Product Description
The LEVITON MS403-DS is an AC manual motor starter switch designed for safe and reliable control of motor loads. It is suitable for ON/OFF switching control of conveyor systems, pumping machines, HVAC systems, and air compressors. This 3-pole, three-phase switch has a voltage rating of 600V and a current rating of 40A.
- Thermoplastic molded parts resist impact, chemicals, temperature, tracking, and arcing.
- Cam driven mechanism enhances fast make/slow break.
- Silver alloy contacts maximize conductivity and service life.
Product Highlights
Provides reliable control for heavy equipment with a non-grounding design and back and side wiring options. Ideal for industrial and commercial applications.
Product Information
Standard Information
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Brand: LEVITON
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Manufacturer Part Number: MS403-DS
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Country of Origin: Mexico
Technical Specifications
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Voltage: 600 VAC
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Material: Polyester
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Horsepower: 7.5 hp
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Amperage Rating: 40 A
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Contact Configuration: TPST
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Enclosure: NEMA WD-1/WD-6
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Environmental Conditions: -40 to 60 deg C Operating Temperature
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Number of Poles: 3
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Operating Cycles: 6000 Cycles
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Power Rating: 20 hp
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Type: Manual Non-Grounding
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Actuator: Standard Toggle
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Connection: Back/Side Wired/Screw
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AC Horsepower Ratings: 3HP-120V, 7.5HP-240V, 15HP-480V, 20HP-600V
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Dielectric Voltage: Withstands 2200 VAC for 1 min.
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Endurance: 6,000 cycles inductive motor type load
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Grounding: Non-Grounding
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Overload UL20 Test: 50 cycles at 6 times full rated current
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Short Circuit Current Rating: 10,000 RMS symmetrical amps at 600V AC max. when protected by a 30A time delay fuse
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Temperature Rise: 50 00baC Max at full rated current
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Flammability: Rated V-0 per UL 94
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Operating Temperature: -40 00baC to 60 00baC
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Base Material: Thermoplastic Polyester
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Contacts: Silver-Alloy
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Cover Material: Thermoplastic Polyester
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Strap Material: Nickel-Plated Brass
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Terminal Screws: Nickel-Plated Brass 10-32, Triple Combination
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Toggle: Thermoplastic Polyester
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Product ID: Ratings are permanently marked on device
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Terminal Accom.: #10 - #8 AWG
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Terminal ID: T1, T2, T3, L1, L2, & L3 marked on back of device
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Termination: Back & Side
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Torque Range: 20 inch pounds maximum
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Device Type: Toggle Switch
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ANSI: C-73
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NEMA: WD-1 & WD-6
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NOM: NOM-ANCE
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UL 60947-4-1: supersedes UL 508
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cUL per CSA C22.2 No. 111: File #E63969
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Input Voltage: 600V AC
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Current Rating: 40A
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Certifications & Standards: cUL per CSA C22.2 No. 111
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Pole: 3
