Product Bulletin for
30 Amp and 40 Amp
Motor Starter Switches
Industrial Grade
Manual Motor Controllers
“Suitable as Motor Disconnect”
30A and 40A Motor Starter Switches for
Single Phase and Three Phase Applications
Leviton’s line of industrial grade AC Manual Motor Controllers provide safe, reliable
control of a variety of motor loads. Typical applications include manual ON/OFF
switching control of bottling lines, pumping machines, air compressors and other heavy
manufacturing equipment. These Motor Controllers are available for both single-phase
and three-phase applications, with a continuous current rating at all voltages up to 600V
AC and maximum horsepower ratings of 20HP.
In addition, they are listed UL 508 “Suitable as Motor
Disconnect”. This also provides for lowering facility costs
(when compared to installation of UL98 Disconnect Switches).
Features include:
All molded parts are thermoplastic to resist impact, chemicals, temperature, tracking and arcing
Cam-driven mechanism enhances fast-make/slow-break
Silver- Alloy contacts for maximum conductivity and service life
External clamps accept back and side wiring
Insulating barrier between terminals provide isolation between phases
Nickel-plated brass mounting yoke for superior strength and corrosion resistance
Oversized toggle provides positive actuation, even with gloved hand
Backed by a Limited Ten-Year Warranty
Leviton Manual Motor Controllers are available as either single switches or with enclosures. Available enclosures
include Type 1 Thermoplastic, Type 1 Powder-Coated Metal, or Type 3R Powder-Coated Metal.
®
AC Manual Motor Controller Features
Oversized toggle is capable of withstanding extreme
impact, harsh chemical attack,
and prolonged ultraviolet
exposure
Oversized toggle is easy to
turn ON/OFF with gloved hand
Nickel-plated, brass mounting yoke offers
exceptional strength
and corrosion resistance
Nickel-plated brass
bushings secure
yoke to device
­­­Mounting yoke is permanently
marked with catalog
number, amperage, voltage
and horsepower ratings for
easy identification
#10 triple-drive
nickel-plated terminal
screws facilitate
tightening to proper
torque ranges
Internal chamber
barriers prevent
flash-over between
phases
Impact-resistant
thermoplastic polyester cover and base
External clamps accept back and side wiring for #10AWG solid
copper wire. For #8AWG wire,
remove terminal clamp and use
ring terminal
Specifications
Mechanical Specifications
Electrical Specifications
Dielectric
Voltage-Withstand
2200V AC for 1 minute
Terminal Identification
T1, T2, T3, L1, L2 & L3 marked
on back of device
Overload
50 cycles at 6 times full
rated current
Terminal Accommodation
#10 AWG, #8 AWG
(with ring terminal)
Temperature Rise
50°C maximum at full
rated current
Product Identification
