Eaton DH327FDK Heavy Duty Fusible Safety Switch - NEMA12/3R
Part Number: DH327FDK
Quick Summary
Eaton DH327FDK is a heavy-duty fusible safety switch for industrial power distribution. Engineers often face reliability, heat, and compliance challenges in rugged environments, especially at service entrances. This unit carries UL Listed certification and NEC 230.62 compliant barrier, reinforcing safety and regulatory adherence. The NEMA 12/3R enclosure provides durable protection against dust, moisture, and incidental contact, while the Class L fuse provision supports reliable protection of feeders. In practice, this switch reduces downtime and maintenance costs by simplifying wiring, stock compatibility, and fuse management, enabling faster installations and predictable performance. For projects requiring high current (800 A) with proven durability, the DH327FDK delivers both safety and business value.
Product Information
Extended Description
DH327FDK Eaton: Eaton Heavy duty single-throw fused safety switch, 800 A, NEMA 12/3R, Painted galvanized steel, Class L, Three-pole, Three-wire, 240 V, Max Hp: 100 hp (3PH @Std), (4)#1/0-(4)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH327FDK
UPC
782113589824
Product Length/Depth
12.75 in
Product Height
71.75 in
Product Width
24.9 in
Product Weight
168 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 L
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
800A
HP rating - max
100 hp (3PH @Std)
NEMA rating
NEMA 12/3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
Feature → Business Impact → Application: The 800 A rating delivers robust protection for feeders and motors, reducing the risk of nuisance trips and unscheduled downtime in high-load environments, ideal for large manufacturing lines. Feature → Application: The 240 V operation and three-pole design enable straightforward integration into three-phase distribution, minimizing wiring complexity and improving installation speed on new builds or retrofits. Feature → Business Impact → Application: NEMA 12/3R enclosure with painted galvanized steel offers dependable dust and moisture resistance, extending service life in harsh plant floors and outdoor areas. Feature → Application: Class L fuse provision and fusible without neutral configuration simplify fuse management while maintaining precise overcurrent protection during motor start-up. Feature → Business Impact → Application: Service-entrance compatibility with lug-kit options enhances flexibility for existing facilities undergoing expansion or code-compliant upgrades.
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FAQs
The DH327FDK is a three-pole, fusible switch rated at 800 A and 240 V. It is designed for NEMA 12/3R enclosures and can be configured for fusible without neutral. For service entrances, consider a neutral or ground lug kit as recommended in the catalog notes. Use appropriate wiring gauges up to (4)750 kcmil Cu/Al per the specification and mount on a compatible panel base or enclosure to ensure secure, code-compliant installation.
Key ratings include 800 A amperage, 240 V, and a maximum of 100 hp (3PH @Std). The device is three-pole with three-wire connections and uses Class L fuse provisions. It is fusible without neutral, making it suitable for main disconnect applications where precise overcurrent protection is required and neutral conductors are not involved in the fault path.
Yes. The DH327FDK is designed for service entrance use and large-motor control applications. Its NEMA 12/3R enclosure provides durable protection in industrial environments, and the lug-kit compatibility option supports integration with existing feeders and service panels. The 800 A rating supports high-current service entrances, reducing the need for frequent equipment upgrades.
The DH327FDK carries UL Listed certification and NEC 230.62 barrier compliance, ensuring electrical safety and code conformity. These certifications support risk reduction during audits and help meet mandatory regulatory requirements for service entrances and industrial installations.
Plan for periodic fuse inspection and replacement with Class L fuses, per system load profiles. The unit’s heavy-gauge galvanized enclosure resists harsh environments, supporting longer intervals between maintenance. Warranty terms follow Eaton’s policy (one year from installation or eighteen months from shipment), and standard spare parts for fuses and lugs help minimize downtime during service.