The 5 Best 3 Phase motor Disconnect Switches (2023 reviews)

3 phase motor disconnect switches
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It is important to have the well suited 3 phase motor disconnect switch. In the following post, we will help you to select the best 3 phase motor disconnect switchs.

Our review process:

Our Top Picks:

Siemens 3 Phase motor Disconnect Switch
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Leviton 3 Phase motor Disconnect Switch
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Siemens Safety Switch
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Schneider Electric 3 Phase motor Disconnect Switch
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Schneider Electric Safety Switch
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Siemens 3 Phase motor Disconnect Switch

Siemens 3 Phase motor Disconnect Switch
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If you often find yourself scrambling for appropriate and satisfactory switch, siemens 3 phase motor disconnect switch should be your first option for buying. It's a bit smaller than a typical disconnect for an air condictioner and looks tidy mounted on the side of the house. This opens the circuit and de-energizes your air-conditioner. It works well for small solar installs. The inside parts are plastic since some areas need to be insulated from the wires and fuses.

It's easy to install and operate. It uses two 250V cartridge fuses, which is recommended for motors rather than just your main panel's circuit breaker alone. The line side power feeding into this disconnect can be 20amp. It fits into a small narrow space very well.

Why We Like This:
  • Separate proper sized circuit breaker needed to power disconnect
  • Neutral to neutral and hot to hot
  • Lot of satisfied buyers

Leviton 3 Phase motor Disconnect Switch

Leviton 3 Phase motor Disconnect Switch
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The leviton 3 phase motor disconnect switch is specially designed for your daily usage and has all useful features. Industrial grade AC manual motor controllers provide safe, reliable control of a variety of motor loads. It has more than 110 years of experience in electrical devices including over 30 years of experience in the home automation industry and data connectivity. It works well as a point of use disconnect for multiple loads on one breaker.

These motor controllers are available for both single-phase and three-phase applications. It provides clear actuation feedback and long-lasting durability. It fits in a standard wall box. It provides a strong foundation and commitment to continuous improvement, high standards and innovation to the industry.

Why We Like This:
  • Larger than a standard or 3-way swith
  • Useful for mini split systems when installer insist on interior disconnect
  • A lot easier to use than a three phase disconnect

Siemens Safety Switch

Siemens Safety Switch
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The siemens safety switch should be able to handle its purpose and duties with ease. Since it is designed for household 240v this is essentially a giant 2 pole switch. It is simply a saftey disconnect for working on the appliance itself. This box can be installed inside or outside. There are locking holes for a padlock or utility's tag on the bottom for the lid as well as on the side to lock the hammer in the open (off) position. It is designed for 240 volt up to 60 amp. The switch housing is designed for outdoor use and doesn't have provision for through-the-top wire runs.

Why We Like This:
  • Separate grounding connection included for optional use
  • 60 amp non fusible safety switch
  • Easy mount on post just above motor switch

Schneider Electric 3 Phase motor Disconnect Switch

Schneider Electric 3 Phase motor Disconnect Switch
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It is important to have a switch with enhanced load break capability. It is made for a high-strength polymer chosen for weather resistance, durability, and impact strength. The square d by schneider electric 30 amps 240 volts 2 pole light duty indoor safety switch is designed for residential and agricultural applications in disconnecting power to workshops, hobby rooms, furnaces and garages. It takes two fuses, one for each hot leg. It reduces the amount of dust and other contaminates that shorten operating life.

It has the design of the square d safety switch includes an oversized arc suppressor, a key feature in the ability of the switch to break the load by effectively attenuating the arc for clean interruption. It is used to shut off control an air compressor in a different room. It is fine for adding fuses and a disconnect for something you will not switch very often.

Why We Like This:
  • 3 -wire design with 2 blades and fuse holders and 1 neutral
  • You can use for a air compressor
  • Field-replaceable components such as interior line bases, load bases, and mechanisms are available
  • Nema 1 enclosure for indoor applications

Schneider Electric Safety Switch

Schneider Electric Safety Switch
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It is important to have a switch with enhanced load break capability. The DU323 is a general duty, non fusible, 100A rated, 3 pole, 240VAC, NEMA 1 safety switch. It has the design of the square d safety switch includes an oversized arc suppressor, a key feature in the ability of the switch to break the load by effectively attenuating the arc for clean interruption. It reduces the amount of dust and other contaminates that shorten operating life.

Although the lug will accept #1/0 AWG conductors, the wire bending space available in the switch restricts the maximum to #1 AWG conductors. It provides superior corrosion protection to add to that it is built to easily manage heavy motor loads and arc interruptions. It features extend switch life and reduce downtime, saving labor and material costs. It is suitable for use as service entrance equipment when equipped with a service grounding kit.

Why We Like This:
  • 3 -wire design with 3 blades
  • Nema type 1 metallic enclosure for indoor use
  • Field-replaceable components such as interior line bases, load bases, and mechanisms are available