
302 400
6
361 600
414 600
477 600
St
ar
ter
Siz
e
FL
A
MCP
460V 60Hz
0.81 1
1.21 2
2
3
0
2.5
3
3.5
5
5
10
7.5
10
1
11.0 25
14
30
21
40
2
28
40
35
50
40
50
3
55 100
64 100
80 125
4
100 150
135 250
165 250
5
200 250
260 400
325 400
6
385 600
450 600
500 600
St
ar
ter
Siz
e
FL
A
MCP
415V 50Hz
1.3
2
1.8
3
2.3
3
0
3.3
5
4.3
5
6.1 10
9.7 25
1
14
25
18
30
27
40
2
34
50
44
50
51 100
3
66 100
83 125
103 150
4
128 250
165 250
208 250
5
240 400
320 400
403 600
6
532 800
620 800
709 800
St
ar
ter
Siz
e
FL
A
MCP
380V 50Hz
2
3
3.2
5
0
4.2
5
6
10
6.8 10
9.6 25
1
15.2 30
22
40
2
28
40
42
50
54 100
3
68 100
80 125
4
104 150
130 150
154 250
5
192 250
248 400
312 400
6
360 400
480 600
St
ar
ter
Siz
e
FL
A
MCP
230V 60Hz
2.4
3
3.5
5
0
4.6 10
6.6 10
7.5
10
10.6 25
1
16.7 30
24.2 40
2
30.8 50
46.2 100
3
59.4 100
74.8 125
4
88 125
114 150
143 250
5
169 250
211 400
273 400
6
343 600
396 600
St
ar
ter
Siz
e
FL
A
MCP
208V 60Hz
2.5
3
3.7
5
0
4.8 10
6.9 10
7.8
25
11.0 25
1
17.5 30
25.3 40
2
32.2 50
48.3 100
3
62.1 100
78.2 125
4
92 125
120 250
150 250
5
177 250
221 400
285 400
6
359 600
414 600
St
ar
ter
Siz
e
FL
A
MCP
HP
½
¾
1
1½
2
3
5
7½
10
15
20
25
30
40
50
60
75
100
125
150
200
250
300
350
400
FLA per NEC table 430-150 1996. (Use to size heater coil. Use motor nameplate data or table on page G12.)
MCP size meets NEC requirements per article 430-110 115% FLA min. continuous amps.
MCP trip ranges are selected to meet maximum settings per NEC table 430-152 and exception C. Art. 430-52. MSCPs are fac-
tory set at minimum and can be set to a maximum of 1300% of motor FLA per NEC 430-52.
Above ratings will not exceed maximum size allowed to protect heater coil for standard motor FLAs. Maximum ratings shown
on heater coil selection charts are not to be exceeded.
Do not use this chart for part winding starters. Use thermal magnetic breaker or fuse for short circuit protection.
If high efficiency design E or B motors are used, contact factory for circuit breaker selection.
200V 60Hz
Summary of Contents for TIASTAR SFIM-70020
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