Square D D222N General Duty Fu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$172.27
Square D D222N General Duty Fusible Safety Switch, NEMA 1 with Neutral

Square D D222N General Duty Fusible Safety Switch, NEMA 1 with Neutral

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Model: D222N

In Stock (leaves warehouse same day if ordered before 3pm ET)

$172.27
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Square D D222N General Duty Fusible Safety Switch, NEMA 1 with Neutral

The Square D D222N General Duty Fusible Safety Switch by Schneider Electric is built for residential and light commercial applications where durability and economy are top priorities. This fusible disconnect switch is rated 240V AC with a NEMA 1 enclosure for indoor use and includes a neutral for common lighting, air conditioning, and appliance loads. This platform is available in 2-pole and 3-pole configurations, letting installers match the switch to single-phase or three-phase circuit requirements while sharing the same rugged quick-make, quick-break mechanism and UL Listed construction (File E2875) across the family. It delivers dependable over-current and short-circuit protection in a compact, easy-to-service package suitable for panelboard and feeder disconnects.

Key Features

  • Fusible Disconnect Switch: Single-throw safety switch with a quick-make, quick-break operating mechanism for safe, reliable switching, available in 2-pole and 3-pole configurations.
  • Operational Voltage: Rated 240V AC for general duty residential and commercial circuits.
  • Short-Circuit Current Rating: Up to 100 kA maximum depending on installed fuse class H, K, or R.
  • Motor Horsepower Ratings: 25 HP at 240V AC, 60 Hz for 3-phase motors and 15 HP at 240V AC, 60 Hz for 1-phase motors.
  • Wire Range: Accepts AWG 6...250 kcmil aluminum or copper conductors via lug connections, with a tightening torque of 275 lbf.in.
  • With Neutral: Includes a neutral connection for 4-wire circuit configurations.
  • Enclosure Rating: NEMA 1 enclosure suited for general duty indoor installations.
  • Application: Designed for residential and light commercial use including lighting, air conditioning, and appliance circuits.

Certifications & Compliance

  • UL Listed, File E2875
  • NEMA 1 Rated Enclosure
  • Designed for Residential and Commercial Applications

Technical Specifications

  • Number of Poles Available: 2, 3
  • Voltage Rating: 240V
  • Connection Type: Lugs
  • Warranty Period: 18 months
  • Average Life Duration: 15 year(s)
  • Mercury Free: Yes
  • Toxic Heavy Metal Free: Yes
  • Sustainable Packaging: Yes
  • Returnability: Yes

Typical Applications

  • Residential Electrical Service Disconnects
  • Light Commercial Power Distribution
  • Air Conditioning and Appliance Circuit Protection
  • Lighting Load Disconnects
  • Panelboard and Feeder Over-Current Protection

Why Square D?

Square D safety switches from Schneider Electric combine a quick-make, quick-break operating mechanism with UL Listed construction to deliver dependable over-current and short-circuit protection for residential and light commercial electrical systems. With a NEMA 1 enclosure, a wide AWG 6...250 kcmil wire range, and motor horsepower ratings suited to both single-phase and three-phase loads across the 2-pole and 3-pole D222N family, this general duty fusible safety switch is engineered for code-compliant, professional-grade performance backed by an 18-month warranty.

Manufacturer Resources

Product Specs

Product Type:
Safety Switch
Voltage Rating:
240V
Listing:
UL Listed
Standards:
NEMA 1
Connection Type:
Lugs
Department:
Electrical
Product Group:
Power Distribution
Configuration:
With Neutral
Amperage Rating:
Fusible
Product Subgroup:
Safety Switches & Disconnects
Country Of Origin:
United States

