Loading...

Nonfusible, Safety Switch, General Duty, 240 V, 3PST, NEMA 3R MPN:DU321RB

Discount: See in Cart
Free Shipping
In Stock
Brand: Square D
Part #: DU321RB
UPC: 785901491620
SKU
510-G2706261
Regular Price $596.43 Special Price $331.49

BBB Accredited - ResellerRatings Elite Member - SBA Service-Disabled Veteran-Owned Certified

Nonfusible, Safety Switch, General Duty, 240 V, 3PST, NEMA 3R

The SQUARE D - DU321RB Safety Disconnect Switch is a crucial device for safe equipment maintenance and emergency situations in industrial electrical systems. It allows industry professionals to safely disconnect power systems, reducing the risk of electrical accidents during routine operations or unexpected events. This non-fusible switch is suitable for residential use, controlling power supply to various appliances and devices. Its NEMA 3R rating ensures compatibility with certain environmental conditions, making it suitable for both indoor and outdoor use. This switch is UL listed and constructed from durable galvannealed steel, providing a reliable and long-lasting solution for electrical supply management.

Top product features:

  • Disconnects power systems manually for safe equipment maintenance and emergency situations
  • Interrupts the flow of electricity when activated, reducing the risk of electrical accidents
  • Constructed from galvannealed steel for durability and resistance against corrosion

Top product applications:

  • Residential use
  • Industrial electrical systems
  • Routine operations or unexpected events

The SQUARE D - DU321RB is a Safety Disconnect Switch, an essential device in industrial electrical systems designed to interrupt the flow of electricity for safe equipment maintenance and emergency situations. This switch falls under the broader category of Electrical Supplies and is used by industry professionals to safely disconnect power systems, reducing the risk of electrical accidents during routine operations or unexpected events.


  • Amps AC: This switch is rated for a 30 A current, which is within its specified operational parameters.
  • Certifications: UL listed file E2875 certification indicates that this safety disconnect switch has been tested to meet recognized safety and quality standards.
  • Contact Form: The 3PST contact form indicates how many circuits can be controlled and whether they are normally open (NO) or closed (NC), determining the functionality of the safety disconnect switches.
  • Device Application: Intended for residential use, it can be installed in homes where there is a requirement to control the power supply to various appliances and devices.
  • Disconnect Type: As a non-fusible disconnect switch, it employs a mechanism to manually break the circuit rather than using replaceable fuses that melt when overheated.
  • NEMA Enclosure Rating & Type: With a NEMA 3R rating, this enclosure type indicates compatibility with certain environmental conditions such as dust, water, corrosion and external ice formation. It may be used in both indoor/outdoor environments according to these specifications.
  • Housing Material & Construction Material: Constructed from galvannealed steel known for its properties of durability and resistance against corrosion. Its suitability depends on specific usage requirements."


Additional Information

  • Country of Origin: MX
  • Drop Ship Item: No
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 1 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 10.00
  • Package Width: 7.30
  • Package Height: 5.30
  • Package Weight: 4.90
Product info last updated on January 13, 2026 1:33pm UTC Category: Industrial Electrical Controls and Automation
© 2018-2025 GoVets. All Rights Reserved.
In stock