Eaton DH427SNGKLP Heavy Duty Safety Switch - UL Listed
Part Number: DH427SNGKLP
Quick Summary
Eaton DH427SNGKLP is a heavy duty safety switch for high-current motor control and power distribution in industrial facilities. Manufacturers often struggle with safe disconnects, arc-flash risk, and reliable fault isolation under demanding conditions. This model carries UL Listed certification for compliant electrical installations and uses a four-pole, fusible configuration with a switched neutral to ensure clear, deliberate disconnection. Built on the Series K platform with Posi-Lok, it delivers dependable operation in harsh environments and supports 800A at 240V within a NEMA 1 enclosure. From installation planning to site commissioning, this switch helps optimize reliability, safety, and total cost of ownership for industrial power systems.
Product Information
Extended Description
DH427SNGKLP Eaton: Eaton Quick Connect Safety Switch, Heavy Duty, Single-Throw, 800A, 240V, 4P, Fusible with switched neutral, Series K, NEMA 1, Posi-Lok
Product Name
Eaton quick connect heavy duty safety switch
Catalog Number
DH427SNGKLP
UPC
786685374024
Product Length/Depth
32.87 in
Product Height
85.59 in
Product Width
21.73 in
Product Weight
540 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
800A
Number Of Poles
Four-pole
Voltage rating
240V
Enclosure
NEMA 1
Fuse configuration
Fusible with switched neutral
Series
Series K
Commercial Distribution, Switching Devices, Volume 2, Tab 1
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - DH427SNGKLP
Feature: 800A amperage rating coupled with four-pole design. Business Impact: Supports high-load equipment and ensures robust fault isolation, reducing unplanned downtime. Application: Suitable for large motors and process lines in manufacturing facilities. Feature: Fusible with switched neutral configuration. Business Impact: Enables selective feeder protection and safe de-energization during maintenance, lowering arc flash exposure. Application: Ideal for controlled power distribution in mechanical rooms. Feature: Posi-Lok and Series K construction. Business Impact: Delivers reliable, positive engagement with simple field verification, reducing mis-wiring risk and installation errors. Application: Critical in retrofit projects and new builds with tight commissioning schedules. Feature: NEMA 1 enclosure. Business Impact: Provides basic indoor protection against dust and incidental moisture, supporting predictable performance. Application: Common in control panels, service entrances, and electrical rooms. Feature: 240V operation with 800A capacity. Business Impact: Improves protection for high-current circuits while maintaining compact footprint relative to heavy-duty switches. Application: Industrial power distribution, machine centers, and process lines. Feature: UL Listed certification. Business Impact: Simplifies compliance and acceptance testing, accelerating procurement cycles. Application: Institutional and industrial installations requiring recognized safety credentials.
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FAQs
The DH427SNGKLP is engineered for integration into industrial power distributions with a four-pole, 800A design and 240V rating. Its Series K construction and Posi-Lok feature simplify field mounting, alignment, and engagement in existing enclosures while maintaining NEMA 1 indoor protection. Ensure panel clearance, proper conductor sizing, and confirmation of fusible with switched neutral configuration for safe replacement or upgrade.
Key specs include 800A amperage, 240V voltage, four poles, and a fusible with switched neutral configuration within a Series K, NEMA 1 enclosure. These characteristics support high-current switching with reliable isolation, reducing arc flash exposure during maintenance and enabling efficient motor control for large equipment. The Posi-Lok feature further enhances connection integrity, minimizing contact resistance and downtime.
Yes, it's designed for demanding environments requiring high current and robust protection. With four poles and fusible with switched neutral, plan for four main feed connections plus neutral if needed. Verify consistency with existing feeders, wire gauges suitable for 800A, and compliance with local electrical codes. The 240V rating supports standard industrial distributions, and the NEMA 1 enclosure suits indoors control rooms or equipment rooms.
The DH427SNGKLP carries UL Listed certification, a widely recognized safety credential for industrial electrical equipment. While CE or IP ratings are common in other regions, this model’s UL listing ensures compliance with U.S. electrical codes and safety practices. The NEMA 1 enclosure also aligns with typical indoor protection requirements in light to moderate dust and moisture exposure environments.
Maintenance expectations center on monitoring contacts for wear in high-current switching and verifying fast, reliable actuation via Posi-Lok. The robust 800A rating supports longer service life between replacements for large motors, potentially reducing downtime and maintenance costs. ROI improves through safer maintenance practices, faster commissioning, and lower risk of unplanned outages in continuous-process industries.