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Square D HU36 Heavy Duty Three Phase Non-fused Disconnects 1200 A NEMA 3R 600 V

Mfg #: HU368R
BOR #: 311656
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HU36 Series Heavy Duty Three Phase Non-fused Disconnects

  • 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. The more copper for Current carrying paths, the lower the temperature rise.
  • Load-make, load-break rated for the switch current rating
  • Lock-Off provision is standard on all heavy duty safety switches
  • According to the National Electric Code, section 690.15, PV arrays must have a disconnecting means to isolate the inverter from the PV power source.
  • Utility grid-tie inverters that utilize PV arrays with voltages above 250VDC require a disconnect rated for 600VDC to perform this function
  • Square D disconnects For Use With grid-tie inverters that don't already have pre-built disconnects
  • It is nonfusible, rated at 600 volts DC
  • The DC input of up to two sub-array can be connected to the safety switch and it is outdoor rated so it can be located close to the panels
  • Can be used for disconnecting up to three PV arrays for three grid-tie inverters
  • It has wiring lugs that are rated to accept two #14 to #10 wires in each lug
  • The Square D F Series safety Switches provide high levels of Mechanical Endurance than NEMA KS-1 or UL98 standards require
  • Red and black handle indicates the ON (red) or OFF (black) switch position
  • Side-opening, left hinged covers
  • The design life of a F-Series Switch is a minimum of three times the NEMA requirement
  • 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 phases  
Wire Size 3/0 AWG - 750 kcmil  
Voltage 600 V  
Number of Poles 3  
Enclosure Type N3R Enclosure  
Disconnect Type Non-fused  
Amperage 1200 A  
Material Steel  
Small and medium project solutions, available now - brochure - 998-21381316_GMA-US_Small+and+medium+project+solutions+available+now (pdf) Brochure
Schneider Electric Specification Sheet Specification Sheet
Digest Catalog 03: Safety Switches - 0100CT1901_SEC-03 (pdf) Catalog
800A and 1200 A Heavy Duty Safety Switches Installation Instructions - 40271-959-02 (pdf) Installation and Instruction Manuals
Safety Switches: Section 3 - Digest 179 (2024) - Safety-Switches-Digest-Catalog-0100CT2401-SEC-03 (pdf) Catalog
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