Square D H225NR - Fusible Safety Switch 400A 240V (NEMA 3R)

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Square D H225NR is a fusible safety switch designed for providing visible disconnect and overcurrent protection in industrial power distribution. It is rated for 400A at 240V AC/250V DC and features a 200kA interrupting capacity at 240V for reliable fault protection. The switch is constructed with a NEMA 3R rainproof enclosure measuring 1277.87 mm H x 708.15 mm W x 257.30 mm D and weighs 175.001 lb, utilizing a 2-pole, single-phase configuration compatible with Class R fuses. It is UL listed and designed for integration into FAP frame systems, accepting copper or aluminum conductors from AWG 1/0 to 750 kcmil. This disconnect is typically applied in industrial facilities, data centers, and commercial buildings for main feeder or branch circuit protection and isolation.

Key Features & Specifications
  • Type: Fusible Safety Disconnect Switch, NEMA 3R Enclosure
  • Voltage Rating: 240V AC / 250V DC
  • Current Rating: 400 Amps
  • Configuration: Single, 2-Pole
  • Phase: 1
  • AIC Rating: 200kA at 240V
  • Fuse Class: R
  • Wire Size: AWG 1/0 to 750 kcmil (Copper/Aluminum)
  • Wire: 3
  • Dimensions: 1277.87 mm H x 708.15 mm W x 257.30 mm D (50.31 in x 27.88 in x 10.13 in)
  • Weight: 175.001 lb
  • Standards: UL Listed
  • Compatible Frames: FAP
  • Applications: Main Feeder & Branch Circuit Protection, Industrial Power Distribution
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901450405
  • GTIN: 00785901450405