Technical data

March 2009
33-56
For more information visit: www.eaton.com CA08102001E
NEMA Contactors & Starters
33
IT. Manual and Combination Motor Controllers
IT. Manual and Combination Motor Controllers – NEMA Contactors
MMC with NEMA Size 0 Contactor
for Group Motor Applications
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 12.5A and a service
factor of 1.0 (12.5A x .92 = 11.5A)
select Catalog Number
MN307WNS0X3N.
■ 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 12.5A and a service factor of 1.15,
select Catalog Number
MN307XNS0X3N.
Instructional Leaflets
See Page 33-52 for Listing.
Table 33-76. IT. Open Non-reversing Manual Motor Controllers (A307 Manual Motor Protector + C320WC45IT Wiring Connector Link + N111B Size 0
IT. NEMA Contactor) — For Group Motor Applications

Select motor controller by motor Full Load Amperes. Horsepower ratings are for reference only.

DIN rail mounting. No mounting plate included.
Table 33-77. IT. Open Reversing Manual Motor Controllers (A307 Manual Motor Protector + N511B Size 0 IT. NEMA Reversing Contactor) —
For Group Motor Applications

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.
■ 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. MN307VNS0X3N is the combination of A307VN, C320WC45IT and N111BS0X3N.
■ The Reversing Catalog Number is a composite of the factory assembled Manual Motor Protector, Mounting Plate and
the IT. Contactor. E.g. Catalog No. MN357VNS0X3N is the combination of A307VN and N511BS0X3N.
MN307 — IT. Open Non-reversing
Manual Motor Controller with NEMA
Size 0 FVNR Contactor
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
7.0 – 10
9.0 – 12.5
11 – 16
1/2
1/2
1
1-1/2
2
3
3
3
5
3
3
5
7-1/2
7-1/2
10
10
10
15
A307VN
A307WN
A307XN
N111BS0X3N
N111BS0X3N
N111BS0X3N
MN307VNS0X3N
MN307WNS0X3N
MN307XNS0X3N
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
7.0 – 10
9.0 – 12.5
11 – 16
1/2
1/2
1
1-1/2
2
3
3
3
5
3
3
5
7-1/2
7-1/2
10
10
10
15
A307VN
A307WN
A307XN
N511BS0X3N
N511BS0X3N
N511BS0X3N
MN357VNS0X3N
MN357WNS0X3N
MN357XNS0X3N
Accessories . . . . . . . . . . . . . . Page 33-63
Dimensions . . . . . . . . . . . . . . . Pages 33-64, 33-66
Discount Symbol . . . . . . . . . . 1CD1