Technical data

March 2009
33-36
For more information visit: www.eaton.com CA08102001E
NEMA Contactors & Starters
33
IT. Electro-Mechanical — Enclosed
Combination Starters — Fusible and Non-fusible
Table 33-49. Class ECT17 — Combination Reversing Starter — Non-fusible Disconnect

All IT. Contactors and Starters are furnished with 24V DC coil and control power supply. The eighth digit Q denotes separate 24V DC control source.
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The Catalog Numbers listed in the Type 4X column are for Type 4X 304-Grade Stainless Steel, as indicated by the seventh digit 4. Example:
ECT170
4QAA. To order Type 4X 316-Grade Stainless Steel, change that digit to 9. To order Type 4 Painted Steel, change that digit to 3. To order Non-
metallic, change that digit to
5. For details on these Alternate Enclosures, see PG03300001E.
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A “_” denotes Catalog Numbers are incomplete without the Solid-State Overload Range Code. To complete the Catalog Number, select the appropriate
Code from the following table:
Motor
Voltage
Max.
hp
Coil

Voltage
Disconnect 3-Pole Type 1 3-Pole Type 3R 3-Pole Type 4X
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3-Pole Type 12 3-Pole Component
Starter (Open)
Catalog
Number

Catalog
Number

Catalog
Number

Catalog
Number

Catalog
Number

NEMA Size 0
—
200/208
230/240
460/480
575/600
380/50 Hz
—
3
3
5
5
5
24V DC 30A ECT1701QAA-_
ECT1701EAA-_
ECT1701BAA-_
ECT1701CAA-_
ECT1701DAA-_
ECT1701LAA-_
ECT1702QAA-_
ECT1702EAA-_
ECT1702BAA-_
ECT1702CAA-_
ECT1702DAA-_
ECT1702LAA-_
ECT1704QAA-_
ECT1704EAA-_
ECT1704BAA-_
ECT1704CAA-_
ECT1704DAA-_
ECT1704LAA-_
ECT1708QAA-_
ECT1708EAA-_
ECT1708BAA-_
ECT1708CAA-_
ECT1708DAA-_
ECT1708LAA-_
N501BS0_3A
NEMA Size 1
—
200/208
230/240
460/480
575/600
380/50 Hz
—
7-1/2
7-1/2
10
10
10
24V DC 30A ECT1711QAA-_
ECT1711EAA-_
ECT1711BAA-_
ECT1711CAA-_
ECT1711DAA-_
ECT1711LAA-_
ECT1712QAA-_
ECT1712EAA-_
ECT1712BAA-_
ECT1712CAA-_
ECT1712DAA-_
ECT1712LAA-_
ECT1714QAA-_
ECT1714EAA-_
ECT1714BAA-_
ECT1714CAA-_
ECT1714DAA-_
ECT1714LAA-_
ECT1718QAA-_
ECT1718EAA-_
ECT1718BAA-_
ECT1718CAA-_
ECT1718DAA-_
ECT1718LAA-_
N501CS1_3A
NEMA Size 2
—
200/208
230/240
460/480
575/600
380/50 Hz
—
10
15
25
25
25
24V DC 60A ECT1721QAA-K
ECT1721EAA-K
ECT1721BAA-K
ECT1721CAA-K
ECT1721DAA-K
ECT1721LAA-K
ECT1722QAA-K
ECT1722EAA-K
ECT1722BAA-K
ECT1722CAA-K
ECT1722DAA-K
ECT1722LAA-K
ECT1724QAA-K
ECT1724EAA-K
ECT1724BAA-K
ECT1724CAA-K
ECT1724DAA-K
ECT1724LAA-K
ECT1728QAA-K
ECT1728EAA-K
ECT1728BAA-K
ECT1728CAA-K
ECT1728DAA-K
ECT1728LAA-K
N501DS2_3A
NEMA Size 3
—
200/208
230/240
460/480
575/600
380/50 Hz
—
25
30
50
50
50
24V DC 100A ECT1731QAA-M
ECT1731EAA-M
ECT1731BAA-M
ECT1731CAA-M
ECT1731DAA-M
ECT1731LAA-M
ECT1732QAA-M
ECT1732EAA-M
ECT1732BAA-M
ECT1732CAA-M
ECT1732DAA-M
ECT1732LAA-M
ECT1734QAA-M
ECT1734EAA-M
ECT1734BAA-M
ECT1734CAA-M
ECT1734DAA-M
ECT1734LAA-M
ECT1738QAA-M
ECT1738EAA-M
ECT1738BAA-M
ECT1738CAA-M
ECT1738DAA-M
ECT1738LAA-M
N501ES3_3A
NEMA Size 4
—
200/208
230/240
460/480
575/600
380/50 Hz
—
40
50
100
100
75
24V DC 200A ECT1741QAA-P
ECT1741EAA-P
ECT1741BAA-P
ECT1741CAA-P
ECT1741DAA-P
ECT1741LAA-P
ECT1742QAA-P
ECT1742EAA-P
ECT1742BAA-P
ECT1742CAA-P
ECT1742DAA-P
ECT1742LAA-P
ECT1744QAA-P
ECT1744EAA-P
ECT1744BAA-P
ECT1744CAA-P
ECT1744DAA-P
ECT1744LAA-P
ECT1748QAA-P
ECT1748EAA-P
ECT1748BAA-P
ECT1748CAA-P
ECT1748DAA-P
ECT1748LAA-P
N501ES4_3A
NEMA Size 5
—
200/208
230/240
460/480
575/600
380/50 Hz
—
75
100
200
200
150
24V DC 400A ECT1751QAA-S
ECT1751EAA-S
ECT1751BAA-S
ECT1751CAA-S
ECT1751DAA-S
ECT1751LAA-S
ECT1752QAA-S
ECT1752EAA-S
ECT1752BAA-S
ECT1752CAA-S
ECT1752DAA-S
ECT1752LAA-S
ECT1754QAA-S
ECT1754EAA-S
ECT1754BAA-S
ECT1754CAA-S
ECT1754DAA-S
ECT1754LAA-S
ECT1758QAA-S
ECT1758EAA-S
ECT1758BAA-S
ECT1758CAA-S
ECT1758DAA-S
ECT1758LAA-S
N501FS5_3A
FLA Range Size
00 012345
.25 – .80
.59 – 1.9
1.4 – 4.4
2.8 – 9.0
A
B
C
D
A
B
C
D
A
B
C
D
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5.0 – 16
6.3 – 20
8.4 – 27
10 – 32
14 – 45
16 – 50
—
—
—
—
—
—
—
G
—
J
—
—
F
—
H
—
—
L
—
—
—
—
K
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
28 – 90
31 – 100
42 – 135
63 – 200
84 – 270
131 – 420
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
N
—
—
—
—
M
—
—
—
—
—
—
—
P
R
—
—
—
—
—
—
S
T
Cover Control . . . . . . . . . . . . . . . . . . . . Page 33-27
Wiring Diagrams . . . . . . . . . . . . . . . . . Page 33-41
Dimensions . . . . . . . . . . . . . . . . . . . . . . PG03300001E
Accessories . . . . . . . . . . . . . . . . . . . . . PG03300001E
Renewal Parts . . . . . . . . . . . . . . . . . . . PG03300001E
Technical Data . . . . . . . . . . . . . . . . . . . PG03300001E