Eaton Heavy Duty Safety Switch...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$328.44
$294.44

Eaton Heavy Duty Safety Switch Fusible 30A Three-Pole 240V NEMA 1 Class H Single-Throw

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Model: DH321NGK

In Stock (leaves warehouse same day if ordered before 3pm ET)

$328.44
$294.44
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Eaton Heavy Duty Safety Switch Fusible 30A Three-Pole 240V NEMA 1 Class H Single-Throw

Professional Heavy Duty Electrical Disconnect Switch

The Eaton Heavy Duty Safety Switch delivers exceptional electrical power management and control performance for commercial and industrial electrical isolation applications. This 30A three-pole fusible safety switch provides reliable electrical protection and power disconnection designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.

Professional Features & Benefits

Electrical Performance & Protection

  • 30A Three-Pole Configuration - Provides reliable electrical isolation and protection for 240V three-phase electrical systems with professional-grade current handling capacity
  • Class H Fuse Provision - Compatible with standard Class H fuses for versatile overcurrent protection and easy maintenance in commercial applications
  • Fusible with Neutral Design - Includes neutral switching capability for complete electrical isolation and enhanced safety during maintenance operations
  • 240V Voltage Rating - Engineered for reliable operation in standard commercial and light industrial electrical distribution systems

Heavy Duty Construction & Installation

  • NEMA 1 Enclosure Protection - Painted steel enclosure provides durable protection for indoor electrical applications with professional appearance
  • Single-Throw Operation - Simple and reliable switching mechanism for straightforward electrical isolation and reconnection procedures
  • Four-Wire Configuration - Accommodates neutral conductor switching for complete electrical system isolation and enhanced safety protocols

Technical Specifications

Amperage Rating: 30A, Voltage Rating: 240V, Number of Poles: Three-pole, Enclosure: NEMA 1, Enclosure Material: Painted steel, Fuse Class: Class H, Configuration: Fusible with neutral, Throw Type: Single-throw, Number of Wires: 4, Wire Size: #14-2 AWG Cu/Al, Horsepower Rating: 1.5, 3/3, 7.5/5 HP (1,3PH @Std/TD, 250 Vdc), Dimensions: 16.5" L x 9.5" W x 16" H, Weight: 14 lb, Certifications: UL Listed

Installation & Usage

  1. Verify electrical system is de-energized and follow proper lockout/tagout procedures before installation
  2. Mount safety switch securely to appropriate electrical enclosure or panel using proper mounting hardware
  3. Connect incoming power conductors to line terminals following NEC wiring requirements and local electrical codes
  4. Install appropriate Class H fuses matching the electrical load requirements and system protection needs
  5. Connect load conductors to load terminals ensuring proper wire size compatibility (#14-2 AWG Cu/Al)
  6. Verify all electrical connections are tight and properly torqued according to manufacturer specifications
  7. Test switch operation and verify proper electrical isolation before energizing the system

Professional Applications

Ideal for:

  • Commercial Electrical Systems - Motor control centers, HVAC equipment disconnects, and general power distribution isolation
  • Industrial Power Distribution - Machine tool disconnects, conveyor system isolation, and manufacturing equipment control
  • Facility Electrical Safety - Maintenance disconnects for lighting systems, ventilation equipment, and building services
  • Motor Control Applications - Three-phase motor disconnects for pumps, fans, compressors, and industrial machinery up to 7.5 HP
  • Electrical Panel Protection - Main disconnects for sub-panels, distribution boards, and electrical control systems
  • Service Entrance Applications - Secondary disconnects for electrical services and utility meter installations
  • Emergency Isolation Systems - Safety disconnects for critical electrical equipment requiring rapid power isolation
  • Maintenance Access Control - Lockable disconnects for equipment requiring regular electrical maintenance and service

Heavy Duty Design Advantage

Eaton's heavy duty safety switch construction provides superior electrical performance and durability for demanding commercial and industrial applications. The painted steel NEMA 1 enclosure offers excellent protection against environmental factors while maintaining professional appearance. The single-throw fusible design with neutral switching ensures complete electrical isolation for enhanced safety during maintenance operations, making it the preferred choice for professional electrical installations.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers the reliability and performance that electrical professionals demand. This UL Listed safety switch represents Eaton's commitment to electrical safety standards and engineering excellence, trusted by electricians, electrical contractors, and facility professionals worldwide for critical power distribution, protection, and control applications in commercial and industrial electrical systems.

Manufacturer Resources

Product Specs

Amperage Rating:
30A
Certifications:
UL Listed
Enclosure:
NEMA 1
Enclosure Material:
Painted steel
Fuse Class Provision:
Class H
Fuse Configuration:
Fusible with neutral
Hp Rating Max:
1.5, 3/ 3, 7.5/ 5 hp (1,3PH @Std/TD, 250 Vdc)
Number Of Poles:
Three-pole
Number Of Wires:
4
Product Category:
Heavy Duty, Fusible with neutral
Product Height:
16 in
Product Length Depth:
16.5 in
Product Type:
Safety Switch
Product Weight:
14 lb
Product Width:
9.5 in
Voltage Rating:
240V
Wire Size:
#14-2 AWG Cu/Al
Product Group:
Electrical
Department:
Electrical

Eaton DH321NGK – Frequently Asked Questions

How fast can I get the Eaton DH321NGK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton DH321NGK come with a warranty?
Absolutely. The Eaton DH321NGK is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton DH321NGK?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Eaton DH321NGK from ZenSupply?
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