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Nonfusible, Motor Disconnect Switch, General Duty, 240 V, 480 V, 600 V, 3PST MPN:MD3604X

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In Stock
Brand: Square D
Part #: MD3604X
UPC: 785901911814
SKU
510-G4203175
Regular Price $344.81 Special Price $246.29

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Nonfusible, Motor Disconnect Switch, General Duty, 240 V, 480 V, 600 V, 3PST

The SQUARE D - MD3604X Motor Disconnect Switch is a critical safety device for industrial electrical systems, ensuring safe maintenance, repair, or replacement of motors by isolating and cutting off power supply. It's perfect for industry professionals seeking efficient control and automation processes, with a 60 A current rating and horsepower capacity of up to 20 hp at 240V AC, 40 hp at 480V AC, and 40 hp at 600V AC. Its nonfusible protection method and NEMA-rated enclosure make it suitable for various environments, from indoor to outdoor use, providing reliable and safe operation in a range of applications.

Top product features:

  • Nonfusible protection method for safe operation
  • 3PST contact form for control of multiple circuits
  • NEMA rated enclosure for withstanding various environmental conditions

Top product applications:

  • Industrial Electrical Systems
  • Efficient Control and Automation Processes
  • Safe Maintenance, Repair, or Replacement of Motors

The SQUARE D - MD3604X is a Motor Disconnect Switch, an essential safety device used in industrial electrical systems. It serves to isolate and cut off power supply to motors, preventing accidental startup and ensuring safe maintenance, repair or replacement of the motor. This switch is part of broader electrical supplies and is utilized by industry professionals for efficient control and automation processes.


  • Amps: With a 60 A current rating, this switch is rated to carry up to 60 A of electrical current.
  • Contact Form: The 3PST contact form indicates how many circuits can be controlled and whether they are normally open (NO) or closed (NC).
  • Duty: Classified as 'General' duty, it's suitable for standard applications.
  • Enclosure Type: NEMA rated at 1, 12, 3, 3R, 4 & 4X indicating its ability to withstand various environmental conditions such as dust, water corrosion and external ice formation.
  • Environment Rating: Rated for both indoor/outdoor use making it versatile in different settings.
  • Fusible / Nonfusible: Operates with a nonfusible protection method not requiring a replaceable fuse.
  • Horsepower Capacity: Rated for use with motors having horsepower ratings of up to 20 hp at 240V AC ,40 hp at480V AC &40 hp @600V AC depending on the voltage applied.
  • Housing Material & IP Rating : Made from non-metallic material with an IP rating of '66', indicating its degree of protection against intrusion such as dust and water according to international standards


Additional Information

  • Country of Origin: ZZ
  • 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: 10.10
  • Package Width: 5.60
  • Package Height: 4.90
  • Package Weight: 2.10
Product info last updated on February 12, 2026 1:38am UTC Category: Industrial Electrical Controls and Automation
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In stock