Eaton DH221FDK Fusible Safety Switch - UL Listed
Part Number: DH221FDK
Quick Summary
The Eaton DH221FDK fusible safety switch protects electrical circuits in industrial panels and service entrances. Many engineers struggle with downtime and safety compliance when switching high-current loads. It is UL Listed, NEC 230.62 barrier compliant, and designed with a NEMA 12/3R enclosure to withstand dust, moisture, and rugged shop environments. This unit features a heavy-duty two-pole, fusible without neutral configuration rated at 30A and 240V, with Class H fuses for reliable protection. By combining rugged construction with straightforward service-entrance compatibility, it helps reduce maintenance calls and accelerate panel upgrades. The combination of protective enclosure, compliance features, and solid OEM support delivers tangible value for industrial facilities and machine builders.
Product Information
Extended Description
DH221FDK Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 30 A, NEMA 12/3R, Painted galvanized steel, Class H, Fusible without neutral, Two-pole, Two-wire, 240 V, Max Hp: 1.5, 5 hp (1PH @240V/250 Vdc), #14-#2 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH221FDK
UPC
782114632109
Product Length/Depth
18 in
Product Height
7.5 in
Product Width
9.5 in
Product Weight
14 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Suitable for service entrance use with a neutral or ground lug kit installed
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Two-pole
Number of wires
2
Type
Heavy duty fusible safety switch
Amperage Rating
30A
HP rating - max
1.5, 5 hp (1PH @240V/250 Vdc)
NEMA rating
NEMA 12/3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
Feature: Two-pole, 30A, 240V fusible switch delivers clean isolation of faulted circuits, helping prevent cascading trips in heavy-load equipment and protecting control power to motors, drives, and sensors. Business Impact: Reduces downtime by containing faults at the source, lowers arc flash exposure, minimizes downstream component damage, and improves maintenance planning. Application: Ideal for motor control centers, conveyors, packaging lines, and line-start panels in manufacturing facilities where quick and safe disconnects are required and an 18 in depth footprint fits standard enclosures. Feature: NEMA 12 and NEMA 3R painted galvanized steel enclosure. Impact: Enclosure provides dust, moisture, and corrosion resistance, reducing corrosion-related maintenance and repainting costs in harsh factory environments and semi-outdoor spaces. Application: Install in indoor plant rooms or outdoor rated service entrances with proper mounting hardware and drainage considerations to extend service life. Feature: Fuse class provision Class H and fusible without neutral. Impact: Class H fuses deliver robust interrupting ratings for motors, fans, and power distribution circuits, while the neutral-less configuration simplifies wiring and lug kit integration. Application: Service entrances and distribution panels where neutral lug kits are installed, or where separate grounding provisions are used to meet NEC requirements. Feature: Two-pole, two-wire design rated at 240V. Impact: Supports straightforward wiring, reliable fault isolation, and efficient protection for single-phase circuits across a wide range of loads. Application: Plant power distribution and machine control lines in assembly, packaging, and processing environments, with compatible conductor sizes #14-#2 Cu/Al as noted. Feature: UL Listed and NEC barrier compliant. Impact: Regulatory compliance and safer installations minimize risk, warranty concerns, and downtime during audits, while enabling safer service access for technicians. Application: Certified protection for industrial facilities and critical control panels, suitable for service entrance use with neutral or ground lug kits as indicated in catalog notes.
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FAQs
To install the DH221FDK for service entrances, mount the unit within a suitable indoor or protected outdoor location per NEMA 12/3R guidelines. Connect conductors in the #14-#2 Cu/Al range, ensure the 240V supply and 30A rating are correct, and use the appropriate neutral or ground lug kit if required by the service entrance configuration. Adhere to NEC 230.62 barrier requirements for safety and accessibility.
The DH221FDK features a 30A amperage rating, 240V voltage rating, a two-pole configuration, and fusible operation without a neutral. It comes in a NEMA 12/3R painted galvanized steel enclosure and uses Class H fuses. It supports conductors #14-#2 Cu/Al and offers motor protection and service entrance compatibility for purchasing decisions.
Yes, the enclosure is rated NEMA 12 and NEMA 3R, providing protection against dust, moisture, and certain outdoor conditions when installed with proper mounting and sealing. For outdoor use, ensure drainage and weather-protective installation practices and verify local code compliance to maximize longevity in harsh environments.
The DH221FDK is UL Listed and NEC barrier compliant, ensuring safe operation and regulatory alignment for industrial electrical installations. Its service entrance compatibility with lug kits, as noted in catalog documentation, supports compliant integration in new builds and retrofits of electrical distribution panels.
Expect improved fault isolation and reduced downtime due to fast acting Class H fusing and robust enclosure protection. Regular maintenance involves inspecting fuses and terminations, ensuring lug kits stay secure, and verifying a clean disconnect path, which can translate to lower replacement costs and higher equipment uptime in demanding manufacturing environments.