Specification

Product Bulletin for
30 Amp and 40 Amp
Motor Starter Switches
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.
Leviton Manufacturing Co., Inc.
201 North Service Road, Melville, NY 11747
Telephone: [phone] • FAX: [phone] • Tech Line (8:30AM-7:30PM E.S.T. Monday-Friday): 1-800-824-3005
Leviton Manufacturing of Canada, Ltd.
165 Hymus Boulevard, Pointe Claire, Quebec H9R 1E9
Telephone: [phone] • FAX: [phone]
Leviton S. de R.L. de C.V.
Lago Tana 43, Mexico DF, Mexico CP 11290
Tel. [phone] • Fax: [phone] • www.leviton.com.mx
Leviton Manufacturing of Dubai, Ltd.
J/Ali Free Zone, View 19 7th Floor, Ofce 701 • PO Box 262742 Dubai, UAE
Tel: [phone] • Fax: [phone]
Visit our Website at: www.leviton.com email: [e-mail]
© 2009 Leviton Manufacturing Co., Inc. All rights reserved.
Q-313
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.
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
Industrial Grade
Manual Motor Controllers
“Suitable as Motor Disconnect”
30A and 40A Motor Starter Switches for
Single Phase and Three Phase Applications
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).
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 7 ½ 15 20
MS303-DSS
30 AMP, 600V AC, 3-Pole, 3Ø,
Short Toggle
3 7 ½ 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 7 ½ 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 7 ½ 15 20
N1303-TDS
Type 1 Enclosure with
Thermoplastic Cover and MS303-DS Switch
3 7 ½ 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 7 ½ 15 20
N13NC-DS
Type 1 Metal Enclosure Only
(Use only with 30A Motor Starter Switches listed above)
See switch ratings above
N13NC-TDS
Type 1 Thermoplastic Enclosure Only
(Use only with 30A Motor Starter Switches listed above)
See switch ratings above
N33NC-DS
Type 3 Metal Enclosure Only
(Use only with 30A or 40A Motor Starter Switches listed above)
See switch ratings above
Ordering Information