Eaton 30A Three-Pole Fusible S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$261.00
Eaton 30A Three-Pole Fusible Safety Switch

Eaton 30A Three-Pole Fusible Safety Switch

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Model: DH321FGK

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

$261.00
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Eaton Enhanced Visible Blade Fusible Safety Switch, Three-Pole, Painted Steel

The Eaton Enhanced Visible Blade Fusible Safety Switch is a heavy-duty disconnect built for dependable circuit protection in commercial and industrial applications. Rated at 240V with a painted steel enclosure, this three-pole, three-wire fusible switch is designed without a neutral and is suitable for service entrance use when a Neutral Kit is installed. UL Listed for code-compliant performance, it accepts Class H fuses and #14-#2 Cu/Al conductors for flexible installation.

Key Features

  • Reliable Disconnect: Provides dependable circuit disconnect and overcurrent protection.
  • Durable Construction: Painted steel enclosure for indoor electrical installations.
  • Three-Pole, Three-Wire: Configured for three-pole, three-wire circuits without a neutral conductor.
  • Fusible Design: Accepts Class H fuses for branch-circuit overcurrent protection.
  • Voltage Rating: 240V rating for standard commercial and industrial circuits.
  • Wire Range: Accommodates #14-#2 Cu/Al conductors for varied installation needs.
  • Enhanced Visible Blade: Lets installers visually confirm switch position for added safety during service and maintenance.
  • Service Entrance Ready: Suitable for service entrance use with a Neutral Kit installed.

Certifications & Compliance

  • UL Listed
  • Suitable for Service Entrance Use with Neutral Kit Installed

Technical Specifications

  • Department: Electrical
  • Voltage rating: 240V
  • Type: Heavy duty fusible safety switch
  • Number Of Poles: Three-pole

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Service Entrance Disconnect Switching
  • Motor Circuit Disconnect and Overcurrent Protection
  • Panelboard and Load Center Wiring
  • Indoor Electrical Installations

Why Eaton?

Eaton's Enhanced Visible Blade Safety Switch combines a rugged painted steel enclosure with UL Listed performance for dependable, code-compliant disconnect switching. The visible blade design gives electrical professionals confidence in switch position at a glance, supporting safer installation and maintenance across commercial and industrial electrical systems.

Variant Specifications

NEMA Enclosure RatingAmperageSKU
NEMA 1 (Enhanced Visible Blade, indoor)30 amperesDH321FGK
NEMA 3R (Painted Galvanized, rainproof)30 amperesDH321FRK
NEMA 3R (Painted Galvanized, rainproof)100 amperesDH323FRK
NEMA 1 (Enhanced Visible Blade, indoor)100 amperesDH323NRK
NEMA 1 (Enhanced Visible Blade, indoor)200 amperesDH324FGK
NEMA 1 (Enhanced Visible Blade, indoor)400 amperesDH325FRK
NEMA 1 (Enhanced Visible Blade, indoor)600 amperesDH326NGK
NEMA 1 (Enhanced Visible Blade, indoor)1200 amperesDH328FRK

Manufacturer Resources

Product Specs

Listing:
UL Listed
Department:
Electrical
Number Of Poles:
Three-pole
Product Type:
Safety Switch
Certifications:
UL Listed
Voltage Rating:
240V
Amperage Rating:
30A
Product Group:
Wiring Devices

