Eaton Heavy-Duty Fused Safety ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$616.69
Eaton Heavy-Duty Fused Safety Switch, NEMA 3R, Painted Galvanized Steel

Eaton Heavy-Duty Fused Safety Switch, NEMA 3R, Painted Galvanized Steel

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Model: DH221NDK

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

$616.69
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Eaton Heavy-Duty Fused Safety Switch, NEMA 3R, Painted Galvanized Steel

The Eaton Heavy-Duty Fused Safety Switch is a single-throw disconnect built for demanding commercial and industrial power distribution, rated 240V with a 60A capacity and housed in a painted galvanized steel enclosure carrying a NEMA 3R rating for outdoor and wet-location use. Configured as a two-pole, three-wire fusible switch with neutral, it delivers dependable manual disconnect and circuit protection ahead of motors, panelboards, and feeder circuits. Backed by UL Listing, this switch is engineered for safe lockout/tagout operation and long-term reliability in the field.

Key Features

  • Amperage Rating: 60A single-throw fused disconnect for reliable circuit interruption.
  • Durable Construction: Painted galvanized steel enclosure resists corrosion in indoor and outdoor environments.
  • NEMA 3R Rated: Enclosure is suitable for outdoor and wet-location installations, protecting internal components from rain and dust.
  • Two-Pole, Three-Wire Fusible Design: Fusible with neutral configuration supports 240V systems with #14-#2 Cu/Al wire range.
  • Class H Fuse Provision: Accepts Class H fuses for coordinated overcurrent protection.
  • Enhanced Visible Blade: Special feature allows quick visual confirmation of switch position for safer servicing.
  • Motor Horsepower Ratings: Max Hp: 3, 7.5 hp/10, 15 hp/10 hp (1, 3PH @ Std fuse/time delay/250 Vdc) for versatile motor disconnect applications.

Certifications & Compliance

  • UL Listed
  • NEMA 3R Enclosure Rating

Technical Specifications

  • Voltage Rating: 240V
  • Type: Heavy duty fusible safety switch
  • Fuse Class Provision: Class H
  • Certifications: UL Listed
  • Number of Poles: Two-pole
  • Enclosure Material: Painted galvanized steel
  • Product Category: Heavy Duty, Fusible with neutral
  • Fuse Configuration: Fusible with neutral
  • Number of Wires: 3
  • Special Features: Enhanced visible blade

Typical Applications

  • Motor Disconnect and Overcurrent Protection
  • Commercial and Industrial Electrical Distribution
  • Panelboard and Feeder Circuit Switching
  • Outdoor and Wet-Location Installations
  • Renovation and New Construction Projects

Why Eaton?

Eaton engineers this heavy-duty fused safety switch with a painted galvanized steel enclosure, Class H fuse provision, and an enhanced visible blade for confirmed switch position, all backed by UL Listing. The NEMA 3R rating and robust two-pole, three-wire fusible-with-neutral design make it a dependable choice for code-compliant disconnect and overcurrent protection in professional electrical installations.

Manufacturer Resources

Product Specs

Voltage Rating:
240V
Product Type:
Safety Switch
Fuse class provision:
Class H
Certifications:
UL Listed
Number Of Poles:
Two-pole
Enclosure material:
Painted galvanized steel
Product Category:
Heavy Duty, Fusible with neutral
Fuse configuration:
Fusible with neutral
Number of wires:
3
Special features:
Enhanced visible blade
Department:
Electrical
Product Material:
Galvanized Steel
Product Finish:
Painted
Amperage Rating:
60A
Configuration:
Two-Pole
Standards:
NEMA 3R
Listing:
UL Listed
Product Group:
Wiring Devices
Product Subgroup:
Wiring Devices

