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Square D H22 Heavy Duty Single Phase Fused Disconnects 400 A NEMA 3R 240 VAC, 250 VDC

Mfg #: H225NR
BOR #: 156248
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Heavy Duty Single Phase Fused Disconnects

  • H22 Series
  • NEMA 3R/12
  • Surface Mount
  • Lug Terminal
  • All heavy duty safety Switches feature a quick-make, quick-break Operating Mechanism, a dual Cover Interlock and a Color-coded indicator Handle.
  • An abundance of copper is used in the heaviest Current carrying Power paths of all Square D by Schneider Electric heavy duty safety Switches
  • Load-make, load-break rated for the switch current rating
  • Lock-Off provision is standard on all heavy duty safety switches
  • Quick-make, quick-break, operating mechanism
  • Red and black handle indicates the ON (red) or OFF (black) switch position
  • Side-opening, left hinged covers
  • Provide significantly higher levels of Mechanical Endurance than NEMA KS-1 or UL98 standards require
  • Standard with plated aluminum lugs which accepts both copper and aluminum wires
  • The design life of a F-Series Switch is a minimum of three times the NEMA requirement
  • The more copper for Current carrying paths, the lower the temperature rise
  • Visible blades for positive blade position indication
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Product can be ordered only in multiples of
Brand Square D  
NEMA Rating NEMA 3R  
Number of Phases 3 phase  
Wire Size (1) 1/0 AWG - 750 kcmil, (2) 1/0 AWG - 300 kcmil  
Voltage 240 VAC, 250 VDC  
Includes Solid neutral  
Number of Poles 2  
Enclosure Type N3R Enclosure  
Disconnect Type Fused  
Amperage 400 A  
Material Steel  
Schneider Electric Specification Sheet Specification Sheet
Heavy Duty Safety Switches, Certificate, UL - 080301-E154828 (pdf) Compliance
Small and medium project solutions, available now - brochure - 998-21381316_GMA-US_Small+and+medium+project+solutions+available+now (pdf) Brochure
Safety Switches: Section 3 - Digest 179 (2024) - Safety-Switches-Digest-Catalog-0100CT2401-SEC-03 (pdf) Catalog
Digest Catalog 03: Safety Switches - 0100CT1901_SEC-03 (pdf) Catalog
Square D Safety Switches Brochure - 3100BR9801 (pdf) Brochure
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Tutorial for installing the replacement cover latch and spring kit on Square D General, ...

Locking Square D™ Heavy Duty Safety Switch Handles to ON Position | Schneider Electric Support

Tutorial discussing the options for locking the handle of a Square D™ Heavy Duty Safety Switch into...

Relocating Heavy Duty Safety Switch Load Base to Accept Class J Fuses | Schneider Electric Support

Tutorial for converting a Square D Heavy Duty Safety Switch to accept Class J fuses by relocating...

Demonstrating the Dual Cover Interlock on Heavy Duty Safety Switches | Schneider Electric Support

A demonstration of the Dual Cover interlock feature of Square D Heavy Duty Safety Switches which...

Installing RFK10 Class R Fuse Kits into 100A Series F Safety Switches | Schneider Electric Support

Tutorial for installing RFK10 Class R Fuse Kits into Square D 100A Series F Safety Switches to...

Differentiating Square D™ General Duty & Heavy Duty Safety Switches | Schneider Electric Support

Overview comparing the similarities and differences in physical characteristics and features of...

Installing SN0610 Neutral Assembly into an F-Series Heavy Duty Switch

Tutorial for installing a SN0610 solid neutral assembly into a Square D F-series heavy duty safety...

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