Leviton MS303-DS Switch

Product Overview

The Leviton MS303-DS is a genuine Leviton industrial motor starter switch. It is an ebony, non-reversing motor starter designed as a 3-pole, 3-phase unit rated for 30 A and 600 V.

Suitable for commercial and industrial electrical applications where a three-pole motor starter switch is required; sold as a single EA unit with model number MS303-DS (UPC 07847737415).

Key Features

• Non-reversing motor starter switch (NON-REV MTR STRT)
• 3-pole, 3-phase configuration
• Rated 30 A, 600 V
• Ebony finish
• Genuine Leviton wiring device

Function and intended use

The MS303-DS is a non-reversing motor starter switch intended to control three-phase motors and related equipment. As a three-pole starter, it provides simultaneous switching of all three phases in motor control applications.

It is offered as a single unit (model MS303-DS) and is part of Leviton's line of industrial momentary/maintained motor starter switches.

• Non-reversing (single-direction) motor starter
• 3-pole switching for 3-phase motor circuits

Electrical ratings

Use the electrical ratings to confirm compatibility with your motor and supply system. The MS303-DS is rated for 30 amps and 600 volts.

Ensure the switch ratings meet or exceed the requirements of the load and match applicable electrical codes and protection devices used in your installation.

• Current rating: 30 A
• Voltage rating: 600 V
• Configuration: 3-pole, 3-phase

Dimensions, finish, and weight

The product is described with an ebony finish. Shipping weight is approximately 3.98 lb. Confirm enclosure and mounting space to accommodate the unit and its required wiring clearances.

• Finish: Ebony
• Shipping weight: 3.98 lb (approx.)

Ordering guidance

Confirm the model number and quantity required before ordering. This page covers the single SKU MS303-DS (UPC 07847737415).

For project specification or replacement, verify the non-reversing function, 3-pole configuration, and 30 A / 600 V ratings match your application.

• Model/SKU: MS303-DS
• Unit of measure: EA

Before You Order

Confirm the MS303-DS model number and that a non-reversing, 3-pole, 30 A / 600 V motor starter switch meets your application and electrical code requirements.

• Verify non-reversing function is acceptable for your motor control needs.
• Confirm 30 A and 600 V ratings match the load and supply.
• Check enclosure, mounting, and wiring space for the unit.

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Leviton MS303-DS Switch. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.