Eaton DH221NDK – Frequently Asked Questions

1) Can this Eaton heavy-duty safety switch be mounted outdoors on an exterior wall?
Yes. The Eaton heavy-duty fused safety switch uses a painted galvanized steel enclosure with a NEMA 3R rating, so it is suitable for outdoor and wet-location mounting where rain and dust are the concern. For washdown or corrosive environments where a stainless enclosure is specified instead, the Square D VisiPacT heavy duty fused switch is offered in a NEMA 4X stainless steel enclosure.
2) Which amperage sizes does the Eaton DH221NDK safety switch come in?
Two ratings are built: DH221NDK at 30 amperes and DH222NRK at 60 amperes. Both are 240V two-pole fusible switches, so pick the frame that matches your fuse size and feeder, not the load alone. Order by the exact part number, since the 30A and 60A units are separate catalog items.
3) Will this Eaton disconnect work on a 480V three-phase feeder?
No. It is rated 240V and built as a two-pole, three-wire device, so it suits single-phase 120/240V or two-pole 240V circuits. For 600V three-pole service, look at a 600V switch such as the ABB Spec-Setter heavy-duty fusible 3-pole 600V AC unit or the ABB THN3365A 400A 3-pole 600V switch, both in NEMA 1 enclosures for indoor use.
4) What fuses do I need to buy for this Eaton fusible disconnect?
The switch takes Class H fuses, and they ship separately, so add them to the order. Size them to the circuit and to the motor you are protecting. The switch is fusible with neutral, meaning the two hot poles are fused and the neutral lands on a solid neutral connection rather than through a fuse.
5) What size wire can I land in this Eaton 240V safety switch?
Lugs accept #14 through #2 copper or aluminum conductors, which covers a 30A or 60A branch or feeder in either metal. That range is per the switch's published wire data for the two-pole, three-wire fusible-with-neutral configuration.
6) I do not need fuses in the disconnect - the branch is already protected upstream. What is the alternative?
The Eaton DH-series switch here is a fusible design, fusible with neutral, taking Class H fuses. If the overcurrent protection is already handled upstream and you only need a motor-rated disconnecting means, the Square D VisiPacT heavy duty unfused safety switch is a non-fused heavy duty unit in a NEMA 1 enclosure - indoor only, versus the Eaton's NEMA 3R outdoor rating.
7) What is the equivalent heavy-duty fused disconnect if the job calls for 600V three-pole instead of 240V two-pole?
The Eaton DH221NDK/DH222NRK is a two-pole 240V heavy-duty fusible switch with neutral. For a 600V AC three-pole opening, the ABB Spec-Setter heavy-duty fusible safety switch is a 3-pole 600V AC unit in a NEMA 1 enclosure. Note the enclosure difference: the Eaton carries a NEMA 3R rating in painted galvanized steel for outdoor and wet locations, while the NEMA 1 ABB is an indoor dry-location enclosure.
8) Is the ABB TG-Series a direct substitute for this Eaton safety switch?
It is not an equal swap. The Eaton DH221NDK/DH222NRK is a heavy duty fusible switch, catalogued as Heavy Duty, fusible with neutral. The ABB TG-Series Spec-Setter is a general duty fusible safety switch. Both are fusible disconnects, but heavy duty and general duty are different construction classes, so if the specification or the drawing calls for a heavy duty switch, the TG-Series does not satisfy it.
9) Is this Eaton switch rated to serve as a motor disconnect, and for what horsepower?
Yes, it is listed for motor disconnect duty. Published horsepower ratings are Max Hp: 3, 7.5 hp/10, 15 hp/10 hp for single-phase and three-phase at standard fuse, time delay, and 250 Vdc conditions. Match the rating column to the fuse type you actually install, since the time-delay figure is the higher of the two.
10) Can an electrician confirm the blades are open before working on the circuit?
Yes. This Eaton heavy-duty switch has an enhanced visible blade feature, so the open or closed position of the contacts can be confirmed by eye before servicing. It is built for lockout/tagout operation, which is what most commercial and industrial jobs require at the disconnect.
11) Is a heavy-duty safety switch necessary, or will a general duty switch do the job?
Heavy duty is the grade specified for commercial and industrial distribution, ahead of motors, panelboards, and feeders, and it is what most commercial specs call out. The Eaton unit here is heavy duty. If the application is light residential or agricultural service where the spec permits it, ABB's TG-Series Spec-Setter is a general duty fusible switch and is the lighter grade.
12) Does this Eaton disconnect carry a UL Listing for inspection?
It is UL Listed, and the enclosure carries a NEMA 3R rating. Those are the two marks an inspector looks for on an outdoor fused disconnect, so the paperwork side is covered for a code-compliant install.
13) Does this Eaton safety switch have a neutral connection for a 120/240V circuit?
Yes. It is configured fusible with neutral and carries three wires across two poles, so a grounded neutral conductor can be terminated in the switch. That is what lets it serve 120/240V single-phase loads where the neutral has to be carried through rather than broken.
14) What do I move to if the feeder is larger than 60 amps?
The Eaton heavy-duty fused switch covers 30 and 60 ampere ratings. For a much larger feeder, the ABB THN3365A is a 400A three-pole 600V heavy-duty safety switch in a NEMA 1 enclosure. That is an indoor enclosure, so an outdoor location would need separate weatherproof housing, where the Eaton is NEMA 3R as supplied.
15) Which fused heavy duty switches give visual confirmation that the blades are open?
The Eaton heavy-duty fused safety switch carries an enhanced visible blade feature so an electrician can confirm switch position before servicing, which supports lockout/tagout practice. Among the alternatives, the Square D VisiPacT heavy duty fused safety switch is the comparable fused unit in that vein, in a NEMA 4X stainless steel enclosure rather than the Eaton's painted galvanized steel NEMA 3R.
16) Will a three-pole switch work in place of this one on a 240V single-phase circuit with a neutral?
Not without checking the neutral. The Eaton unit is a two-pole, three-wire fusible switch with neutral rated 240V, so the grounded conductor lands on a factory neutral assembly. The three-pole alternatives - the ABB Spec-Setter 3-pole 600V AC and the ABB THN3365A 400A 3P 600V - are three-pole switches, and a neutral for those is a separate consideration rather than part of the two-pole-with-neutral arrangement the Eaton ships as.
How fast can I get the Eaton DH221NDK delivered?
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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 Eaton DH221NDK come with a warranty?
Absolutely. The Eaton DH221NDK 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 Eaton DH221NDK?
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