Square D D222N – Frequently Asked Questions

1) Can I use the Square D D222N safety switch outdoors or in a wet location?
No. The D222N comes in a NEMA 1 enclosure, which is indoor, general purpose only. No rain, no washdown, no exterior wall. For an outdoor disconnect you need a rainproof enclosure such as the Eaton DH366URK, a NEMA 3R safety switch.
2) What is the difference between the 2-pole D222N and the 3-pole D324N?
Pole count, which follows your supply. The 2-pole version is the D222N and is used on single phase circuits; the 3-pole version is the D324N for three phase. Both are fusible, both include a neutral, and both share the same quick-make, quick-break mechanism and 240V rating.
3) Will the Square D D222N work on a 480V circuit?
No. It is rated 240V AC only, so it is limited to 120/240V single phase and 240V three phase systems. A 480V feeder needs a 600V class switch, for example the ABB TC-72367 Spec-Setter, a 3-pole 600V AC fusible switch.
4) Does the D222N come with fuses, and what fuse class does it take?
It is a fusible switch, so fuses are installed separately and are not part of the switch. It accepts class H, K, or R fuses, and the short circuit current rating goes up to 100 kA maximum depending on which class you install. Size the fuses to the load and order them with the switch.
5) What wire size can I land in a Square D D222N disconnect, and what torque do I use?
The lugs take AWG 6 through 250 kcmil, aluminum or copper, and tighten to 275 lbf-in. That range covers most residential service and light commercial feeder conductors. Terminations are lug type, so no separate kit is needed for standard copper or aluminum conductors.
6) Can I use this switch as a motor disconnect for an air conditioner or compressor?
Yes, within its horsepower ratings: 25 HP at 240V AC, 60 Hz on three phase and 15 HP at 240V AC, 60 Hz on single phase. That covers typical residential and light commercial AC and appliance motor loads. Match pole count to the supply, 2-pole D222N for single phase and 3-pole D324N for three phase.
7) The job spec calls for a heavy duty switch - is the Square D D222N acceptable?
No. The Square D D222N is a general duty fusible safety switch intended for residential and light commercial circuits such as lighting, air conditioning, and appliance loads. If the drawing calls for heavy duty, the ABB TC-72367 Spec-Setter is a heavy-duty fusible switch at 600V AC, 3-pole, NEMA 1, and the ABB THN3365A is a heavy-duty switch rated 400A, 3-pole, 600V. Match the amperage and voltage on the drawing to the specific heavy duty catalog number before ordering.
8) What is the closest general duty fusible disconnect to the Square D D222N from another manufacturer?
The ABB TG-Series Spec-Setter is also a general duty fusible safety switch, so it is the nearest equivalent in class to the Square D D222N. The D222N is rated 240V with a NEMA 1 enclosure and includes a neutral for 4-wire circuits, and it is UL Listed under File E2875 with a quick-make, quick-break mechanism in 2-pole and 3-pole builds. Confirm the TG-Series build you order matches the voltage, pole count, and neutral arrangement the circuit needs before swapping it in.
9) I need a 600V fusible disconnect, not 240V - what should I use instead of the Square D D222N?
The D222N is rated 240V, so it is not the right switch for a 600V circuit. The ABB TC-72367 Spec-Setter is a heavy-duty fusible safety switch rated 600V AC, 3-pole, in a NEMA 1 enclosure, which covers the same indoor mounting location at the higher voltage class. Note that it is a heavy duty switch rather than a general duty one, so verify the enclosure dimensions and wire terminations against the existing can before you order a direct replacement.
10) Can I use the Square D D222N outdoors at an air conditioning condenser?
The D222N uses a NEMA 1 enclosure, which is for general duty indoor installations, so it is not the switch for an exterior wall or a rooftop condenser. For an outdoor location, the Eaton DH366URK K Series switch is supplied in a NEMA 3R enclosure, rated 600A and 3-pole; it is a non-fusible switch, so if the circuit needs fuses for overcurrent protection you will need fusing elsewhere in the feeder.
11) I need a generator transfer arrangement - is the Square D D222N the right switch?
No. The D222N is a single-throw safety switch, so it feeds one source to one load. For switching a load between two sources, the Eaton heavy-duty double-throw non-fused safety switch in painted steel with a NEMA 1 enclosure is the correct configuration. It is non-fused, so overcurrent protection has to come from the panel ahead of it.
12) Do I need the neutral version, or will a switch without a neutral do?
Order the neutral version when the circuit is 4-wire, or 3-wire single phase with a grounded conductor that has to be carried through, which is the usual case for 120/240V lighting, appliance, and AC branch circuits. The D222N family is configured with neutral, giving you a solid neutral connection inside the can. Straight 3-wire ungrounded loads do not require it.
13) Can I use the D222N as a service disconnect ahead of a panelboard?
Yes, that is one of its intended uses: residential service disconnects, panelboard and feeder over-current protection, and lighting load disconnects, all at 240V indoors. Because it is fusible, it provides the over-current and short-circuit protection for that feeder once the correct class H, K, or R fuses are installed.
14) I need a non-fused disconnect, not a fusible one. Is this the wrong switch?
Yes, this one is fusible, so the over-current device sits inside it. If you only need a local means of disconnect because protection is upstream, choose a non-fusible switch instead, such as the Eaton DH366URK K Series non-fusible 600A NEMA 3R, or Eaton's heavy-duty double-throw non-fused switch in painted steel, NEMA 1, where you are transferring between two sources.
15) What is the difference between the Square D D222N and a non-fusible disconnect like the Eaton DH366URK?
The D222N is a fusible switch, meaning fuses mount inside it and provide the over-current and short-circuit protection, with a short-circuit current rating up to 100 kA depending on whether class H, K, or R fuses are installed. The Eaton DH366URK is a non-fusible safety switch, so it only breaks the circuit and carries no fuses. Use the fusible D222N where the disconnect also has to supply the branch protection, and a non-fusible switch where upstream breakers or fuses already protect the conductors.
16) Is the Square D D222N big enough for a 400A feeder?
The D222N accepts AWG 6 to 250 kcmil aluminum or copper conductors at its lugs and is rated for motor loads up to 25 HP at 240V three-phase and 15 HP at 240V single-phase, which puts it in the residential and light commercial feeder range rather than large feeders. For a 400A, 3-pole, 600V feeder disconnect, the ABB THN3365A heavy-duty switch is sized for that duty.
17) Is the Square D D222N made in the USA, and does it meet green procurement requirements?
Country of origin is the United States. It is mercury free and free of toxic heavy metals, and ships in sustainable packaging, which covers the usual questions on institutional and sustainable-distributor purchasing checklists.
How fast can I get the Square D D222N delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D D222N come with a warranty?
Absolutely. The Square D D222N is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D D222N?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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