---
product_id: 10423699
title: "Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black"
brand: "leviton"
price: "€ 53.28"
currency: EUR
in_stock: true
reviews_count: 13
category: "Leviton"
url: https://www.desertcart.pt/products/10423699-leviton-30-amp-600-volt-three-pole-three-phase-ac
store_origin: PT
region: Portugal
---

# 30 Amp heavy-duty current Three-pole, three-phase control 600 Volt industrial voltage rating Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black

**Brand:** leviton
**Price:** € 53.28
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power your industrial edge with confidence and control!

## Quick Answers

- **What is this?** Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black by leviton
- **How much does it cost?** € 53.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/10423699-leviton-30-amp-600-volt-three-pole-three-phase-ac)

## Best For

- leviton enthusiasts

## Why This Product

- Trusted leviton brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Toggle Design:** Oversized toggle ensures clear feedback and long-lasting use under tough conditions
- • **Universal Compatibility:** Fits standard wall boxes with back or side wiring options for flexible installation
- • **Certified Safety & Longevity:** cUL listed with a 10-year limited warranty for peace of mind
- • **Corrosion-Resistant Terminals:** Nickel-plated #10 triple-combination screws for secure, maintenance-free connections
- • **Industrial-Grade Power Control:** Reliable ON/OFF switching for heavy machinery and motor loads

## Overview

The Leviton MS303-DS is a robust 30 Amp, 600 Volt, three-pole, three-phase AC motor starter designed for industrial applications. It offers reliable manual ON/OFF control for motors in conveyor systems, HVAC, and heavy manufacturing equipment. Featuring corrosion-resistant nickel-plated terminals, an oversized toggle for durability, and compatibility with standard wall boxes, this switch combines safety, longevity, and ease of installation. Backed by a 10-year warranty and cUL certification, it’s the economical choice for professionals demanding dependable motor disconnect solutions.

## Description

Product Description 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. From the Manufacturer Leviton's Industrial Grade AC Manual Motor Starter Switches 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. Leviton uses the finest materials available and the highest production standards to produce industrial switches of unmatched versatility and reliability. 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, Black.

Review: Works Great and Economical - If your looking for a Three Phase Switch to use this is a great option. Small and easily installed. Used to power a Paint Powder Booth. Very economical as compared to other options.
Review: Item works as it should - No problems with this switch. This is by far the cheapest way to turn on and off 480 Volts. There are so many restrictions for high voltage equipment and using alternative contactors and other devices are 10X more expensive. Will definitely buy this again if the need arises.

## Features

- Provides safe, reliable control of a variety of motor loads; suitable for use as motor disconnect
- Fits in standard wall box
- Accepts back or side wiring, terminal clamps or ring terminals
- Oversized toggle provides clear actuation feedback and long-lasting durability
- Nickel-plated #10 triple-combination terminal screws for corrosion resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002MPPT3Y |
| Actuator Type | Push Button |
| Best Sellers Rank | #19,081 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Motor Starters |
| Brand | Leviton |
| Brand Name | Leviton |
| Circuit Type | Three-Phase |
| Color | Black |
| Compatible Devices | All |
| Connector Type | Ring, Screw |
| Contact Material | Silver Alloy |
| Contact Type | Normally Open |
| Control Method | Push Button |
| Control Type | Manual |
| Current Rating | 30 A |
| Customer Reviews | 4.7 out of 5 stars 326 Reviews |
| Dielectric Strength | '2200 VAC for 1 min.' |
| Global Trade Identification Number | 00078477374153 |
| Included Components | MS303-DS |
| Item Type Name | MS303-DS |
| Item Weight | 0.16 kg |
| Manufacturer | Leviton |
| Material | Nickel |
| Material Type | Nickel |
| Maximum Current | 30 A |
| Model | MS303-DS |
| Mounting Type | Wall Mount |
| Number of Packs | 1 |
| Number of Positions | 3 |
| Operating Voltage | 600 volts_of_alternating_current |
| Operation Mode | ON-OFF |
| Part Number | MS303-DS |
| Specification Met | cUL |
| Switch Type | Toggle Switch |
| Terminal | Screw |
| UPC | 763500226522 078477374153 696505447237 |
| Unit Count | 1 Count |
| Voltage | 600 volts |
| Warranty Description | 10 Year Limited |

## Product Details

- **Mounting Type:** Wall Mount
- **Brand:** Leviton
- **Material:** Nickel
- **Voltage:** 600 Volts
- **Current Rating:** 30 Amps

## Images

![Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black - Image 1](https://m.media-amazon.com/images/I/61qRSHbEOlL.jpg)
![Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black - Image 2](https://m.media-amazon.com/images/I/71Nv-wZU5mL.jpg)
![Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black - Image 3](https://m.media-amazon.com/images/I/51oC4T2VncL.jpg)
![Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black - Image 4](https://m.media-amazon.com/images/I/51TmYUDRzNL.jpg)
![Leviton 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, MS303-DS, Black - Image 5](https://m.media-amazon.com/images/I/51BBEWPoKaL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does it come in white or ivory?**
A: I always find in brown but check online..i think yes

**Q: Can this be used to switch between two nema 14-30 outlets (indoor dryer and outdoor RV hookup)?**
A: This is a 3 pole switch which switches the hot wires only.

**Q: Is this 30 amp per pole or 30 amp total? Using it in a 3 phase circuit.**
A: as I understand it .
,it is 30 amp. total .

**Q: What kind of breaker do you use with it**
A: You need a three pole breaker.  Three phases with the amperage based on the load your using it for. I'm using mine as a 1hp motor starter. In addition I have an emergency cut off box next to the unit I'm running.  Switches work great for three phase operation I would highly recommend them.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Great and Economical
*by R***T on June 25, 2018*

If your looking for a Three Phase Switch to use this is a great option. Small and easily installed. Used to power a Paint Powder Booth. Very economical as compared to other options.

### ⭐⭐⭐⭐⭐ Item works as it should
*by F***M on January 22, 2019*

No problems with this switch. This is by far the cheapest way to turn on and off 480 Volts. There are so many restrictions for high voltage equipment and using alternative contactors and other devices are 10X more expensive. Will definitely buy this again if the need arises.

### ⭐⭐⭐⭐⭐ Greate for mini-split indoor unit cutoff
*by A***C on January 26, 2013*

My Mitusubishi mini-split Heat pumps I just installed have the main power (20Amp) supplied to the outdoor unit. The power and control wires and ground (4 wires total), needed a 3 pole switch to allow each indoor unit to have power cut individually (to meet code). These are the only 3-pole on/off switches I could find and seem to be good quality, but are kind of pricey. If you want to install to code these are likely your only choice. Amazon had by far the best price on them. I installed these in the wall (with normal old-work boxes) next to each unit. Worked great. Just what I needed. Used a standard switch plate. I used the 14g 4-wire cable available from eComfort where I got my mini-split units. The wire supplies power from the outdoor unit into the indoor units though the switches.

## Frequently Bought Together

- Leviton MS303-DS 30 Amp 600 Volt, Three-Pole, Three Phase AC Motor Starter, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, Black
- Leviton N13NC-DS GY Type 1 Enclosure (for use with 30 Amp Motor Controller Switches), Steel - Gray
- Leviton N33NC-DS Type 3R Enclosure (for use with 30 Amp or 40 Amp Motor Starter Controllers), Steel - Gray

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-13*