Eaton DH227FRKV Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH227FRKV
Quick Summary
Eaton heavy duty fusible safety switch isolates and protects large 3-phase circuits in industrial facilities. This rugged device safely disconnects power in control panels, switchgear, and motor rooms, reducing exposure to live parts during maintenance. For engineers facing tight service windows, the DH227FRKV offers dependable protection with minimal commissioning effort. It is UL Listed and NEC 230.62 (C) compliant with a barrier, and it arrives in a durable NEMA 12/NEMA 3R enclosure to withstand dirty, damp, or outdoor environments. By combining a cartridge fuse configuration with neutral, this switch supports reliable motor protection, enhances safety, and lowers lifecycle costs through longer service intervals and fewer nuisance trips.
Product Information
Extended Description
DH227FRKV Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blade, 800 A, NEMA 12/3R, Painted galvanized steel, Cartridge, Three-wire, 240 V, Max Hp: 100, 250 hp (3PH @ Std fuse/time delay), (4)#1/0-(4)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH227FRKV
UPC
786685973296
Product Length/Depth
18 in
Product Height
11 in
Product Width
9 in
Product Weight
213 lb
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Catalog Notes
Heavy Duty Safety Switch (HDSS)
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Cartridge
Fuse configuration
Fusible with neutral
Number Of Poles
Two-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
800A
HP rating - max
100, 250 hp (3PH @ Std fuse/time delay)
NEMA rating
NEMA 3R
Voltage rating
240V
Feature: Rugged painted galvanized steel enclosure rated for NEMA 12 and NEMA 3R use. Business Impact: Delivers reliable protection in both indoor and outdoor environments, reducing corrosion risk and enabling simpler installation across plant rooms and exterior equipment. Application: Ideal for harsh manufacturing floors or outdoor drives where weather and dust exposure are concerns. Feature: Cartridge fuse provision with neutral and three-wire, two-pole design. Business Impact: Simplifies fuse replacement and stock management, minimizes downtime during maintenance, and supports fast restoration of power for critical loads. Application: Motor control centers and heavy-duty distribution where high fault-current protection is required. Feature: Amperage rating of 800A and voltage rating of 240V. Business Impact: Supports large industrial feeders and high-current motor circuits while maintaining safe disconnection capabilities. Application: Heavy-duty power distribution in stamping, extrusion, or process lines. Feature: HP rating of up to 250 hp (3PH @ Std fuse/time delay) and up to 100 hp standard. Business Impact: Enables design engineers to match switching devices to motor specifications, reducing oversizing and improving energy efficiency. Application: Industrial drives and large motors in continuous operation environments. Feature: Enclosure and compliance combination with NEC barrier and UL listing. Business Impact: Enhances safety compliance and helps streamline regulatory audits, lowering risk and potential downtime due to non-compliance. Application: Facilities requiring formal safety certification and robust physical protection. Feature: Two-pole, three-wire configuration with large conductor compatibility up to (4) #1/0 -(4) 750 kcmil Cu/Al. Business Impact: Facilitates direct wiring of major feeders, reduces labor during termination, and improves long-term reliability in high-load installations. Application: Large electrical feeders feeding MCCs, transformer feeders, or main distribution panels.
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FAQs
For a proper install, mount the two-pole switch within a NEMA 12/3R enclosure, ensuring enclosure space for maintenance clearances per NEC. Wire with three wires including a neutral, sized to support up to (4) #1/0 to (4) 750 kcmil conductors copper or aluminum. Use cartridge fuses as specified and verify the 18 in depth, 11 in height, and 9 in width fit within the panel footprint. Confirm UL Listed status and set barrier per NEC 230.62 when required.
Yes. With an 800A amperage rating and 240V voltage rating, the DH227FRKV is designed to protect large 3-phase motor circuits. The HP rating supports up to 100 hp standard or 250 hp at time-delay conditions, enabling safe disconnection during overloads. Its fusible with neutral configuration provides reliable motor protection while accommodating large conductor connections.
The DH227FRKV is UL Listed and compliant with NEC 230.62 (C) barrier requirements. It uses a NEMA 12, NEMA 3R enclosure to withstand dust, moisture, and outdoor conditions where applicable. These certifications and ratings help meet regulatory audits, improve safety documentation, and simplify procurement for regulated industrial environments.
Scheduled maintenance should include inspecting the enclosure for corrosion, checking barrier integrity, and verifying fuse condition and conductor torque. Replace cartridge fuses only with the same type and rating, ensuring neutral and ground connections remain secure. Regularly verify enclosure seals and door latches, and document conformity with NEC and UL requirements during audits.
The DH227FRKV improves uptime by reducing maintenance time through easy cartridge fuse replacements and fast isolation. Its rugged NEMA 12/3R enclosure protects critical feeders in harsh environments, lowering replacement costs and reducing arc flash exposure. With UL listing and NEC barrier compliance, companies gain safety assurance and regulatory confidence, supporting longer service intervals and predictable operating expenses.