Ratings are permanently
stamped on device strap
Endurance
6000 cycles of inductive
motor type load
Torque
20 inch-pounds
Short Circuit Rating
(Motor Disconnect)
10,000 RMS symmetrical
amps at 600V AC max. when
protected by a 30 A time
delay fuse
Material Specifications
Environmental Specifications
Flammability
UL94 V-0
Operating Temperature
-40ºC to 60ºC
Standards Specifications
NEMA
WD1 & WD6
ANSI
C-73
Thermoplastic Polyester
cULus per UL 508,
CSA C22.2 No. 14
File #E63969
Toggle
Thermoplastic Polyester
NOM
057
Contacts
Silver-Alloy
Terminal Screws
Nickel-Plated Brass
Assembly
Nickel-Plated Brass Bushings
Mounting Yoke
Nickel-Plated Brass
Base
Thermoplastic Polyester
Cover
10 YEAR LIMITED
WARRANTY
Dimensions
0.95
(24.1mm)
0.95
(24.1mm)
2.46
(62.4mm)
2.03
(51.6mm)
3.75
(95.3mm)
1.51
(38.3mm)
1.51
(38.3mm)
0.90
(22.9mm)
0.90
(22.9mm)
2.03
(51.6mm)
2.03
(51.6mm)
2.46
(62.4mm)
0.64
(16.3mm)
2.15
(54.6mm)
5.42 (137.7mm)
4.30 (109.1mm)
4.26 (108.1mm)
1.51
(38.3mm)
0.64
(16.3mm)
2.15
(54.6mm)
1.38
(34.9mm)
1.38
(34.9mm)
2.03
(51.6mm)
2.03
(51.6mm)
1.51
(38.3mm)
1.51
(38.3mm)
0.96
(24.3mm)
0.96
(24.3mm)
6.150
2.03
(51.6mm)
1.51
(38.3mm)
0.90
(22.9mm)
3.75
(95.3mm)
3.75
(95.3mm)
3.75
(95.3mm)
3.75
(95.3mm)
0.90
(22.9mm)
Cat. No. MS403-DS
(dimensions are same for MS402-DS)
3.75
(95.3mm)
Cat. No. MS302-DSS
(dimensions are same for MS303-DSS)
Cat. No. MS302-DS
(dimensions are same for MS303-DS)
2.46
(62.6mm)
2.46
(62.6mm)
Cat. Nos. N3302-DS, N3303-DS, N33NC-DS
5.42 (137.7mm)
5.42 (137.7mm)
5.42 (137.7mm)
PL) (4 PL)HOLE (4 PL)
HOLE (4MOUNTING
MOUNTING
0.25 (6.4mm)
(6.4mm)
0.25
HOLE
MOUNTING
0.25 (6.4mm)
4.30 (109.1mm)
4.30 (109.1mm)
4.30 (109.1mm)
0.07 (1.7mm)
0.07 (1.7mm)0.07 (1.7mm)
1.65 (41.9mm)
1.65 (41.9mm)
1.65 (41.9mm)
4.26 (108.1mm)
4.26 (108.1mm)
4.26 (108.1mm)
3.50
(88.9mm)
3.50
(88.9mm)
3.50
(88.9mm)
6.150
6.150
6.150
0.13 (3.
1/2, 3/4, 1 AND 1 1/4 KNOCKOUTS
3.16 (80.3mm)
3.25 (82.6mm)
2.88 (73.2mm)
4.75
(120.7mm)
0.96
(24.4mm)
0.13 (3.3mm)
0.13 (3.3mm)0.13 (3.3mm)
2.50 (63.5mm)
1.13
(28.7mm)
1.44
(36.6mm)
1.25
(31.8mm)
1.25
(31.8mm)
1.25
(31.8mm)
1/2 AND 3/4 KNOCKOUTS
Cat. Nos. N1302-DS, N1303-DS, N13NC-DS
3.163.16
(80.3mm)
3.16
(80.3mm)
(80.3mm)
3.253.25
(82.6mm)
3.25
(82.6mm)
(82.6mm)
2.502.50
(63.5mm)
2.50
(63.5mm)
1/2, 3/4, 1/2,
1 AND
KNOCKOUTS
(63.5mm)
1/2,
AND 1 1/4 KNOCKOUTS
3/4,111/4
AND
13/4,
1/4 1KNOCKOUTS
(2 PL)
HOLE
MOUNTING
(6.4mm)
0.25
HOLE
MOUNTING
(6.4mm)
0.25
PL)PL)
(2 (2
HOLE
MOUNTING
(6.4mm)
0.25
2.00
(50.8mm)
2.00
(50.8mm)
2.00
(50.8mm)
1/2 AND1/2
3/4AND
KNOCKOUTS
AND 3/4 KNOCKOUTS
3/4 1/2
KNOCKOUTS
0.96
(24.4mm)
2.45
2.45
(62.2mm)
2.45
(62.2mm)
(62.2mm)
3.00
(76.2mm)
3.00
3.00
(76.2mm)
(76.2mm)
4.751.13
(28.7mm)
(120.7mm)
4.75
4.75
(120.7mm)
(120.7mm)
0.96
0.96
(24.4mm)
(24.4mm)
1.13
(28.7mm)
1.13
(28.7mm)
