Eaton DH221NRK-CSA Heavy Duty Fusible Safety Switch - CSA/UL
Part Number: DH221NRK-CSA
Quick Summary
Eaton heavy duty fusible safety switch provides reliable circuit protection for motors and control panels in industrial environments. In real-world installations, safety and uptime hinge on clear labeling, easy maintenance, and dependable fault isolation. This design delivers that with enhanced visible blade indicators, cartridge fuse protection, and a neutrally wired configuration suitable for 1- and 3-phase systems. It carries UL Listed and CSA Certified marks, with NEC 230.62(C) barrier compliance and a NEMA 3R enclosure, supporting durable operation in outdoor and damp locations. For facilities aiming to meet code requirements while reducing downtime, the DH221NRK-CSA offers a robust, scalable solution for 240 V, up to 30 A motor circuits and beyond.
Product Information
Extended Description
DH221NRK-CSA Eaton: Eaton Custom single-throw fused safety switch, Enhanced visible blade, line/load labels, 2 blade, 30 A, N3R, Cartridge, Two-pole, Three-wire, 240 V, Max Hp: 1.5, 3 hp/3, 7.5 hp/5 hp (1,3PH @ Std fuse/time delay/250 Vdc), #14-#2 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH221NRK-CSA
UPC
786685223056
Product Length/Depth
15 in
Product Height
7 in
Product Width
9.5 in
Product Weight
9 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
CSA Certified UL Listed
Enclosure
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
30A
HP rating - max
1.5, 3 hp/3, 7.5 hp/5 hp (1,3PH @ Std fuse/time delay/250 Vdc)
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 - DH221NRK-CSA
Two-pole fusible switch with cartridge protection and a neutral conductor provides safe, labeled disconnect for motor circuits. This configuration simplifies fault isolation, improves fault clearance times, and enables selective coordination with compatible fuses, reducing the risk of unnecessary outages. The 240 V, 30 A rating supports a wide range of small to mid-size motors, including 1.5 to 7.5 hp variants depending on the chosen fuse/time-delay arrangement, making it a versatile choice for industrial drive trains. The NEMA 3R enclosure protects against rain, dust, and incidental washdowns, enabling reliable outdoor or damp indoor use while maintaining code-compliant safety margins. Line/load labeling and an enhanced visible blade reduce installation errors and expedite maintenance checks, translating to lower commissioning time and safer disconnections. UL Listed and CSA Certified, with NEC 230.62(C) barrier compliance, provide regulatory confidence for procurement and audits. The compact footprint (15 in L × 9.5 in W × 7 in H) and 9 lb weight simplify panel mounting and retrofit projects in existing control cabinets, while compatibility with #14–#2 Cu/Al conductors supports straightforward wiring and long-term cost efficiency.
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FAQs
The DH221NRK-CSA is a two-pole, fusible safety switch with a neutral, designed for 240V circuits and up to 30A. It uses a cartridge fuse and accepts conductors sized #14 to #2 Cu/Al. It features enhanced line/load labeling and an ergonomic enclosure footprint (15 in depth, 9.5 in width, 7 in height) for straightforward mounting in standard control cabinets. When wiring, follow NEC guidelines and ensure proper clearance for safe operation and maintenance access.
This model is UL Listed and CSA Certified, with NEC 230.62(C) compliant barrier labeling. It uses a NEMA 3R enclosure, suitable for outdoor or damp indoor environments, and provides a secure, code-compliant disconnect for motor circuits. The combination of these certifications and the protective enclosure minimizes compliance risk in audits and supports procurement with recognized safety marks.
Ideal for small to mid-size motors in 1- and 3-phase systems, the DH221NRK-CSA supports a max HP range of 1.5, 3 hp/3, 7.5 hp/5 hp depending on the time-delay fuse configuration and 250 VDC considerations. It is well-suited for protective switching in control panels and motor starters where reliable fault isolation and serviceability are priorities.
The switch comes in a NEMA 3R painted galvanized steel enclosure, designed for durability in outdoor and damp indoor locations. Its compact dimensions (15 in L × 9.5 in W × 7 in H) and 9 lb weight facilitate installation in tight panels or retrofit projects, while providing robust resistance to weather and physical impact typical in industrial settings.
Eaton backs the DH221NRK-CSA with a one-year warranty from the installation date or eighteen months from shipment, whichever occurs first. This coverage aligns with Eaton’s standard support policy and provides peace of mind for commissioning, maintenance planning, and parts replacement in automated facilities.