Manual Motor Controller
MS303-DSS
30 Amp, 600 Volt, 3-Pole, Three-Phase Single Throw AC Manual Motor Controller, Suitable as Motor Disconnect, Short Toggle, Industrial Grade, Non-Grounding, Back & Side Wiring, - Black
Powerswitch® 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 conveyor systems, pumping machines, HVAC systems, air compressors and other heavy manufacturing equipment. These motor controllers are available for both single-phase and three-phase applications.
Product Information
AC Horsepower Ratings
HP Rating : 3HP-120V, 7.5HP-240V, 15HP-480V, 20HP-600V
Electrical Specifications
Amperage : 30 A
Dielectric Voltage : Withstands 2200 VAC for 1 min.
Endurance : 6,000 cycles inductive motor type load
Grounding : Non-Grounding
Overload UL20 Test : 50 cycles at 6 times full rated current
Pole : 3
Short Circuit Current Rating : 10,000 RMS symmetrical amps at 600V AC max. when protected by a 30A time delay fuse
Temperature Rise : 50ºC Max at full rated current
Voltage : 600 VAC
Environmental Specifications
Flammability : Rated V-0 per UL 94
Operating Temperature : -40°C to 60°C
Material Specifications
Base Material : Thermoplastic Polyester
Color : Black
Contacts : Silver-Alloy
Cover Material : Thermoplastic Polyester
Strap Material : Nickel-Plated Brass
Terminal Screws : Nickel-Plated Brass 10-32, Triple Combination
Toggle : Thermoplastic Polyester
Mechanical Specifications
Product ID : Ratings are permanently marked on device
Terminal Accom. : #10 - #8 AWG
Terminal ID : T1, T2, T3, L1, L2 & L3 marked on back of device
Termination : Back & Side
Torque Range : 20 inch pounds maximum
Product Features
Color : Black
Device Type : Toggle Switch
Standards and Certifications
ANSI : C-73
NEMA : WD-1 & WD-6
NOM : NOM-ANCE
UL 60947-4-1 : supersedes UL 508
Warranty : 10-Year Limited
cUL per CSA C22.2 No. 111 : File #E63969
