Technical data

March 2009
CA08102001E For more information visit: www.eaton.com
33-61
NEMA Contactors & Starters
33
IT. Manual and Combination Motor Controllers
IT. Manual and Combination Motor Controllers – NEMA Contactors
UL 508 Type F CMC with NEMA
Size 1 Contactor
When Ordering Specify —
■ All Non-reversing and Reversing
motor controllers are selected based
on the overload current range
required for a given motor. This
current range is determined from
the motor Full Load Ampere rating
and Motor Service Factor usually
found on the motor nameplate.
■ For motors with service factors less
than 1.15, multiply the motor FLA by
.92 to select the appropriate motor
controller. Example: For a motor
having FLA of 20A and a service fac-
tor of 1.0 (20A x .92 = 18.4A) select
Catalog Number N308MNS1X3N.
■ For motors with service factor of
1.15 or greater, use motor name-
plate Full Load Amperes to select
the appropriate motor controller.
Example: For a motor having FLA
of 20A and a service factor of 1.15,
select Catalog Number
N308NNS1X3N.
Instructional Leaflets
See Page 33-52 for Listing.
Table 33-83. IT. UL 508 Type F Open Non-reversing Combination Motor Controllers (A308 Manual Motor Protector + C320WC54 Wiring Connector Link
+ N111C Size 1 IT. NEMA Contactor)

Select motor controller by motor Full Load Amperes. Horsepower ratings are for reference only.

DIN rail mounting. No mounting plate included.
Table 33-84. IT. UL 508 Type F Open Reversing Combination Motor Controllers (A308 Manual Motor Protector + N511C Size 1 IT. NEMA
Reversing Contactor)

Select motor controller by motor Full Load Amperes. Horsepower ratings are for reference only.

Mounting plate included.
Notes —
■ For more information on the use of Line Side Adapters, see Table 33-87, Page 33-63.
■ The A308_MMPs do not require Line Side Adapters.
■ For information on Manual Motor Protectors and Wiring Connector Links refer to Pages 34-294 – 34-299. For IT. NEMA
Contactors, refer to Pages 33-29 and 33-30.
■ The Non-reversing Catalog Number is a composite of the factory assembled Manual Motor Protector, Wiring Connector
Link and the IT. Contactor. E.g. Catalog No. N308LNS1X3N is the combination of A308LN, C320WC54 and N111CS1X3N.
■ The Reversing Catalog Number is a composite of the factory assembled Manual Motor Protector, Mounting Plate and
the IT. Contactor. E.g. Catalog No. N358LNS1X3N is the combination of A308LN and N511CS1X3N.
N308 & N358 — IT. Open Non-reversing
and IT. Reversing Combination Motor
Controllers with NEMA Size 1
Contactor(s)
FLA
Adjustment
Range
Single-Phase
hp Ratings

Three-Phase
hp Ratings

Manual
Motor
Protector
IT. NEMA
Non-reversing
Contactor
Catalog
Number

Price
U.S. $
115V 230V 200V 230V 460V 575V 24V DC
Coil
11 – 16
14 – 20
18 – 25
1
1-1/2
2
3
3
5
5
5
7-1/2
5
7-1/2
10
10
15
20
15
20
25
A308LN
A308MN
A308NN
N111CS1X3N
N111CS1X3N
N111CS1X3N
N308LNS1X3N
N308MNS1X3N
N308NNS1X3N
FLA
Adjustment
Range
Single-Phase
hp Ratings

Three-Phase
hp Ratings

Manual
Motor
Protector
IT. NEMA Reversing
Contactor
Catalog
Number

Price
U.S. $
115V 230V 200V 230V 460V 575V 24V DC
Coil
11 – 16
14 – 20
18 – 25
1
1-1/2
2
3
3
5
5
5
7-1/2
5
7-1/2
10
10
15
20
15
20
25
A308LN
A308MN
A308NN
N511CS1X3N
N511CS1X3N
N511CS1X3N
N358LNS1X3N
N358MNS1X3N
N358NNS1X3N
Accessories . . . . . . . . . . . . . . Page 33-63
Dimensions. . . . . . . . . . . . . . . Pages 33-65, 33-67
Discount Symbol . . . . . . . . . . 1CD1