Eaton DH321FGK – Frequently Asked Questions

1) Can the Eaton DH321FGK safety switch be used outdoors?
No. The DH321FGK is the NEMA 1 indoor enclosure, so it belongs inside a dry mechanical room or electrical room. For a wet or outdoor location at the same 30A, order the DH321FRK, which is the NEMA 3R painted galvanized rainproof version.
2) Does the Eaton DH321FGK disconnect come with fuses?
No fuses are supplied. It is a fusible switch that accepts Class H fuses, so you order three 240V Class H fuses sized to the load, up to the 30A rating of the switch, separately.
3) I need a three-pole fusible disconnect rated for a 480V or 600V circuit instead of 240V - what should I use?
The Eaton DH321FGK family of heavy duty fusible safety switches is rated 240V, so it is not the choice for a 480V or 600V feeder. For those circuits, the ABB Spec-Setter heavy-duty fusible safety switch TC-72367 is a 3-pole, 600V AC unit in a NEMA 1 enclosure, and the ABB THN3365A is a 400A 3-pole 600V heavy-duty switch, also NEMA 1. Both keep the three-pole fusible arrangement while raising the voltage class.
4) The disconnect is going on a stainless washdown wall outdoors - is there a fused switch with a better enclosure than painted steel?
The Eaton heavy duty fusible switches come as NEMA 1 indoor painted steel or NEMA 3R painted galvanized rainproof, such as the 30A DH321FRK. Where a corrosive or washdown environment is involved, the Square D VisiPacT heavy duty fused safety switch VH324NDSGL is built in a NEMA 4X stainless steel enclosure, which is the step up from a painted enclosure for those conditions.
5) Is the Eaton DH321 a heavy duty or general duty safety switch?
Heavy duty. The DH3 line is the heavy-duty fusible type, which is what commercial and industrial specs normally call for. General duty switches, like the ABB TG-Series Spec-Setter, are the lighter class typically used on residential and light commercial work.
6) What wire size can I land in the Eaton 30A three-pole fusible safety switch?
The lugs take #14 through #2 conductors, copper or aluminum. That covers the full practical range for a 30A feeder or motor circuit and lets you land oversized aluminum for voltage drop on a long run.
7) I need more than 30 amps on the same Eaton DH3 disconnect style. What sizes are available?
The DH3 heavy-duty line runs well past 30A: 100A (DH323NRK indoor, DH323FRK rainproof), 200A DH324FGK, 400A DH325FRK, 600A DH326NGK and 1200A DH328FRK. All are three-pole. Match the amperage to your overcurrent device and feeder, not to the motor nameplate alone.
8) Is a fusible disconnect the right choice, or should I use a non-fused switch?
Use the fusible DH321 when the disconnect also has to provide overcurrent protection for the branch or motor circuit, since the Class H fuses do that job locally. If the circuit is already protected upstream and you only need a local means of disconnect, a non-fused switch is simpler, for example the Square D VisiPacT heavy duty unfused switch in NEMA 1.
9) This is a light commercial 240V branch circuit - is there a simpler alternative to a heavy duty fusible switch?
The Eaton DH-series switches are heavy duty fusible safety switches. For lighter service where heavy duty construction is not required, the ABB TG-Series Spec-Setter is a general duty fusible safety switch, so it is the general duty counterpart rather than a heavy duty unit. Confirm the voltage, amperage and fuse class required by the circuit before substituting a general duty switch for a heavy duty one.
10) I want to see blade position at a glance when I lock out - which switches give me that?
The Eaton DH-series switches use an Enhanced Visible Blade design so an installer can visually confirm switch position during service and maintenance. Among comparable heavy duty fused switches, the Square D VisiPacT VH324NDSGL carries the VisiPacT series designation and is a heavy duty fused switch in a NEMA 4X stainless enclosure, and the unfused VisiPacT VHU361N is the NEMA 1 version.
11) I need 400A three-pole in a NEMA 1 enclosure - what are my options?
Eaton covers 400A three-pole NEMA 1 with the DH325FRK, rated 240V. If the application is a 600V system, the ABB THN3365A is a 400A 3-pole 600V heavy-duty safety switch in NEMA 1. Match the switch to the system voltage first, then the ampere rating.
12) What does the enhanced visible blade feature actually do on this Eaton disconnect?
It lets the electrician see the blade position through the enclosure, so open can be confirmed visually before working the circuit rather than trusting the handle alone. That matters during lockout/tagout and routine service on motor and panel feeders.
How fast can I get the Eaton DH321FGK 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 Eaton DH321FGK come with a warranty?
Absolutely. The Eaton DH321FGK 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 DH321FGK?
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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