Eaton DH664FDK Heavy Duty Safety Switch - NEMA 12, UL Listed
Part Number: DH664FDK
Quick Summary
Eaton DH664FDK Heavy Duty Safety Switch isolates power for heavy commercial and industrial panels. Operators often struggle with safe lockout/tagout and downtime due to inadequate isolation—this switch delivers robust protection. UL Listed enclosure protection with NEMA 12 rating and optional NEMA 3R rain exposure supports both indoor systems and protected outdoor service areas, aligning with safety standards. Designed for rugged industrial environments, it streamlines panel builds and reduces maintenance costs by delivering reliable performance and long service life, while supporting efficient integration into automation and power distribution architectures.
Product Information
Extended Description
DH664FDK Eaton: Eaton heavy duty single-throw non-fused safety Switch, 200 AMP, 6-Pole, Heavy Duty Safety Switch, Fusible without Neutral, 600 VAC, 250 VDC, Nema12
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH664FDK
UPC
782113880181
Product Length/Depth
11.63 in
Product Height
35.38 in
Product Width
24.57 in
Product Weight
65 lb
Certifications
UL Listed
Catalog Notes
Can be field modified to meet NEMA 3R rainproof requirements when a factory provided drain hole is opened
Enclosure
NEMA 12
Fuse configuration
Non-fusible
Number Of Poles
Six-pole
Type
Single-throw
Amperage Rating
200A
NEMA rating
NEMA 12, NEMA 3R
Voltage - max
600 V
Voltage rating
600 V
Application
Heavy commercial and industrial
Product Category
Heavy Duty, Non-Fusible
Series
K-Series
Feature: 200A amperage rating and a six-pole, single-throw, non-fusible configuration provide scalable power control for large industrial loads. Business Impact: Enables safer lockout/tagout procedures and reduces switching-related downtime, improving line availability. Application: Suitable for heavy commercial and industrial feeders within power distribution panels. Feature: NEMA 12 enclosure with UL Listed compliance ensures protective enclosure and safety documentation for projects with strict vendor qualifications. Business Impact: Improves regulatory confidence and simplifies audit readiness, lowering risk during commissioning. Application: Ideal for indoor installations in service rooms and control cabinets. Feature: 600 VAC and 600 VDC voltage ratings extending the device’s operating envelope for mainstream industrial applications. Business Impact: Supports single- and multi-branch configurations without external switching gear, reducing footprint and wiring complexity. Application: Industrial automation, manufacturing lines, and equipment rooms with mixed AC/DC loads. Feature: Field-modifiable to meet NEMA 3R rainproof requirements when a drain hole is opened per catalog notes. Business Impact: Enables outdoor or semi-exposed installations without additional enclosure upgrades, lowering total cost of ownership. Application: Outdoor panels and protected external equipment areas. Feature: Six-pole, non-fusible design and robust UL Listed certification provide reliable isolation for demanding environments. Business Impact: Improves safety, equipment protection, and maintenance predictability, supporting compliance with industry standards. Application: Large motor feeders, press lines, and processing equipment in heavy industry.
Get a Quick Quote for a Eaton DH664FDK
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DH664FDK?
Enquire Now
FAQs
Plan for a six-pole, single-throw, non-fusible switch with a 24.57 in width, 35.38 in height, and 11.63 in depth. The unit weighs 65 lb and uses a NEMA 12 enclosure. Factor space for mounting hardware, wiring ducts, and clear access for safe operation and servicing. Consider the potential for field modification to meet NEMA 3R rainproof requirements if outdoor exposure is expected.
The DH664FDK is rated for 200A, with a six-pole, single-throw, non-fusible configuration. It supports up to 600 VAC and 600 V DC, making it suitable for large industrial feeders and mixed-load applications. This configuration provides reliable isolation without integral fusing, reducing fuse replacements and simplifying maintenance in heavy-duty systems.
Yes. The standard enclosure is NEMA 12, designed for indoor, dust- and moisture-protected installations. Catalog notes indicate the unit can be field modified to meet NEMA 3R rainproof requirements when a factory-provided drain hole is opened, enabling outdoor or rain-prone applications without a separate enclosure upgrade.
The DH664FDK carries UL Listed certification, signaling compliance with essential safety and performance standards. For engineers, this reduces qualification risk during audit and procurement, supports regulatory alignment, and simplifies integration into certified electrical assemblies across industrial facilities.
By delivering reliable isolation and a robust enclosure, the DH664FDK minimizes unexpected shutdowns and arc-flash exposure, reducing maintenance frequency and downtime costs. Its field-modifiable NEMA 3R option, durable construction, and standardization with 200A circuits help streamline spare parts planning and panel assembly, delivering favorable total cost of ownership for heavy industry projects.