1.44
(36.6mm)
2.54 (64.5mm
1/2 AND 3/4 KNOCKOUTS
KNOCKOUT
(2 (2
PL)
1/2
KNOCKOUT
PL)
1/21/2
KNOCKOUT
(2 PL)
Cat. Nos. N1303-TDS, N13NC-TDS
3.24
(82.2mm)
3.24
(82.2mm)
3.24
(82.2mm)
0.25
(6.4mm)
MOUNTING
HOLE
PL)
0.25
(6.4mm)
MOUNTING
HOLE
(2
PL)
0.25
(6.4mm)
MOUNTING
HOLE
(2(2PL)
2.00
(50.8mm)
2.00
(50.8mm)
2.00
(50.8mm)
2.54
(64.5mm)
2.54
(64.5mm)
2.54
(64.5mm)
3.33
(84.6mm)
3.33
(84.6mm)
(127.4mm)
1.00
(25.4mm)
5.01
2.88 (73.2mm)
2.88 (73.2mm)
2.88 (73.2mm)
1/2 AND 3/4 KNOCKOUTS
1.00
(25.4mm)
2.45
2.45
(62.2mm)
2.45
(62.2mm)
(62.2mm)
3.00
3.00
3.00
(76.2mm)
(76.2mm)
(76.2mm)
1/2
AND
3/4
KNOCKOUTS
1/2
AND
3/4
KNOCKOUTS
1/2 AND
3/4
KNOCKOUTS
1.00
(25.4mm)
5.01 1.00
5.01 (25.4mm)
1.00
(127.4mm)
(127.4mm)
(25.4mm)
1.44
(36.6mm)
1.44
(36.6mm)
3.24 (82.2mm)
3.33 (84.6mm)
1/2
KNOCKOUT
(2
PL)
1/2
KNOCKOUT
(2(2
PL)
1/2
KNOCKOUT
PL)
Ordering Information
Cat. No.
Description
AC Horsepower Rating (HP)
120V
240V
480V
600V
MS302-DS
30 AMP, 600V AC, 2-Pole, 1Ø ,
Standard Toggle
2
5
10
15
MS302-DSS
30 AMP, 600V AC, 2-Pole, 1Ø ,
Short Toggle
2
5
10
15
MS303-DS
30 AMP, 600V AC, 3-Pole, 3Ø ,
Standard Toggle
3
7½
15
20
MS303-DSS
30 AMP, 600V AC, 3-Pole, 3Ø,
Short Toggle
3
7½
15
20
MS402-DS
40 AMP, 600V AC, 2-Pole, 1Ø ,
Standard Toggle
2
5
10
15
MS403-DS
40 AMP, 600V AC, 3-Pole, 3Ø ,
Standard Toggle
3
7½
15
20
N1302-DS
Type 1 Metal Enclosure
with MS302-DS Switch
2
5
10
15
N1303-DS
Type 1 Metal Enclosure
with MS303-DS Switch
3
7½
15
20
N1303-TDS
Type 1 Enclosure with
Thermoplastic Cover and MS303-DS Switch
3
7½
15
20
N3302-DS
Type 3R Metal Enclosure
with MS302-DS Switch
2
5
10
15
N3303-DS
Type 3R Metal Enclosure
with MS303-DS Switch
3
7½
15
20
N13NC-DS
N13NC-TDS
N33NC-DS
Type 1 Metal Enclosure Only
(Use only with 30A Motor Starter Switches listed above)
Type 1 Thermoplastic Enclosure Only
(Use only with 30A Motor Starter Switches listed above)
Type 3 Metal Enclosure Only
(Use only with 30A or 40A Motor Starter Switches listed above)
See switch ratings above
See switch ratings above
See switch ratings above
Leviton Manufacturing Co., Inc.
201 North Service Road, Melville, NY 11747
Telephone: 1-800-323-8920 • Fax: 1-800-832-9538 • Tech Line (8:30AM-7:00PM E.S.T. Monday-Friday): 1-800-824-3005
Leviton Manufacturing of Canada, Ltd.
165 Hymus Boulevard, Pointe Claire, Quebec H9R 1E9
Telephone: 1-800-469-7890 • Fax: 1-800-563-1853
Leviton S. de R.L. de C.V.
Lago Tana 43, Mexico DF, Mexico CP 11290
Telephone: (+52) 55-5082-1040 • Fax: (+52) 55-5386-1797 • www.leviton.com.mx
Leviton Manufacturing of Dubai, Ltd.
J/Ali Free Zone, View 19 7th Floor, Office 701 • PO Box 262742 Dubai, UAE
Telephone: +971 4 886 4722 • Fax: +971 4 886 4723
Visit our Website at: www.leviton.com email: industrial@leviton.com
© 2011 Leviton Manufacturing Co., Inc. All rights reserved.
Q-313C