Eaton DH325NDKLW Heavy Duty Fusible Safety Switch - UL
Part Number: DH325NDKLW
Quick Summary
Eaton heavy duty fusible safety switch DH325NDKLW delivers safe, reliable power control for industrial equipment. This unit minimizes downtime by delivering robust protection and straightforward maintenance in demanding electrical rooms. It carries UL Listed certification, NEC 230.62 barrier compliance, and a rugged NEMA 12/3R enclosure with Class H fusing, supporting dependable performance in harsh environments. For manufacturers and integrators, the DH325NDKLW combines high current capability with clear wiring configurations and a neutral connection, enabling efficient installation in 3-pole, four-wire systems. By selecting a proven safety switch from a trusted brand, plants can reduce spare parts inventory, simplify testing, and accelerate panel assembly without compromising protection.
Product Information
Extended Description
DH325NDKLW Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blade, 400 A, NEMA 12/3R, Class H, Neutral, Three-pole, Four-wire, 240 V, Max Hp: 50, 125/ 50 hp (3PH @Std, TD/250 Vdc), (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH325NDKLW
UPC
782114196410
Product Length/Depth
11.2 in
Product Height
57.47 in
Product Width
22.66 in
Product Weight
135 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
For 2-pole applications; use outside poles of 3-pole switch
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
50, 125/ 50 hp (3PH @Std, TD/250 Vdc)
NEMA rating
NEMA 12/3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Feature: Fusible with neutral, three-pole, four-wire design. Business Impact: Provides full control of power circuits with a neutral return path, enabling safe and efficient motor and heater protection. Application: Ideal for 240 V control circuits in industrial lines. The design improves fault isolation and reduces nuisance tripping in mixed-load panels. Feature: NEMA 12/3R enclosure with painted galvanized steel construction. Business Impact: Delivers reliable enclosure protection against dust, moisture, and corrosion, lowering maintenance costs. Application: Suitable for outdoor and indoor electrical rooms in harsh plants. Feature: Class H fuse provision. Business Impact: Supports high interrupting capacity and fast fault clearing, protecting downstream equipment and reducing arc-flash exposure. Application: Critical machinery and main distribution points. Feature: 400 A amperage rating with 50 hp standard and 125/50 hp at 250 Vdc. Business Impact: Enables higher power densities and smaller switchgear footprints, reducing panel size and wiring complexity. Application: Main disconnects for heavy loads in process lines. Feature: UL Listed with NEC 230.62 barrier compliance and 3R/NEMA protection. Business Impact: Simplifies regulatory compliance and safety auditing, accelerating procurement cycles. Application: Industrial installations requiring regulatory alignment and durable protection.
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FAQs
Yes. The DH325NDKLW is designed as a three-pole, four-wire system with neutral, rated for 240 V control circuits. This configuration supports reliable protection of motors and auxiliary loads while maintaining straightforward wiring and safe isolation in industrial panels.
This unit is UL Listed and NEC 230.62 barrier compliant, with a NEMA 12/3R enclosure. These certifications ensure electrical safety, proper enclosure protection, and compliance with common industrial installation requirements, simplifying audits and regulatory adherence.
The DH325NDKLW measures 11.2 inches in depth, 57.47 inches in height, and 22.66 inches in width, with an approximate weight of 135 pounds. Plan for adequate mounting clearances and support framing to accommodate its three-pole, four-wire configuration.
The fused, neutral-enabled design simplifies fault isolation and reduces nuisance trips. UL and NEC-compliant barriers help upgrade safety documentation, while the rugged NEMA enclosure withstands harsh plant environments, leading to fewer field repairs and shorter downtime during routine maintenance.
Ensure the enclosure is mounted in a clean, accessible location with proper environmental protection (NEMA 12/3R suitability). Verify that the incoming supply aligns with 240 V three-pole, four-wire configurations and that Class H fuses are used. The unit supports straightforward integration into standard power-distribution panels and motor-control centers.