Eaton DH227NRK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH227NRK
Quick Summary
Eaton DH227NRK heavy duty fusible safety switch protects 3-phase control circuits in industrial facilities. When downtime and electrical faults threaten production, a robust protective device with UL listing and rugged construction reduces risk and maintenance costs. This solution features a NEMA 3R enclosure, a Class L fuse provision, and enhanced visible blade for quick status checks, delivering reliable service in harsh environments. With an 800 A rating and compatibility for motors up to 250 hp, it aligns with modern plant protection standards while offering straightforward installation and long-term operating cost savings. This makes it a practical choice for engineers seeking dependable protection and compliance in industrial electrical systems.
Product Information
Extended Description
DH227NRK Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 800 A, NEMA 3R, Painted galvanized steel, Class L, Two-pole, Three-wire, 240 V, Max Hp: 100, 250 hp (3PH @ Std fuse/time delay), (4)#1/0-(4)750 kcmil Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH227NRK
UPC
782113589671
Product Length/Depth
65 in
Product Height
13 in
Product Width
27 in
Product Weight
175 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
3-Phase hp ratings shown are grounded B phase ratings; UL listed
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class L
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
Product Category
Heavy Duty, Fusible with neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH227NRK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: High current and motor protection. Business Impact: Enables reliable control of large motors up to 250 hp at 240V, reducing fuse changes and downtime. Application: Large pumps, conveyors, and fans in heavy industry. Feature: Rugged enclosure for challenging environments. Business Impact: NEMA 3R, painted galvanized steel enclosure withstands outdoor and damp locations, lowering maintenance costs. Application: Outdoor switchgear, protected mechanical rooms, and washdown areas. Feature: Class L fuse with neutral configuration. Business Impact: Safe, code-compliant protection with predictable interruption characteristics, minimizing arc-flash risk and facilitating maintenance. Application: Industrial motor circuits requiring precise fuse protection. Feature: Enhanced visible blade and UL-listed reliability. Business Impact: Quick status verification reduces troubleshooting time and ensures compliance with safety standards. Application: Daily operations and routine inspections in harsh environments. Feature: Compatible termination options and dimensions. Business Impact: Accepts large conductor sizes up to 750 kcmil Al and neutral wiring, streamlining installation and spare part consistency. Application: Projects with long conduit runs and mixed aluminum wiring in control panels. Feature: Proven warranty and catalog support. Business Impact: One-year installation or 18-month shipment warranty reduces total cost of ownership and improves service planning. Application: Procurement and maintenance planning for durable switching devices.
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FAQs
DH227NRK is a two-pole, fusible switch with neutral, designed for three-wire circuits. Terminations accommodate conductors from #1/0 to 750 kcmil aluminum, enabling flexible wiring and straightforward field assembly.
Yes. It features a NEMA 3R enclosure with painted galvanized steel, making it suitable for outdoor and damp locations while providing durability against corrosion and impact.
The unit is rated for 800 A at 240 V and supports motors up to 250 hp (3-phase with standard fuse/time delay), suitable for large motors in heavy-duty applications.
It is UL Listed and NEC 230.62 barrier compliant, with a NEMA 3R enclosure—combining safety certification and protection for controlled motor circuits.
Eaton provides a policy of 25-000: one year from installation or 18 months from shipment, whichever occurs first, supporting long-term reliability and service planning.