The 7 Best NEMA 4 Disconnect Switches (2023 reviews)

We consider a nema 4 disconnect switch to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

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Our Top Picks:

Siemens NEMA 4 Disconnect Switch Buy: READ REVIEW

Schneider Electric Safety Switch Buy: READ REVIEW

Siemens Safety Switch Buy: READ REVIEW

Walr Electric NEMA 4 Disconnect Switch Buy: READ REVIEW

Square D by Schneider Electric NEMA 4 Disconnect Switch Buy: READ REVIEW

Schneider Electric NEMA 4 Disconnect Switch Buy: READ REVIEW

Square D by Schneider Electric Galvannealed Steel Buy: READ REVIEW

Siemens NEMA 4 Disconnect Switch

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The siemens nema 4 disconnect switch should be able to handle its purpose and duties with ease. This safety disconnect switch is a standard disconnect for low amperage 240 vac, used in shop electrical wiring, not intended for use in a car like a Prius. It can be used as a switch on a 208v or 240v circuit, it is making or breaking 2 separate 120v circuits. It only has 2 poles and it has a ground block but with only 2 holes. The unit does not have a neutral or a ground bar.

The 2 pole and 3 pole versions use the same interior and enclosure. It works with continuous neutral and can be used in electrical work. It can be used with 1ph3w, or 3p4w systems when neutral kit hn224 is added. It can be used with 1ph3w, or 3p4w systems when a neutral kit is added.

• Makes a good thunk when engaging
• Durable on/off indication imbedded in steel door eliminates risk of scratching or fading
• Worked well on 40amp gfci spa circuit
• 120 /240v, single phase, 2 wire, non-fusible safety switch

Schneider Electric Safety Switch

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It is important to have a switch with enhanced load break capability. The square d safety switch modular design allows the replacement of all interior worn or damaged components. 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 provides superior corrosion protection and additionally it is built to easily manage heavy motor loads and arc interruptions.

The square d safety switch is designed for residential and commercial applications where durability and economy are prime considerations. It features extend switch life and reduce downtime, saving labor and material costs. It's a 2 pole device with neutral. It is suitable for use as service entrance equipment when equipped with a service grounding kit. It is great for air compressor or similar load.

• Nema type 1 metallic enclosure for indoor use
• 3 -wire design with 2 blades and fuse holders and 1 neutral
• Field-replaceable components such as interior line bases, load bases, and mechanisms are available

Siemens Safety Switch

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Not everyone likes to purchase switch for their daily usage, but the siemens safety switch would be an anomoly. Wiring this unit is no more difficult than a light switch. Since it is designed for household 240v this is essentially a giant 2 pole switch. It is designed for 240 volt up to 60 amp. 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.

This is for a 3 wire install (2 HOT, 1 equipment GND) with a max of 240VAC. The disconnecting throw is solid and all connections are pre-greased. There are purpose built hot tun shutoffs that would work better. This box can be installed inside or outside.

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

Walr Electric NEMA 4 Disconnect Switch

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Not everyone likes to purchase switch for their regular usage, but the walr electric nema 4 disconnect switch would be an anomoly. Walther's motor disconnect switches combine a horsepower rated switch in a tough, impervious nema 4x enclosure for safe motor load disconnect. It is ideal for indoor/outdoor applications. The KEM340UL Y/R is a heavy machinery safety switch that can be installed locally at the motor within line-of-sight from the motor controller. It is built with silver contacts which are excellent conductors and promote safe and durable operation.

Non-Metallic housings are non-conductive and can be connected to metallic conduit without interfering with the ground continuity. It has been tested by UL to nationally recognized safety and sustainability standards for motor disconnect applications up to 600 vac. The High-visibility red handle can be padlocked to meet OSHA lockout/ tagout requirements when maintenance or cleaning is required. It can be used locally at the motor.

• Undamaged by ice formations on the enclosure
• Ensures that electrical circuit is completely de-energized for service or maintenance
• Good brand reputation

Square D by Schneider Electric NEMA 4 Disconnect Switch

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The square d by schneider electric brand heavy duty safety switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. This single throw safety switch has a rated current of 30a and is listed with a nema 3r rating of protection. It allows visual verification of blade position without opening the door. It is sturdy, weatherproof and easy to mount and wire up.

The pole switch has operational voltage ratings of 600VAC/DC. Dual cover interlock prevents the cover from being opened when the switch is ON and prevents the switch from being turned ON when the switch is ON and prevents the switch from being turned ON when the switch is ON. It is suitable for service entrance equipmentrequires a field installed touch safe kit for 2020 compliance on service entrancesold separately.

• Meets nema type 3r requirements when drain plug is removed
• Two or three, fusible switched poles, with or without, insulated groundable solid neutral
• Single throw heavy duty safety switch

Schneider Electric NEMA 4 Disconnect Switch

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Square d safety switches provide significantly higher levels of mechanical endurance than nema ks-1 require. It provides superior corrosion protection and it is built to easily manage heavy motor loads and arc interruptions. 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 made for a high-strength polymer chosen for weather resistance, durability, and impact strength.

The square d safety switch modular design allows the replacement of all interior worn or damaged components.

• Field-replaceable components such as interior line bases, load bases, and mechanisms are available
• 3 -wire design with 2 blades and fuse holders and 1 neutral
• Nema type 3r metallic enclosure for outdoor use

Square D by Schneider Electric Galvannealed Steel

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The square d by schneider electric brand heavy duty safety switch is designed to be tough, reliable and provide exceptional performance in the most grueling conditions. It allows visual verification of blade position without opening the door. All heavy duty safety switches feature a quick-make, quick-break operating mechanism, a dual cover interlock and a color-coded indicator handle.

The F Series safety switches provide significantly higher levels of mechanical endurance than NEMA KS-1 or UL98 standards require. This single throw safety switch has a rated current of 60a and is UL listed with a nema 3r rating of protection. The pole switch has operational voltage ratings of 600vac / dc. It is suitable for service entrance equipmentrequires a field installed touch safe kit for 2020 compliance on service entrancesold separately.

• Spring reinforced plated copper fuse clips
• Good brand reputation