Leviton MS303-DS Industrial AC Motor Starting Switch; 3-Pole, Manual Toggle Operator, 600 Volt, 30 Amp, Black

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Vendor: Leviton
Cat #: MS303-DS
Part #: 13086
SKU: 311177
UPC #: 078477374153

Product Details

Size: 2.030 Inch Width x 2.480 Inch Depth x 3.750 Inch Height
50 deg C maximum temperature rise at full rated current
Overload UL20 test: 100 cycles of overload at 4.8 times rated current, overload UL508 test: 50 cycles of overload at 6 times rated current
Nickel plated brass yoke, silver-cadmium 0.031 Inch thick contacts, nickel plated brass 10-32 terminal screws
T1, T2, T3, L1, L2 and L3 terminal identification marked on back of device
Ratings are permenantly marked on device
Nickel plated brass strap material
Internal chamber barriers prevent flash-over between phases

Leviton 3-Pole 3-Phase Industrial grade AC motor starter switch is engineered to deliver safe and reliable control of a wide range of motor loads. It has a voltage rating of 600 VAC and current rating of 30 Amps. It has a motor power rating of 3 hp at 120 VAC, 7-1/2 hp at 240 VAC, 15 hp at 480 VAC and 20 hp at 600 VAC. It is designed to withstand a dielectric voltage of 2200 Volts for one minute. It has a short circuit rating of 10000 RMS symmetrical Amps at maximum voltage 600 VAC when protected by a 30 Amps time delay fuse.

Switch's base, cover and standard toggle is made of PBT polyester material to offer resistance against impact, chemicals, temperature, tracking and arcing. It includes nickel-plated brass screws and bushings for quick installation. It is featured with a cam-driven mechanism to increase fast-make/slow-break. It is provided with silver-alloy contacts for superior conductivity and service life. It measures 2.030 Inch x 2.480 Inch x 3.750 Inch. It has external clamps to accommodate 10 - 8 AWG back and side wiring. Switch features T1, T2, T3, L1, L2 and L3 marked terminals on back for easy identification.

Switch is provided with an internal insulating barrier between the terminals to offer isolation between the phases. It has a non-corrosive, durable nickel-plated brass mounting yoke with permanently marked with catalog number, amperage, voltage and horsepower ratings for easy identification. Switch features an oversized toggle for easy turn ON/OFF. Switch with triple-drive nickel-plated terminal screws enable tightening to accurate torque ranges. It has 6000 cycles of endurance for inductive motor type load. It has 50 cycles of overload protection at 6 times full rated current.

Switch operates at a temperature range of -40 to 60 deg C and has a temperature rise of 50 deg C at full rated current. It has a torque range of 25 Inch-lb. It has UL94 V-0 flammability rating to withstand harsh environment conditions. Switch meets WD1 & WD6 NEMA, C-73 ANSI, File E63969 UL 508, File #E63969 cUL per CSA C22.2 No. 111 and 057 NOM standards.

Product Specifications

Actuator Toggle
Alternate Part Number MS303DS
Amperage 30 A
Amperage Rating 30 Amp
Application For Industrial
AttachmentURL http://www.leviton.com/OA_HTML/ibcGetAttachment.jsp?cItemId=2rCA1XIatsHt7NUN2xfSNw&label=IBE&appName=IBE&minisite=10026
Case Quantity 1, 10
Catalog Description 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, Black
Catalog Number MS303-DS
Color Black
Commodity Code 41510
Connection Back and Side Wired
Contact Configuration 3PST
Contact Form Switched
Country of Origin MX
Depth (in.) 2.46
Dielectric Voltage 2200 Volt For 1 min
Duty Industrial Grade
EU RoHS Indicator Y
Environmental Conditions Flammability Rated UL94 V-0
GTIN 00078477374153
Gross Weight 0.490
Grounding Non-Grounding
HP at 120 V 3 Hp
HP at 240 V 7 1/2 Hp
HP at 480 V 15 Hp
HP at 600 V 20 Hp
Height (in.) 3.75
Hp 3 to 20
In Stock Yes
Invoice Description English 30A 3P MOTOR SW
Item AC Motor Starting Switch
Material Thermoplastic Polyester Face, Toggle And Base
Material of Construction PBT Polyester
Mfr/Vendor Leviton
Motor Power 3 hp at 120 Volt AC, 7-1/2 hp at 240 Volt AC, 15 hp at 480 Volt AC, 20 hp at 600 Volt AC
NEMA Rating Open
Number Of Poles 3
Number of Poles 3
Operating Cycles 6000 Cycles Inductive Motor Type Load
Operating Temperature -40 to +60
Operation Type Three Pole
Operator Type Manual Toggle
Phase 3
ShipWeight 0.5
ShortDescriptionStripped Leviton-MS303-DS-Industrial-AC-Motor-Starting
Standard NEMA (WD-1 & WD-6);ANSI (C-73);NOM Certified (057);UL508 (File E63969);cUL per CSA C22.2 No. 111 (File E63969)
Standards NEMA WD-1, WD-6, ANSI C-73, UL508 File #E63969, cUL Per CSA C22.2 No. 111: File #E63969, NOM 057
Temperature Rating -40 to 60 deg C
Torque Range 25 Inch-lb
Type Standard Toggle;Three-Pole AC Motor Starter Switch
UPC 078477374153
Voltage 600 Max
Voltage Rating 600 Volt
Weight 0.36
Width (in.) 2.03
Wire Size 10-8 AWG
description LEV MS303-DS 30A 3P MOTOR SW
feature#1 Thick Walled PBT Housing and Interlocking Face Encapsulates and Protects Internal Mechanism in Extreme and Harsh Industrial Environments
feature#2 Insulating Barriers Provide Terminal Isolation Between Phases
feature#3 Impact-Resistant PBT Face and Base
feature#4 Large Toggle is Easy to Turn ON/OFF with Gloved Hand
feature#5 Oversized #10 triple-combination terminal screws are vibration resistant