Square D, 400A AC Disconnect (D325NR)

  • Fusible
  • 30–600 A rated for application loads upto 240 V
  • Up to 100 kA SCCR, utilizing appropriately rated Class R Class J or Class T fuses or fuse kits
  • Horsepower rated for motor applications
  • Type 1 and 3R enclosures
  • CSA certified , File LL-89067
  • Meets or exceeds NEMA KS1-1990
  • Tangential combination knockouts 30–200 A
  • Spring reinforced plated copper fuse clips
  • Insulated, bonded solid neutral assemblies (standard in fusible switches)
  • Visible blades
  • Quick-make, quick-break operating mechanism
  • Cover padlock hasp and handle lock “OFF”
SKU SE-SQD-BOS-7 Categories ,


Square D, AC Disconnect, NEMA 3R, 400A, 240VAC, 3-Pole Fused, Neutral Bar, D325NR

General duty safety switches are designed for residential and commercial applications where durability and economy are prime considerations. Typical loads are lighting, air conditioning and appliances. When equipped with fuses, over-current and short circuit protection is also available. The switches are also suitable as service equipment when equipped with a factory-installed neutral assembly or a field-installed equipment grounding kit.

Setting the standard for perfomance, quality and reliability in today’s commercial and industrial applications
First introduced in 1907, Square D safety switches have a long history of leadership in safety and performance. Since then, we have pioneered many innovations to help maximize the lifetime value of our safety switches.
Safety switches play a crucial role in today’s commercial and industrial settings. They isolate power in daily activities and provide an effective way to interrupt power in an emergency. Two primary applications for safety switches are as a lockout on sight disconnect and as a circuit isolation device.

Product Specifications

Manufacturer Schneider Electric (Square-D)
Model D325NR
Length [mm (in)] 778 mm (30.63 in)
Width [mm (in)] 543.85 mm (21.38 in)
Depth [mm (in)] 261.62 mm (10.30 in)
Weight [kg (lb)] (69.98 lb)
More Technical Characteristics
Terminal Type Lugs
Type of Duty General Duty
Maximum Voltage Rating 240VAC
Wire Size #1 to 600 AWG/kcmil (Al/Cu)
Depth 10.13 Inches
Height 30.63 Inches
Action Single Throw
Ampere Rating 400A
Width 21.38 Inches
Approvals UL Listed File: E2875
Enclosure Rating NEMA 3R
Enclosure Type Rainproof and Sleet/Ice proof (Indoor/Outdoor)
Enclosure Material Galvannealed Steel
Factory Installed Neutral Yes
Fuse Type Cartridge (Class H, K, J or R)
Disconnect Type Fusible
Short Circuit Current Rating 100kA (max. depending on fuse type)
Mounting Type Surface
Number of Poles 3-Pole

Additional information

Weight 70 lbs
Dimensions 11 × 31.5 × 23 in