Eaton DH426SNRKLP Heavy Duty Safety Switch - UL Listed

Part Number: DH426SNRKLP
Manufacturer
Eaton
Part number
DH426SNRKLP

Quick Summary

The Eaton DH426SNRKLP heavy duty safety switch provides high-current isolation for industrial equipment. Many engineers struggle with disconnect reliability in harsh environments and nuisance trips that halt production. It carries UL Listed certification and is built around a NEMA 3R enclosure with Posi-Lok engagement and Series K construction for secure, maintenance-friendly operation. This combination supports faster commissioning and predictable downtime while enabling clean integration with 240V, 600A circuits in four-pole configurations for main disconnects. Its robust design also simplifies retrofits on existing panels and aligns with safety standards across manufacturing facilities.

Product Information

Extended Description

DH426SNRKLP Eaton: Eaton Quick Connect Safety Switch, Heavy Duty, Single-Throw, 600A, 240V, 4P, Fusible with switched neutral, Series K, NEMA 3R, Posi-Lok
Product Name
Eaton quick connect heavy duty safety switch
Catalog Number
DH426SNRKLP
UPC
786685373980
Product Length/Depth
32.87 in
Product Height
74.34 in
Product Width
16.1 in
Product Weight
370 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.
Certifications
UL Listed
Special features
Posi-Lok
Type
Heavy Duty, Single-Throw
Amperage Rating
600A
Number Of Poles
Four-pole
Voltage rating
240V
Enclosure
NEMA 3R
Fuse configuration
Fusible with switched neutral
Series
Series K
Feature → Four-pole construction delivers uniform current carrying and simplifies wiring, reducing imbalance during switching. Business Impact → Improves motor protection and reduces thermal stress on feeders, extending equipment life in demanding manufacturing environments. Application → Ideal as a main disconnect for large motors and conveyors requiring reliable 600A at 240V, with fusible design and switched neutral for controlled energy release. Feature → Posi-Lok mechanism provides secure handle engagement, preventing accidental operation and ensuring repeatable actuation in dusty or humid plants; Business Impact → Fewer nuisance trips, lower maintenance costs, faster commissioning; Application → Outdoor substations and wash-down areas where reliability matters. Feature → NEMA 3R enclosure adds outdoor suitability; Business Impact → Reduces enclosure damage risk and downtime; Application → Outdoor equipment and damp processing lines. Feature → UL Listed certification ensures regulatory alignment; Business Impact → Simplifies procurement approvals and compliance; Application → Controls in industrial panels and safety-critical disconnects. Feature → Series K design with four-pole, fusible with switched neutral; Business Impact → Streamlines wiring schemes and reduces design complexity; Application → Retrofit and new installations in 600A feeders. Feature → Weight of 370 lb plus rugged construction; Business Impact → Superior durability in harsh environments; Application → Plant-floor disconnects with demanding mechanical demands.

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FAQs

For installation, ensure compatibility with 600A, 240V circuits and four-pole configurations. The unit weighs 370 lb, so use proper lifting equipment and secure mounting. Verify enclosure mounting clearances for a NEMA 3R outdoor-rated installation and plan for Posi-Lok engagement during wiring to ensure secure operation and safe maintenance access.
The DH426SNRKLP is a four-pole, fusible heavy-duty safety switch rated at 600A and 240V, designed for robust industrial protection. It supports a switched neutral configuration and Series K construction, enabling reliable isolation for large motors and feeders in demanding environments while maintaining compliant control panel integration.
Yes. The enclosure is NEMA 3R rated, providing protection suitable for outdoor or damp indoor locations. Combined with UL Listed certification and solid mechanical construction, the switch remains reliable in harsh conditions, making it appropriate for outdoor substations, yard applications, and exposed process lines.
The primary certification is UL Listed, ensuring compliance with recognized safety standards. The device uses a NEMA 3R enclosure for robust environmental protection and features Posi-Lok for secure operation. These attributes support regulatory alignment, safer maintenance, and easier procurement in industrial facilities.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. For maintenance, follow standard practice: regular visual inspections, verify Posi-Lok engagement, check for signs of wear on fusible elements, and schedule periodic servicing aligned with your plant’s preventive maintenance program to sustain reliability.